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Topic: Primary amine


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  Amine - Wikipedia, the free encyclopedia
Amines are organic compounds containing nitrogen as the key atom in the amine functional group.
Amines have structures resembling ammonia, where one or more hydrogen atoms are replaced by alkyl groups or other groups where the nitrogen is bonded to a carbon atom in the group (groups symbolized by R below).
Aromatic amines are amines in which the nitrogen is connected to an aromatic ring as in anilines.
en.wikipedia.org /wiki/Amine   (728 words)

  
 AMINES - LoveToKnow Article on AMINES   (Site not responding. Last check: 2007-10-09)
Primary amines when heated with alcoholic potash and chloroform:yield isonitriles, which are readily detected by their offensive smell.
The purely aromatic amines result upon heating the primary amines with their hydrochlorides, and, in some cases, by: heating a phenol with a primary amine and anhydrous zinc chloride.
The mixed secondary amines are prepared by the action of alkyl iodides on the primary amines, or by heating salts of the primary amine with alcohols under pressure.
www.1911encyclopedia.org /A/AM/AMINES.htm   (1678 words)

  
 Amine -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-09)
Amines are organic compounds containing (A common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues) nitrogen as the key atom in the amine functional group.
If the reacting amine is a tertiary amine in such a reaction, then a positive (Click link for more info and facts about quaternary ammonium cation) quaternary ammonium cation will be formed along with a negative halide ion.
Aromatic amines are amines in which the nitrogen is connected to an aromatic ring as in (Oily poisonous liquid amine obtained from nitrobenzene and used to make dyes and plastics and medicines) anilines.
www.absoluteastronomy.com /encyclopedia/a/am/amine.htm   (798 words)

  
 Amine Structure & Synthesis
Amines are classified as primary, secondary, or tertiary according to the number of carbons bonded directly to the nitrogen atom.
Since amides are commonly made by the reaction of acid chlorides with an amine, the two step sequence which begins with reacting an amine (or ammonia) with an acid chloride and follows with reduction of the amide using lithium aluminum hydride results in the substitution of an alkyl group on the nitrogen.
Early in the course we studied a reaction between primary amines and ketones or aldehydes which resulted in the replacement of the carbonyl oxygen by the nitrogen of the amine.
chemistry2.csudh.edu /rpendarvis/aminbassyn.html   (1480 words)

  
 Amine   (Site not responding. Last check: 2007-10-09)
Amines are organic compounds containing nitrogen as the key atom in the functional group.
Amines have structures resembling ammonia where one or more hydrogen atoms are replaced by alkyl groups other groups where the nitrogen is bonded a carbon atom in the group (groups by R below).
Aromatic amines are amines in which the is bonded to an aromatic ring (such a benzene ring).
www.freeglossary.com /Amine   (427 words)

  
 AMINES - Online Information article about AMINES
Primary amines heated with carbon bisulphide in alcoholic solution are converted into mustard oils, when the dithiocarbamate first produced is heated with a solution of mercuric chloride.
The purely aromatic amines result upon heating the primary amines ' with their hydrochlorides, and, in some cases, by heating a phenol with a primary amine and anhydrous zinc chloride.
The simplest aromatic monamine is aniline (q.v.), and the simplest mixed amines are mono- and di-methyl aniline.
encyclopedia.jrank.org /ALM_ANC/AMINES.html   (2696 words)

  
 Primary amine functional polymer compositions and coatings - Patent 4427804   (Site not responding. Last check: 2007-10-09)
A monosecondary amine containing blocked primary amine groups is provided by reacting a monosecondary amine containing at least one primary amine group (such as diethylene triamine) with a ketone which is hindered to prevent reaction with secondary amino hydrogen atom (such as methyl isobutyl ketone) while removing water.
In accordance with this invention an amine containing a single secondary amino group and at least one primary amino group is reacted with a hindered ketone to produce a ketimine group by the elimination of water.
The reaction of the hindered ketone with the primary amine functionality is conveniently carried out at moderate temperature with the aid of an acid catalyst with the reaction being encouraged by the removal of water.
www.freepatentsonline.com /4427804.html   (1751 words)

