Azo anions in synthesis: α-amino carbanion equivalents from t-butyldiphenyl-methylhydrazones
作者:Jack E. Baldwin、Robert M. Adlington、Ian M. Newington
DOI:10.1039/c39860000176
日期:——
α-Aminocarbanionequivalents (NH2) and α-hydrazino anionequivalents (NHNH2) are readily accessible from the C-alkylation products of t-butyldiphenylmethylhydrazones; these azoalkanes can be efficiently transformed into amines, hydrazines, and also alkanes under mild reaction conditions.
作者:Jack E. Baldwin、Robert M. Adlington、Jeffery C. Bottaro、Jayant N. Kolhe、Ian M. Newington、Matthew W.D. Perry
DOI:10.1016/s0040-4020(01)87648-1
日期:1986.1
The lithium salts of trityl- and diphenyl-4-pyridylmethyl-hydrazones of both aldehydes and ketones react with electrophiles (alkyl halides, aldehydes, ketones, crotonates) at low temperature to form C-trapped azo compounds ; these Intermediates decompose homolytically with loss of nitrogen below room temperature and can be diverted in a synthetically useful way to alkanes, alkenes, alcohols or saturated
Radical deoxygenation of tertiary alcohols via trifluoroacetates
作者:Joong-Gon Kim、Dae Hyan Cho、Doo Ok Jang
DOI:10.1016/j.tetlet.2004.02.109
日期:2004.4
Trifluoroacetates of tertiaryalcohols undergo deoxygenation by Ph2SiH2 in the presence of (tBuO)2 in excellent yields of the deoxy products without affecting the stereochemistry at β-carbon.