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Topic: Alicyclic compounds

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	Alicyclic unsaturated compounds, their preparation and use of same as perfume ingredients - Patent 4392993
		The new compounds have formula ##STR1## possessing a methyl group attached to the carbon atom at position 3 or 4 of the ring and one double bond in one of the positions of the carbonyl side chain as indicated by the dotted line.
		A compound of formula ##STR6## possessing a methyl group attached to the carbon atom at position 3 or 4 of the ring and one double bond in one of the positions of the carbonyl side chain as indicated by the dotted line.
		The invention relates to new alicyclic unsaturated compounds of formula ##STR3## possessing a methyl group attached to the carbon atom at position 3 or 4 of the ring and one double bond in one of the positions of the carbonyl side chain as indicated by the dotted line.
	www.freepatentsonline.com /4392993.html (1396 words)

	Alicyclic Compound Encyclopedia Information @ Karr.net (Karr Network) (Site not responding. Last check: )
		An alicyclic compound is an organic compound that is both aliphatic and cyclic.
		Alicyclic compounds may or may not have aliphatic side chains attached.
		Cyclohexene is an alicyclic compound with a double bond.
	www.karr.net /encyclopedia/Alicyclic_compound (493 words)

	Ester compounds having alicyclic and oxirane structures and method for preparing the same - Patent 6500971
		On the other hand, the polymers containing alicyclic compounds in the backbone have rigidity within the acceptable range, but are less reactive with acid than poly(meth)acrylate because of their backbone structure, and difficult to increase reactivity because of the low flexibility of polymerization.
		From a process aspect, the ester compound of the general formula (1) is prepared by effecting Darzen's reaction between a carbonyl compound of the following general formula (4) and a haloacetate compound of the following general formula (5) in the presence of a base according to the following reaction scheme.
		Upon reaction, the molar ratio of the compounds of formulas (4) and (5) may be selected as appropriate although it is preferred to use the compound of formula (5) in an amount of about 0.5 to 1.5 moles, especially about 0.8 to 1.2 moles per mole of the carbonyl compound of formula (4).
	www.freepatentsonline.com /6500971.html (2353 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.
		Compounds derived from heteroarenes by replacement of a formal carbon-carbon double bond by a formal triple bond (with loss of two hydrogen atoms).
	www.chem.qmul.ac.uk /iupac/class/rings.html (1541 words)

	FUNCTIONAL GROUP-CRACKING-HETEROCYCLIC COMPOUNDS-ALICYCLIC COMPOUNDS-
		Organic compounds which have open chain skeleton are known as aliphatic compounds.
		When ring of compound consists of carbon atoms only, the compound is said to be "homocyclic or carbocyclic compound".
		Homocyclic compounds which resemble aliphatic compounds and do not contain benzene ring are termed as "Alicyclic compounds".
	www.citycollegiate.com /organic3.htm (320 words)

	Organic chemistry Summary
		Those compounds that are related to life processes are dealt with in the branch of organic chemistry which is called biochemistry.
		The compounds which only have carbon and hydrogen in their ring(s) are also called homocyclic, those with other elements in the ring heterocyclic and the atom substituting the carbon is a heteroatom.
		Because many organic compounds have relatively low boiling points and/or dissolve easily in organic solvents there exist many methods for separating mixtures into pure constituents that are specific to organic chemistry such as distillation, crystallization and chromatography techniques.
	www.bookrags.com /Organic_chemistry (4377 words)

	Coffee Chemistry and Coffee Aroma
		Table 1 shows the compounds that are likely to be the most influential in coffee aroma This data was compiled from the work of both Grosch and Blank and is by no means exhaustive.
		It should be noted that the OAV alone does not dictate which compounds are the most important compounds present in coffee, but rather suggests compounds that are likely to have a large impact on the aroma of coffee.
		The pyrazines are the second most abundant class of aromatic compounds and contribute to the roasted, walnut, cereal, cracker, or toast-like flavors in coffee.
	www.coffeeresearch.org /science/aromamain.htm (599 words)

