Direct transformation of both aliphatic and aromatic aldehydes to the corresponding nitriles, can be easily performed by the reaction of an aldehyde with a slight excess of hydroxylamine hydrochloride, in refluxing acetonitrile and in the presence of 0.5 equivalents of sodium iodide as catalyst.
作者:Giovanni Rojas、Travis W. Baughman、Kenneth B. Wagener
DOI:10.1080/00397910701572456
日期:2007.11
Abstract A synthetic pathway that produces alkyl α,ω‐cyanodiolefins in quantitative yield is described, applying chemistry that is based on simple α‐alkylation of alkyl nitriles. Three amide bases, lithium2,2,6,6‐tetramethylpiperidide, lithium diisopropylamide, and sodium amide, are used to create the α‐carbanions that undergo substitution with various alkylating agents. Optimization leads to essentially