Cyclic compound - Factbites
 Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Cyclic compound


    Note: these results are not from the primary (high quality) database.


Related Topics

In the News (Sat 26 Dec 09)

  
 United States Patent Application: 0030203963
The invention of claim 1 wherein the cyclic compound is a compound having Formula II 20or a derivative thereof, wherein R1, R2, R3, R4, and R5 are as defined in the preceding claims.
The invention of claim 1 wherein the cyclic compound is a compound having Formula III 21or a derivative thereof; wherein R1, R2, R3, R4, and R5 are as defined in the preceding claims.
The invention of claim 1 wherein said cyclic compound is of formula V, 23or a derivative thereof, wherein R1,R2, R3, R4, R5, R6 and R' are as defined in claim 9.
appft1.uspto.gov /netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1="20030203963".PGNR.&OS=DN/20030203963&RS=DN/20030203963   (9005 words)

  
 Rule A-61. General Principles (CYCLIC HYDROCARBONS WITH SIDE CHAINS)
61.2 - When there is no generally recognized trivial name for the hydrocarbon, then (1) the radical name denoting the aliphatic chain is prefixed to the name of the cyclic hydrocarbon, or (2) the radical name for the cyclic hydrocarbon is prefixed to the name of the aliphatic compound.
61.3 - In accordance with the principle (a) of Part.2 of this rule, hydrocarbons containing several chains attached to one cyclic nucleus are generally named as derivatives of the cyclic compound; and compounds containing several side chains and/or cyclic radicals attached to one chain are named as derivatives of the acyclic compound.
Numbering of double and triple bonds in chains or non-aromatic rings is assigned according to the principles of Rule A-3; numbering and citation of substituents are effected as described in Rule A-2.
www.acdlabs.com /iupac/nomenclature/79/r79_83.htm   (365 words)

  
 Huckel
In order for fully conjugated cyclic compound to "reap the benifits"of resonace stabilization (and thus be aromatic), the compound has to be planar.(Why?) The [10] annulene shown below, though a Huckel (4n+2) compound, is not aromatic because the compound is not planar.
This empirical method calls for inscribing the polygon that represent the cyclic compound in a circle with one corner of the polygon at the bottom.
Certain ions generated from cyclic compounds can be aromatic.
www.wiu.edu /users/mftkv/Chem332/Huckel.html   (451 words)

  
 Search Encyclopedia.com
cyclic compound cyclic compound, any one of a class of compounds whose molecules contain a number of atoms bonded together to form a closed chain or ring.
Monroe Doctrine -> Application and Extension The doctrine was not ratified by any congressional legislation; it did not obtain a place in international law, and the term Monroe Doctrine did not come into general circulation until the 1850s.
The arms are extensions of the body; each contains an extension of the body cavity, a radial canal, and body organs.
www.encyclopedia.com /searchpool.asp?target=Cyclic+extension   (451 words)

  
 Organic Sections of CA
This section includes studies on the mechanism and kinetics of reactions of aliphatic, cycloaliphatic, aromatic, and heterocyclic compounds, as well as spectral, stereochemical, and thermodynamic studies, correlation analysis, and quantum mechanics where emphasis is on the reaction.
This section includes the synthesis, purification, stabilization, reactions, and determination of molecular structure of alicyclic carbon compounds, including fully hydrogenated derivatives of polynuclear condensed benzene compounds and such aromatic compounds as azulenes, fulvenes, and tropones.
This section includes the synthesis, purification, stabilization, reactions, and determination of molecular structure of cyclic compounds that contain two or more carbon atoms in a single ring and no more than one hetero atom (nitrogen, oxygen, sulfur, and the halogens), as well as spiro compounds with one hetero atom in each ring.
www.cas.org /PRINTED/orgsc.html   (1358 words)

  
 Platinum catalyzed heterocyclic compound compositions - Patent 5128431
There is provided a curable composition, comprising: A. a heterocyclic compound selected from the group consisting of epoxy-functional silicones, epoxy-functional acrylic polymers, and monomers selected from the group consisting of tetrahydrofurans, oxetanes, lactones, spirocarbonates, spiroesters, cyclic sulfur and cyclic nitrogen compounds; B. an Si-H functional silicon compound; and C. a platinum catalyst.
The reaction preference is between the unsaturated bond and the Si-h compound, but as the concentration of double bonds decreases the oxirane rings of the resultant heterocyclic functional polymer may react and ultimately polymerize.
In preferred embodiments of the present invention, the heterocyclic compound is a silicone polymer containing epoxy functionality.
www.freepatentsonline.com /5128431.html   (3278 words)