	Oxford University Press
		Alicyclic chemistry is the study of non- aromatic organic compounds made up of one or more carbocyclic rings.
		It is the intention of this book to provide an overview of the behaviour of alicyclic compounds in the depth required for an undergraduate chemistry course.
		Many aspects of alicyclic chemistry provide an important framework for a proper understanding of the behaviour of organic molecules in general and are key components of any first degree-level chemistry course.
	www.oup.com /ca/isbn/0-19-850104-8 (254 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal
		Simple alicyclic compounds are the cycloalkanes cyclopropane, cyclobutane and cyclohexane.
		Spiro compounds have bicyclic connected through one carbon atom.
		The mode of ring-closing in the formation of many alicyclic compounds can be predicted by Baldwin's rules.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=alicyclic_compound (133 words)

	Rule A-41. Compounds: Method 1 (SPIRO HYDROCARBONS)
		41.1 - Monospiro compounds consisting of only two alicyclic rings as components are named by placing "spiro" before the name of the normal acyclic hydrocarbon of the same total number of carbon atoms.
		The position of the spiro atom is indicated in the name of the spiro compound by placing the appropriate locants before the name.
		41.6 - Polyspiro compounds consisting of a linear assembly of three or more alicyclic systems are named by placing "dispiro-", "trispiro-", "tetraspiro-", etc., before the name of the unbranched-chain acyclic hydrocarbon of the same total number of carbon atoms.
	www.acdlabs.com /iupac/nomenclature/79/r79_197.htm (538 words)

	Alicycliphilus denitrificans gen. nov., sp. nov., a cyclohexanol-degrading, nitrate-reducing {beta}-proteobacterium -- ...
		Alicyclic compounds, naturally made by plant cells as secondary
		Evans, W. Biochemistry of the bacterial catabolism of aromatic compounds in anaerobic environments.
		Tschech, A. and Fuchs, G. Anaerobic degradation of phenol by pure culture of newly isolated denitrifying pseudomonads.
	ijs.sgmjournals.org /cgi/content/full/53/1/147 (2151 words)

	Nobel Prize in Chemistry 1910 - Presentation Speech
		He had further proved that terpene compounds very easily undergo changes when in contact with even the most ordinary reagents and are transformed into each other, which makes investigations in the field of terpene chemistry especially difficult and delicate.
		Organic chemistry, during the decade that followed, was characterized by the study of the so-called alicyclic compounds, among which the terpenes and the closely related types of camphor with their derivatives played the most important part.
		For this reason the alicyclic series has, since the middle of the eighties, assumed such size and importance as to make it the equal of the other three main series within organic chemistry.
	nobelprize.org /chemistry/laureates/1910/press.html (873 words)

	Module-Line Code <UNIT3.ALL> DOCUMENT Document 1 of 1 (Site not responding. Last check: )
		Alicyclic chemistry - effect of ring size on the stability of alicyclic compounds; types and causes of strain.
		Methods for the synthesis of alicyclic compounds with rings of 3-20 carbon atoms: intramolecular carbanion condensation reactions, the acyloin and related reactions.
		Conformation in alicyclic compounds: effects of conformation on rate and outcome of reactions in cyclohexane derivatives; differences between reactions of alicyclic compounds and their acyclic counterparts.
	www.unl.ac.uk:9999 /SEARCH/BASIS/unit3/all/Document/DDW?W=CODE='CR224' (558 words)

	CHAPTER 5
		The compounds which can be correlated without inverting the chiral center are named D (capital D), those correlated to its enantiomer are designated as L (capital L).
		The chirality of such compounds is determined by determining the screw sense of the helix.
		In compounds in which two or more chiral ligands of the central atom are constitutionally identical but have the opposite configuration the central atom is formally chiral because it has four different ligands (even though the difference is only in ligand configuration).
	tigger.uic.edu /~kbruzik/text/chapter5.htm (1377 words)

	Chemical Molecule Library - Glossary
		Bronze is an alloy of copper and tin and brass on of copper and zinc.
		An amine is a distinctive smelling organic compound with one or more of the hydrogen atoms in ammonia replaced by organic groups.
		The "cis" compound is the one with the groups on the same side of the bond, and the "trans" has the groups on the opposite sides.
	www.ch.ic.ac.uk /vchemlib/mol/glossary/.index.html (4708 words)