  
 [No title]
Amines are formed from ammonia when one or more of the hydrogen atoms are substituted by alkyl or aryl groups.
Amines are named by naming the attached groups as alkyl or aryl groups and add the word, amine.
Secondary amines are prepared by reacting a primary amine with a halocarbon.
www.siue.edu /~jshen/CH120/CH120CH15.doc   (1451 words)

  
 Phthalonitrile resin from diphthalonitrile monomer and amine - Patent 4408035   (Site not responding. Last check: 2007-10-09)
A phthalontrile resin obtained by admixing a primary amine in an amount from about 1 to about 40 percent of total resin weight with a diphthalonitrile monomer at a temperature from about the melting point of said phthalonitrile monomer to about the decomposition temperature of the resulting resin.
The resin of claim 4 wherein said amine is selected from the class consisting of meta- and para-phenylenediamine, meta- and para-alkylene dianiline, aminophenyl ether, amino phthalonitrile, cyclohexane bis(alkylamine) wherein said alkyl group has from 1 to 10 carbon atoms, alkylamine or alkyldiamine wherein said alkyl group has from 15 to 25 carbon atoms, and aminophenylsulfone.
If voids can be tolerated almost any primary amine can be used if enough of the amine is included to compensate for the loss of the amine or a means is provided to recirculate the vaporized amine back through the polymerizing monomer or the polymerization proceeds under pressure.
www.freepatentsonline.com /4408035.html   (3989 words)

  
 Reductive Amination Review   (Site not responding. Last check: 2007-10-09)
The subsequent reduction of imine to amine is typically accomplished by treating with hydrogen and a suitable hydrogenation catalyst or treating with aluminum-mercury amalgam or via sodium cyanoborohydride.
As the primary amine begins to build up, it may react with the intermediate imine to form an imine which is reduced to secondary amine.
The primary amine (amphetamine) was purified by distillation through a 13-cm column packed with glass helices and obtained in a 52% yield.
www.erowid.org /archive/rhodium/chemistry/reductive.amination.html   (2278 words)

  
 Primary (etc.)
For example, CH Cl (chloroethane or ethyl chloride) is a primary alkyl halide, because the Cl is attached to a primary C. Ouellette 2/e briefly mentions this, p 204.
Amines are not classified by their C atoms, but rather by the N atom.
The terms primary, etc., are used in essentially the same way for nucleic acids as for proteins, discussed in the previous section.
www.geocities.com /Athens/Thebes/5118/obc/primary.htm   (791 words)

  
 Amine   (Site not responding. Last check: 2007-10-09)
Amines are organic compounds containing nitrogen as the keyatom in the amine functional group.
Amines have structures resembling ammonia, whereone or more hydrogen atoms are replaced by alkyl groups or other groups where thenitrogen is bonded to a carbon atom in the group (groups symbolized by R below).
Derivatives of carboxylicacids, such as acyl chlorides,can react with primary or secondary amines to form amides.
www.therfcc.org /amine-22101.html   (324 words)

  
 Primary amine - Hutchinson encyclopedia article about Primary amine   (Site not responding. Last check: 2007-10-09)
Methyl amines have unpleasant ammonia odours and occur in decomposing fish.
Aromatic amine compounds include aniline, which is used in dyeing.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
encyclopedia.farlex.com /Primary+amine   (110 words)