  
 Deodorant fibrous material and method of producing the same - US Patent 6521553
The cycloalkane halide compound used as a flame retardant agent is a cyclic saturated carbohydrate compound or a saturated carbohydrate compound having at least one cyclic saturated carbohydrate group, in which at least one hydrogen atom is substituted by a halogen such as bromine, chlorine or the like.
Especially after pretreatment with the cycloalkane halide compound, the fibrous material may be treated with a deodorant composition containing, in addition to the deodorant and binder components (1)-(3) a copolymer of a polyalkylene glycol with an aromatic dicarboxylic acid and an alkylene glycol.
Particularly preferred are copper compounds that chelates with nitrogen atoms in a synthetic resin thereby improving the compatibility of the treating liquid and improving the washing durability of these compounds.
www.patentstorm.us /patents/6521553.html   (3278 words)

  
 World Intellectual Property Organization
or branched alkyl compounds comprising 1-20 carbon atoms and cyclic alkyl compounds comprising 5-10 carbon atoms.
The term "alkyl"includes straight chain or branched alkyl compounds comprising 1-20 carbon atoms and cyclic alkyl compounds comprising 5-10 carbon atoms.
This crystalline compound, called qinghaosu, also referred to as QHS or artemisinin, is a sesquiterpene lactone with an internal peroxide linkage.
www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=00/42046.010920&ELEMENT_SET=DECL   (3278 words)

  
 aliphatic compound
cyclic compound - cyclic compound, any one of a class of compounds whose molecules contain a number of atoms bonded...
; compounds that contain a ring but are not aromatic compounds are called alicyclic.
], any of a large class of organic compounds whose carbon atoms are joined together in straight or branched open chains rather than in rings.
www.factmonster.com /ce6/sci/A0803352.html   (115 words)

  
 U.S. Pregrant 20020040154 - Substituted oxygen alicyclic compounds, including methods for synthesis thereof
The invention also provides new cyclic oxygen compounds and pharmaceutical compositions and therapeutic methods that comprise such compounds.
The invention provides new methods for preparation of cyclic oxygen compounds, including 2,5-disubstituted tetrahydrofurans, 2,6-disubstituted tetrahydropyrans, 2,7-disubstituted oxepanes and 2,8-oxocanes.
Substituted oxygen alicyclic compounds, including methods for synthesis thereof
cxp.paterra.com /uspregrant20020040154.html   (139 words)

  
 cyclic compound on Encyclopedia.com
A cyclic compound that behaves chemically like the open-chain aliphatic compounds is said to be alicyclic; cyclohexane is such a compound.
Many cyclic compounds exhibit the special properties characteristic of the aromatic compounds.
The use of aluminium phenolate in ortho-alkylation of phenol and hydroquinone with alkadienes: formation of cyclic ethers.
www.encyclopedia.com /html/c1/cyclicco.asp   (382 words)

  
 aromatic compound on Encyclopedia.com
Presence of the six-membered benzene ring is not essential for aromatic compounds; for example, furan, a heterocyclic compound that has a five-membered ring that includes an oxygen atom, has aromatic properties, as does pyridine, a heterocyclic compound whose six-membered ring includes a nitrogen atom.
On the other hand, the eight-membered cyclic compound with four alternating double bonds (cyclooctatetraene) is not aromatic and shows reactivity similar to alkenes.
For this reason, the bonds in the aromatic ring are less reactive than ordinary double bonds; aromatic compounds tend to undergo ionic substitution (e.g., replacement of a hydrogen bonded to the ring with some other group) rather than addition (which would involve breaking one of the resonant bonds in the ring).
www.encyclopedia.com /html/a1/aromatic.asp   (529 words)

  
 Heterocyclic compound - Wikipedia, the free encyclopedia
Heterocyclic compounds are organic compounds which contain a ring structure containing atoms in addition to carbon, such as sulfur, oxygen or nitrogen, as part of the ring.
Note that compounds such as cyclopropane, an anaesthetic with explosive properties, and cyclohexane, a solvent, are not heterocyclic, they are merely cycloalkanes.
The suffix '-cyclic' implies a ring structure, while 'hetero' refers to an atom other than carbon, as above.
en.wikipedia.org /wiki/Heterocyclic_compound   (103 words)

  
 2
As the photon is the phantom or the transitory state of the primordial cyclic pattern of thought-wave, so are all of the subatomic or atomic particles phantoms or transitory states of various compound cyclic thought-wave patterns.
The speed of the primary cyclic pattern is absolute and constant, while the speeds of the secondary cyclic wave patterns are relative and variable.
Time is the relative measure of the intervals of repetitive cyclic patterns existing in and as the universe.
www.philosophy.org /webarticles/text/third18.htm   (587 words)

