Aliphatic and aromatic acetals are easily and efficiently converted to the corresponding nitriles by reaction with hydroxylamine hydrochloride in refluxing absolute ethanol.
脂肪族和芳香族缩醛在回流的无水乙醇中,可通过与盐酸羟胺反应,容易且高效地转化为相应的腈类化合物。
<i>m</i>-CPBA Mediated Metal Free, Rapid Oxidation of Aliphatic Amines to Oximes
作者:Vilas V. Patil、Eknath M. Gayakwad、Ganapati S. Shankarling
DOI:10.1021/acs.joc.5b01740
日期:2016.2.5
An efficient, rapid oxidation of various aliphatic amines to oximes using m-CPBA as an oxidant in ethyl acetate is described. High conversion (100%) with >90% oxime selectivity is achieved at room temperature under catalyst-free conditions. Mild reaction conditions along with an easy work up procedure offer lower byproduct formation and high selectivity for oximes in good yield and purity.
Surface-Mediated Reactions. 9. Selective Oxidation of Primary and Secondary Amines to Hydroxylamines<sup>1</sup>
作者:John D. Fields、Paul J. Kropp
DOI:10.1021/jo0002083
日期:2000.9.1
OXONE over silica gel or, in some cases, alumina has been found to oxidize the primary and secondaryamines 3 selectively to the corresponding hydroxylamines 4, in either the presence or absence of a solvent. Treatment of Boc-protected L-lysine (6) under the latter conditions afforded hydroxylamine 7 in excellent yield. The trialkylamine 1a and pyridine (1b), in which selectivity is not an issue, were
Hydroxylamine Reactions with Peroxide Products of Alkenes Ozonolysis
作者:Yu. V. Legostaeva、L. R. Garifullina、I. S. Nazarov、N. M. Ishmuratova、G. Yu. Ishmuratov
DOI:10.1134/s107042801808002x
日期:2018.8
ozonolysis products obtained from linear and cyclic alkenes with hydroxylamine prepared in situ from NH2OH·HCl by hydrogen chloride neutralization with sodium acetate. A one-pot reactions sequence was performed: alkene oxidation with ozone → reduction to a carbonyl compound with hydroxylamine → condensation of the carbonyl compound with hydroxylamine providing a possibility of direct transformation of alkenes
Highly efficient and stable peracid for rapid and selective oxidation of aliphatic amines to oximes
作者:Vilas V. Patil、Eknath M. Gayakwad、Ganapati S. Shankarling
DOI:10.1039/c5nj00801h
日期:——
A novel, transition-metal free, rapid approach for selective oxidation of aliphatic and benzylic amines to oximes is described. The dodecanebis(peroxoic acid)–DMF combination efficiently oxidizes various aliphaticamines at 50 °C temperature to give 100% conversion in 20 min with high oxime selectivity. The peroxy acid used here shows exceptional stability at room temperature and is non-shock sensitive