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2- Aminopentane

Alkylpyrazines are prepared by two main procedures, (1) self-condensation of a-amino carbonyl compounds and (2) alkylation (or acylation) of pyrazines at nuclear or side chain carbons. Condensation of aminoacetone hydrochloride (491) in the presence of the corresponding aldehyde gave the 3- -alkyl-2,5-dimethylpyrazines 20e and 20g (Scheme 61) 36). 2,5-Dimethylpyrazine 20a was prepared from hydroxyiminoacetone (493) by reduction with tin and hydrochloric acid (Scheme 61) 145). 3-Ethyl-2,6-dimethylpyrazine (21b) was prepared along with 20a and 495 by condensation of aminoacetone hydrochloride (491) with 2-aminopentan-3-one hydrochloride (494) in the presence of sodium ethoxide (Scheme 61) 36). [Pg.285]

The anion formed from the acetyl methyl group under reaction conditions then attacks one of the carbethoxy groups to form a cylohexanone to give (74-4) as the isolated product. The free acid obtained on hydrolysis of the ester decarboxylates to give the (3-diketone (74-5). In a classic apphcation of the Knorr pyrrole synthesis, the diketone is then allowed to react with 2-aminopentan-3-one. Since the latter is unstable, it is generated in situ by reduction of the nitrosation product from diethyl ketone. There is thus obtained piquindone (74-6) [76], a compound that displays antipsychotic activity. [Pg.627]

SYNS 2-AMINOPENTANE DIAETHYLAMIN (GERMAN) N,N-DIETHYLAMINE DIETILAMINA (ITALIAN) DWUETYLOAMINA (POLISH) N-ETHYL-ETELLNAMINE... [Pg.480]

Synonyms 2-Aminopentane DEA DEN DETN Diethamine N,N-Diethy-lamine N-Ethylethanamine Classification Saturated aliphatic amine Empirical C4H11N Formula (C2Hs)2NH... [Pg.1072]

Amyl alcohol, active. See 2-Methyl-1-butanol Amyl alcohol, commercial. See Fusel oil refined Amyl alcohol, normal. See n-Amyl alcohol Amyl alcohols, mixed. See Fusel oil refined Amylaldehyde. See n-Valeraldehyde Amylamine n-Amylamine. See Pentylamine s-Amylamine. See 2-Aminopentane t-Amylamine... [Pg.292]

Pentanamine. See 2-Aminopentane 1-Pentanamine, N-pentyl. See Di-n-amylamine Pentandioic acid. See Glutaric acid Pentan-2,4-dione. See Acetylacetone Pentane (INCI). See n-Pentane... [Pg.3241]

Acetic anhydride Acrolein Aluminum chloride anhydrous 2-Aminopentane p-Anisic acid p-Anisic acid Bis (chloromethyl) ether Cetethyidimonium bromide Cetrimonium bromide Cetylpyridinium bromide Cobalt chloride (ous) Cyclohexane Cyclopentane Diacetone alcohol Dimethyl sulfate... [Pg.5600]

Yoshida K, Shigeta T, Furuta T, Kawabata T (2012) Catalyst-controlled reversal of chemo-selectivity in acylation of 2-aminopentane-1.5-diol derivatives. Chem Commun 48 6981... [Pg.230]

See other pages where 2- Aminopentane is mentioned: [Pg.266]    [Pg.155]    [Pg.93]    [Pg.104]    [Pg.12]    [Pg.13]    [Pg.15]    [Pg.318]    [Pg.318]    [Pg.112]    [Pg.925]    [Pg.155]    [Pg.5095]    [Pg.1509]    [Pg.793]    [Pg.266]    [Pg.741]    [Pg.78]    [Pg.415]    [Pg.11]    [Pg.12]    [Pg.14]    [Pg.272]    [Pg.272]    [Pg.273]    [Pg.530]    [Pg.200]    [Pg.61]    [Pg.89]    [Pg.266]    [Pg.5094]    [Pg.563]    [Pg.741]    [Pg.66]    [Pg.214]    [Pg.918]    [Pg.234]    [Pg.234]    [Pg.6575]    [Pg.6971]    [Pg.189]    [Pg.329]   
See also in sourсe #XX -- [ Pg.329 ]



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