  
 United States Patent: 6,624,143
The monocalcium salts of the compound of the formula II are particularly suitable for the preparation of a pharmaceutical against bacterial infections, the monocalcium salts (3c) and in particular (3d) having the empirical formula (3c, 3d/iv) C.sub.59 H.sub.92 N.sub.14 O.sub.19 Ca being preferred.
The process as claimed in claim 32 or 33, wherein the sodium or ammonium salt of the compound of the formula II or the calcium salt of the compound of formula II is dissolved in water and the less polar solvent is methanol.
The process as claimed in claim 32 or 33, wherein the sodium or ammonium salt of the compound of the formula II or the calcium salt of the compound of formula II is dissolved in polar solvent which is selected from the group consisting of water dimethyl sulfoxide and methanol.
spore.patentmatrix.com /Projects/WNCCTC/BOS/6624143.html   (587 words)

  
 Introduction
Heterocyclic compounds are normally classified according to the size of the heterocyclic ring and the nature and number of the heteroatoms, and the present work is organised on this basis.
Many reduced heteroaromatic compounds are important and are dealt with in the General Chapters and appropriate Monograph Chapters, but usually more briefly than for the corresponding heteroaromatic systems because of this overall similarity with the corresponding acyclic compounds.
Carbocyclic compounds are very usefully divided into (a) saturated (alicyclic) compounds, (b) aromatic compounds and (c) the intermediate partially unsaturated (alicyclic) compounds.
www.elsevier.com /homepage/saa/chc/introduction.htm   (587 words)

  
 Catalyst comprising nitrogen-containing heterocyclic compound, and process for producing organic compound using the catalyst - US Patent 6403521
The compounds (c) each having a methine carbon atom (or a tertiary carbon atom) include (c1) cyclic compounds each having a methine group (i.e., a methine carbon-hydrogen bond) as a constitutive unit of its ring, and (c2) chain compounds each having a methine carbon atom.
The oxidation of the compound (m) having a non-aromatic ethylenic bond with oxygen in the presence of the catalyst yields a corresponding epoxy compound (e.g., 2,3-epoxyoctane is formed from 2-octene, and cyclooctene oxide is formed from cyclooctene).
When the compound (b) having a carbon-hydrogen bond at the adjacent position to an unsaturated bond is oxidized with oxygen in the presence of the catalyst, a hydroxyl group or oxo group is introduced at the adjacent position to the unsaturated bond to yield a corresponding alcohol, aldehyde or ketone.
www.patentstorm.us /patents/6403521.html   (11464 words)

  
 aliphatic compound - Hutchinson encyclopedia article about aliphatic compound
Cyclic compounds that do not have delocalized electrons are also aliphatic, as in the alicyclic compound cyclohexane (C
Among the principal aliphatic compounds are the alkanes (paraffins), which include methane, ethane, pentane, petrol, kerosene, lubricating oil, and paraffin wax; the alkenes (olefins), including ethene (C
Any organic chemical compound in which the carbon atoms are joined in straight chains, as in hexane (C
encyclopedia.farlex.com /aliphatic+compound   (170 words)

  
 The MSDS HyperGlossary: Aliphatic
An aliphatic compound is one that is not aromatic; i.e.
Aliphatic is especially used in reference to open-chain (non-cyclic) hydrocarbons.
Aliphatic hydrocarbons and their chemical derivatives are often quite flammable.
www.ilpi.com /msds/ref/aliphatic.html   (324 words)

  
 Ring Systems
Aliphatic compounds having a carbocyclic ring structure which may be saturated or unsaturated, but may not be a benzenoid or other aromatic system.
Macrocyclic polydentate compounds, usually uncharged, in which three or more coordinating ring atoms (usually oxygen or nitrogen) are or may become suitably close for easy formation of chelate complexes with metal ions or other cationic species.
Cyclic compounds in which all of the ring members are carbon atoms.
www.chem.qmul.ac.uk /iupac/class/rings.html   (1541 words)

  
 World Intellectual Property Organization
The one pot method of claim 1 wherein the organometallic compound is represented by the formula LM (R) 3 wherein L is selected from pentahapto, un-, mono-, di-, tri-, tetra-, pentasubstituted cyclopentadienyl, indenyl, cyclic and acyclic allyls, R is methyl, and M is platinum.
The method provides for the synthesis of organometallic compounds using a one step process where all manipulations are carried out in a single vessel, and which route to this family of compounds does not require the isolation of an intermediate complex.
The concentration of the metal source compound can vary over a wide range, and need only be that minimum amount necessary to provide the given metal concentration desired to be employed and which will furnish the basis for at least the amount of metal necessary for the organometallic compounds of this invention.
www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/106011.031224&ELEMENT_SET=DECL   (7558 words)