  
 Ketimine-blocked primary amine group-containing cationic electrodepositable resins - Patent 4017438   (Site not responding. Last check: 2007-10-09)
The primary amine groups are incorporated by reacting certain polyamine compounds in which the primary amine groups are blocked by ketimine groups into the acid solubilizable, amine group-containing electrodepositable resins derived from epoxy group-containing resins.
Further, it is possible for the amines to contain other constituents so long as they do not interfere with the reaction of the amine and the epoxy group and are of the nature or employed under the conditions so that they do not gel the reaction mixture.
The amount of amine reacted with the epoxy group-containing material is at least that amount sufficient to render the resin cationic in character, that is, transportable to the cathode when acid solubilized.
www.freepatentsonline.com /4017438.html   (5982 words)

  
 Amines   (Site not responding. Last check: 2007-10-09)
The Amine family is a family of Organic compounds that have at least one sp3 hybridized Nitrogen bonded to as few as one hydrocarbon group and as many as four hydrocarbon groups.
Primary Amines are the most likely to be soluble even if the alkyl group is up to four carbons in length.
Primary amines tend to have the highest boiling points considering the near same size of molecules.
members.aol.com /logan20/amines.html   (728 words)

  
 CHEMISTRY 102
You should be able to define and/or identify the following terms: primary amine biological activity secondary amine primary structure tertiary amine secondary structure amide alpha-helix alpha-amino acid beta-structure peptide bond tertiary structure N-terminal quaternary structure C-terminal subunit isoelectric point conjugated peptide denaturation protein enzyme 2.
You should be able to describe the general properties of amines in terms of their structure.
Primary structure of proteins: sequence of amino acids in the peptide.
virtual.parkland.edu /btreadway/102suplc.htm   (837 words)

  
 Amine - Open Encyclopedia   (Site not responding. Last check: 2007-10-09)
If the reacting amine is a tertiary amine in such a reaction, then a positive quaternary ammonium ion will be formed along with a negative halide ion.
Aromatic amines are amines in which the nitrogen is bonded to an aromatic ring (such as a benzene ring).
The aromatic ring affects the basicity of the amine.
open-encyclopedia.com /Amine   (356 words)

  
 phenylamine (aniline) as an amine   (Site not responding. Last check: 2007-10-09)
It explains why phenylamine is a weaker base than other primary amines, and summarises its reactions with acyl chlorides (acid chlorides), acid anhydrides and halogenoalkanes (haloalkanes or alkyl halides).
Amines are bases because the lone pair of electrons on the nitrogen atom can accept a hydrogen ion - in other words, for exactly the same reason that ammonia is a base.
Amines are bases because they pick up hydrogen ions on the lone pair on the nitrogen atom.
www.chemguide.co.uk /organicprops/aniline/amine.html   (1701 words)

  
 BR&E - Technical Papers - Copyright 2001   (Site not responding. Last check: 2007-10-09)
Since MDEA is a tertiary amine and does not have a hydrogen attached to the nitrogen, the CO reaction can only occur after the CO dissolves in the water to form a bicarbonate ion.
Since the CO reaction rate with the primary and secondary amines is much faster than with MDEA, the addition of small amounts of primary or secondary amines to an MDEA based solution should greatly improve the overall reaction rate of CO with the amine solution.
The use of mixed amine solutions for gas sweetening was investigated using a variety of cases in a standard amine unit as shown in Figure 1.
www.bre.com /technicalpapers/technicalpaper.asp?articlenumber=47   (2788 words)

  
 Products - Biotinylation Reagents - Amine Reactive
Specifically label primary amines (lysine and N-terminus) with biotin, the most common reactive groups found on the surface of proteins.
Reacts with primary amines at pH 7-9 to form a stable amide bond.
It forms a stable amide bond with primary amines, and must be dissolved in organic solvent before use.
www.piercenet.com /Products/Browse.cfm?fldID=010309&Format=Print   (451 words)