	Learn more about Organic chemistry in the online encyclopedia. (Site not responding. Last check: )
		Organic chemistry is the branch of chemistry concerned with the study of carbon-containing molecules known as organic compounds (except carbon dioxide and monoxide).
		The reason that there are so many carbon compounds is that carbon has the ability to form many carbon chains of different lengths, and rings of different sizes (catenation).
		A lot of carbon compounds are extremely sensitive to heat, and generally decompose below 300'C. They tend not to be so soluble in water compared to many inorganic salts.
	www.onlineencyclopedia.org /o/or/organic_chemistry_1.html (288 words)

	What Is Aromaticity?
		If you had been taught only about aliphatic and alicyclic compounds and were then suddenly presented with the classic formula of benzene and asked to predict its chemical properties, you would almost certainly get them wrong.
		This compound showed the aromatic properties expected of it, both chemically and spectroscopically, and, unlike tropone, it really was a zwitterionic non-benzenoid aromatic compound, dipole moment = 13.5D.
		These compounds have provided us with more than 40 years of both fun and interesting chemistry, forever turning up unexpected but highly entertaining chemistry, and are still continuing to do so.
	pubs.acs.org /cgi-bin/abstract.cgi/jcisd8/1996/36/i03/html/ci950158g.html (3831 words)

	Class Definition for Class 585 - CHEMISTRY OF HYDROCARBON COMPOUNDS
		At the heart of this class is the pure compound which consists of carbon and hydrogen and no other element and which has a definite empirical formula and an unambiguous structural formula.
		As for category D, a process for manufacturing a composition or a chemical compound generally is provided for in the class which would provide for the composition or compound, per se, were it to be claimed.
		Where no non-hydrocarbon organic compounds are disclosed and a hydrocarbon compound is separated or purified or a hydrocarbon hydrate is formed, placement is proper in Class 585, especially subclasses 812+.
	www.uspto.gov /go/classification/uspc585/defs585.htm (5630 words)

	Chapter Ten
		The chain compounds may be further classified on the basis of the individual carbon-to-carbon bonds.
		Essentially we are building the series of compounds by removing a hydrogen atom from one of the carbon atoms and adding - CH - to the chain and then replacing the hydrogen.
		In the cyclic compound symbols, a carbon atom is understood to be at the intersection of each pair of straight lines.
	www.3rd1000.com /chptr10.htm (2970 words)

	Chemistry Tutorial: Basic Concepts of Organic Chemistry: Classification of organic compounds (Site not responding. Last check: )
		Organic compounds containing one or more fused or isolated benzene rings and their functinalized derivatives are called benzenoids or aromatic compounds, eg benzene, toluene, naphthalene, anthracene etc.
		In naming the organic compounds containing one functional group a suffix known as secondary suffix is added to the primary suffix (giving number of carbon atoms in the chain) to indicate the nature of the functional group.
		Most of these compounds are better known by their common and historical names.
	tutors4you.com /chemorganicbasics.htm (477 words)

	McGraw-Hill AccessScience: Organic chemistry (Site not responding. Last check: )
		The term organic was early applied to compounds derived from plant and animal sources.
		Until about 1830 it was held by some that organic compounds contained some special quality, or vital force.
		This notion was dispelled, but the term organic remained and became broadened to include carbon compounds in general.
	www.accessscience.com /Encyclopedia/4/47/Est_475100_frameset.html (150 words)

	Class 585: CHEMISTRY OF HYDROCARBON COMPOUNDS / U.S. Patent Classification Definitions
		Subject matter wherein an alicyclic compound having olefinic unsaturation in the ring or in a side-chain is condensed with itself to form a compound having more than one ring.
		Subject matter where one component of the catalyst is a compound of an alkali metal or alkaline earth metal, e.g., lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, or radium.
		The hydrogen acceptor may be an element of a compound, the compound being a hydrocarbon or a nonhydrocarbon.
	www.uspto.gov /web/offices/ac/ido/oeip/taf/def/585.htm (10773 words)

	nbm21
		The properties of the various ring compounds are dependent to a considerable degree on this question as to whether the members of the rings are restricted to certain definite positions, or have a substantial range of variability within which they can adjust to the requirements for combination.
		This versatility is compounded by the fact that in the rings, as in the chains, the order of sequence of the groups has a definite effect on the properties of the compound.
		This theoretical composition and structure are in full agreement with the composition of the observed compound known as ethyl alcohol, and with the structure of that compound as deduced from physical and chemical observation and measurement.
	www.reciprocalsystem.com /nbm/nbm21.htm (6207 words)