  
 Tertiary-amino allyl-or xylyl-lithium initiators and method of preparing same - US Patent 5521309
Compounds useful as polar coordinators are organic and include tetrahydrofuran, linear and cyclic oligomeric oxolanyl alkanes such as 2-2'-di(tetrahydrofuryl)propane, 2,2-bis(tetrahydrofuryl)propane, di-piperidyl ethane, hexamethylphosphoramide, N-N'-dimethylpiperazine, diazabicyclooctane, dimethyl ether, diethyl ether, tributylamine and the like.
One preferred class of organolithium compounds has the general formula RLi, where R is selected from the group consisting of alkyls and cycloalkyls having from about 1 to about 20 carbon atoms.
An initiator, as set forth in claim 1, wherein said organolithium compound has the formula RLi, where R is selected from the group consisting of alkyls and cycloalkyls having from about 1 to about 20 carbon atoms.
www.patentstorm.us /patents/5521309.html   (7558 words)

  
 Radiation-reactive precursor stages of highly heat-resistant polymers - Patent 4371685
The diamines, diisocyanates, bis-acid chlorides and dicarboxylic acids to be reacted with these compounds have at least one cyclic structure element.
The compounds, carrying radiation-sensitive radicals, contain two carboxyl, carboxylic-acid chloride, amino, isocyanate or hydroxyl groups suitable for addition or condensation reactions and in part, in ortho- or peri-position thereto, radiation-reactive groups bound to carboxyl groups in ester-fashion.
The radiation-reactive precursor according to claim 1 wherein the hydroxyl group-containing compound is a polyoxazine dione precursor.
www.freepatentsonline.com /4371685.html   (3487 words)

  
 Alicyclic compound - Biocrawler
The term alicyclic compound refers to organic chemical compounds that are both aliphatic and cyclic.
This page was last modified 03:23, 26 Nov 2004.
www.biocrawler.com /encyclopedia/Alicyclic_compound   (103 words)

  
 Search Results for "Compound"
A cyclic compound that behaves chemically like the open-chain aliphatic...
...The compound is dispersed as an aerosol or as a finely divided powder.
...The hydrocarbons of the alkane, alkene, and alkyne series are aliphatic compounds, as are fatty acids and many other compounds.
www.bartleby.com /cgi-bin/texis/webinator/65search?query=Compound   (206 words)

  
 Alicyclic compound - Wikipedia, the free encyclopedia
An alicyclic compound is an organic compound that is both aliphatic and cyclic.
 This article about an organic compound is a stub.
This page was last modified 18:33, 16 October 2005.
en.wikipedia.org /wiki/Alicyclic_compound   (48 words)

  
 Permselective membrane - United States Patent 4,265,745
The polyfunctional compounds generally have a cyclic structure, and may be aromatic, heterocyclic or alicyclic.
The membrane of claim 1 wherein the polyfunctional compound is a trifunctional aromatic compound, or a mixture of a difunctional aromatic compound and a trifunctional aromatic compound.
The membrane of claim 26 wherein the di- or tri-functional aromatic compound is isophthaloyl chloride, terephthaloyl chloride, trimesoyl chloride or 3-chlorosulfonylisophthaloyl chloride.
xrint.com /patents/us/4265745   (9027 words)

  
 Search Results for aromatic - Encyclopædia Britannica
Once it became clear that the special stability of benzene and related compounds was associated with the cyclic nature of its conjugated system of double bonds, organic chemists attempted to...
The aromatic compounds, produced in the catalytic reforming of naphtha, are major sources of petrochemical products.
any of a large class of chemical compounds whose molecular structure includes one or more planar rings of atoms joined by covalent bonds of two different kinds.
www.britannica.com /search?query=aromatic&submit=Find&source=MWTEXT   (471 words)

  
 Chemical Reactivity
The second and third compounds have ten-membered rings, which are forced to be planar, or nearly planar, by the bridging bond or methylene group.
Eventually, the presently accepted structure of a regular-hexagonal, planar ring of carbons was adopted, and the exceptional thermodynamic and chemical stability of this system was attributed to resonance stabilization of a conjugated cyclic triene.
Because of the low hydrogen to carbon ratio in this and other aromatic compounds (note that the H:C ratio in an alkane is >2), chemists expected their structural formulas would contain a large number of double or triple bonds.
www.cem.msu.edu /~reusch/VirtualText/react3.htm   (3980 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.