  
 BR&E - Technical Papers - Copyright 2001   (Site not responding. Last check: 2007-10-09)
The concept of using amine mixtures is based on utilizing and combining the advantages of the amines in the mixture or of customizing the amine solution to a particular use.
The easiest and least expensive method of switching from a single amine to a mixed amine solution is simply to add the second amine "on the fly," while the unit is operating.
The rich amine loading has increased to 0.56 mole acid gas/1.0 mole amine which could lead to corrosion problems with DEA, and the CO concentration in the sweet gas is as high as 0.42%.
www.bre.com /technicalpapers/technicalpaper.asp?articlenumber=46   (1798 words)

  
 Silicone encapsulated devices - Patent 4592959   (Site not responding. Last check: 2007-10-09)
The article of manufacture recited in claim 1, wherein the primary amine in the formulation is a dialkylaminoalkoxysilane.
While use of these amine containing additives solve the adhesion problem, it has recently been determined that the pot life (the time it takes for the resin formulation to cure, while standing at room temperature, to a degree which prevents its use for its intended purpose) is only several hours.
Upon heating of the heat curable silicone resin, the volatile acid is detached from the amine and substantially evaporates from the formulation.
www.freepatentsonline.com /4592959.html   (1654 words)

  
 Amines   (Site not responding. Last check: 2007-10-09)
If it is a primary amine (–NH) there are two bands in this region; if it is a secondary amine (–NHR) there is one band; if it is a tertiary amine (-NR) there are no bands in this region.
The amine proton(s) show(s) as a broad peak (but not as broad as a carboxylic acid proton peak) from 0.5–3.0 ppm if the amine is aliphatic; 3–5 ppm if the amine is aromatic.
The proton on a carbon adjacent to the amine group is found from 1.5–2 ppm.
orgchem.colorado.edu /hndbksupport/specttutor/amines.html   (169 words)

  
 Ammonia - The Structure of Ammonia.
Ammonia and amines act as Bronsted - Lowry bases (proton acceptors) by virtue of the lone pair of electrons on the nitrogen atom.
Further substitution is possible because the primary amine can compete effectively with ammonia for the haloalkane to generate a dialkylammonium salt.
A high yield of the quaternary ammonium salt is obtained by using a large excess of haloalkane.
www.coursework.info /i/64472.html   (546 words)

  
 esp@cenet claims view
The process as in claim 1, wherein said organic electrophile is covalently attached to an insoluble support matrix during reaction of said organic electrophile with said primary amine.
The process as inclaim 1, wherein said primary amine is covalently bonded to an insoluble support matrix during reaction of said organic electrophile with said primary amine.
The process as in claim1, wherein said primary amine further comprises at least one chiral center, wherein each said chiral center is preserved during reaction of said organic electrophile with said primary amine.
v3.espacenet.com /textclam?DB=EPODOC&IDX=WO0050377&QPN=WO0050377   (600 words)

  
 Method for processing a silver halide color photographic material with a color developer comprising an aromatic primary ...   (Site not responding. Last check: 2007-10-09)
The compound of the present invention (i.e., the compounds capable of releasing aromatic primary amine developing agents) are compounds from which aromatic primary amine developing agents are released or dissociated gradually under the conditions existing in a color developer.
The aromatic primary amine developing agent used in the color developer and the developing agent which is released may be the same or different.
The amount of aromatic primary amine developing agent used is from about 0.1 g to about 20 g, and preferably from about 0.5 g to about 10 g, per liter of the developer.
www.patentstorm.us /patents/5002862.html   (9219 words)

  
 Structural characterization of an amine-terminated hybrid dendrimer: molecular dynamics studies
This molecular dynamics study characterized the biological functionality of dendrimers depending on the location of primary amines in amine-terminated dendrimers as a function of protonation.
The probabilities of the primary amine locations were prepared by in-house program and plotted with Gaussian function.
In the case of protonated amines, the overall values of primary amine locations of POMAM 21 is closer to that of DAB-dendr-(NH, with a distinctive two-peak distribution of primary amines, while PAMAM G3 presented a broader peak of a composition of four Gaussian functions.
www.foresight.org /Conferences/MNT8/Abstracts/Baker   (494 words)

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