	University Libraries
		Gmelin is the authoritative work of reference in the fields of inorganic chemistry and compounds, including organometallic compounds, and physical chemistry.
		Covers the most frequently used physical and chemical data of organic compounds and is an extensive source of spectral data.
		Coverage encompasses a a wide range of organic compounds including hydrocarbons, oxygenates, halogenates, nitrogenates, sulfer compounds, and silicon compounds.
	www.libraries.uc.edu /libraries/chem-bio/indexes/print.html (1044 words)

	Fluorescence (Site not responding. Last check: )
		When compounds having specific functional groups are excited by shorter wavelength energy and emit higher wavelength radiation which called fluorescence.
		Also, aliphatic and alicyclic compounds with carbonyl groups and compounds with highly conjugated double bonds fluoresce, but usually to a lesser degree.
		For example, in the very important polynuclear aromatic chromatogram the excitation and emission wavelengths were 280 and 340 nm, respectively, for the first 6 components, and then changed to the respective values of 305 and 430 nm; the latter values represent the best compromise to allow sensitive detection of compounds.
	hplc.chem.shu.edu /NEW/HPLC_Book/Detectors/det_flur.html (372 words)

	[No title]
		Clearly, the presence of the double bonds in the alicyclic rings, B and C, prevent these rings from attaining the true chair or boat conformations which are possible in a similar fully hydrogenated ring system.
		Rapoport and coworkers ([12]) have found that certain alcohols of the dihydrocodeine series are readily oxidizable to ketones by means of the benzophenone-potassium t-butoxide system, whereas certain isomeric compounds are, for all practical purposes, not oxidized.
		double bond in the unhydrogenated compounds does not change their molecular shape to the extent that conformational analysis fails as a tool of diagnostic importance.
	www.unodc.org /unodc/pt/bulletin/bulletin_1954-01-01_1_page005.html?print=yes (2356 words)

	Amazon.com: Alicyclic (Site not responding. Last check: )
		An introduction to organic chemistry: Aliphatic and alicyclic compounds by E. David Morgan (Unknown Binding - 1975)
		Alicyclic Compounds Part A: Monocarbocyclic Compounds to and Including Five Ring Atoms (Rodd's Chemistry of Carbon Compounds.
		Alicyclic Compounds Part D: Steroids (Rodd's Chemistry of Carbon Compounds.
	www.amazon.com /s?ie=UTF8&keywords=Alicyclic&index=blended&page=1 (296 words)

	Organic chemistry at AllExperts
		It is the scientific study of the structure, properties, composition, reactions, and preparation (by synthesis or by other means) of chemical compounds of carbon and hydrogen, which may contain any number of other elements, such as nitrogen, oxygen, halogens, and more rarely phosphorus or sulfur
		Because of the difficulty due to the very large number and variety of organic compounds, chemists realized early on that the establishment of an internationally accepted system of naming organic compounds was of paramount importance.
		Because many organic compounds have relatively low boiling points and/or dissolve easily in organic solvents there exist many methods for separating mixtures into pure constituents that are specific to organic chemistry such as distillation, crystallization and chromatography techniques.There exist several methods for deducing the structure an organic compound.
	en.allexperts.com /e/o/or/organic_chemistry.htm (2688 words)

	CHAPTER III
		The series continues: hexane (6C), heptane (7C), octane (8C), nonane (9C), decane (10C), etc. This is the simplest homologous series of organic compounds, called the normal alkanes or sometimes the normal paraffins.
		A compound need only have one ring to be considered alicyclic, regardless of whether there are aliphatic chains attached to it.
		Alicyclic compounds are often given the prefix, "cyclo".
	www.ecs.umass.edu /cee/reckhow/courses/572/572bk3/572BK3.html (2154 words)

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