Reaction of magnesium carbenoids with N-lithio arylamines: a novel method for generation of non-stabilized α-amino-substituted carbanions and a new synthesis of α-amino acid derivatives
作者:Tsuyoshi Satoh、Atsushi Osawa、Atsushi Kondo
DOI:10.1016/j.tetlet.2004.07.069
日期:2004.8
with a Grignard reagent at low temperature afforded magnesium carbenoids in quantitative yields. The magnesium carbenoids were found to be reactive with N-lithio alkylamines and N-lithio arylamines. The reaction with N-lithio alkylamines afforded an olefin, which was derived from dimerization of the magnesium carbenoid, in moderate yield. The reaction with N-lithio arylamines gave the adducts, α-amino-substituted
A new method for generation of non-stabilized α-amino-substituted carbanions by the reaction of magnesium carbenoids with N-lithio arylamines: their reactivity and a new synthesis of α-amino acid derivatives
the α-amino-substituted carbanions with some electrophiles was investigated and it was found that ethyl chloroformate reacted to give α-amino acid derivatives in good yields. As a whole, a new method for one-pot, three-component combined synthesis of α-amino acid derivatives from aryl 1-chloroalkyl sulfoxides was realized.
Satoh, Tsuyoshi; Motohashi, Shigeyasu; Yamakawa, Koji, Chemical and pharmaceutical bulletin, 1988, vol. 36, # 3, p. 1169 - 1173
作者:Satoh, Tsuyoshi、Motohashi, Shigeyasu、Yamakawa, Koji
DOI:——
日期:——
SATOH, TSUYOSHI;MOTOHASHI, SHIGEYASU;YAMAKAWA, KOJI, CHEM. AND PHARM. BULL., 36,(1988) N 3, 1169-1173
作者:SATOH, TSUYOSHI、MOTOHASHI, SHIGEYASU、YAMAKAWA, KOJI
DOI:——
日期:——
Generation of magnesium carbenoids from 1-chloroalkyl phenyl sulfoxides with a Grignard reagent and applications to alkylation and olefin synthesis
作者:Tsuyoshi Satoh、Atsushi Kondo、Jun Musashi
DOI:10.1016/j.tet.2004.04.063
日期:2004.6
Treatment of 1-chloroalkyl phenyl sulfoxides with a Grignard reagent at low temperature gave magnesium carbenoids in quantitative yields. The generated magnesium carbenoids were found to be stable at lower than −60 °C for long periods of time and are reactive with Grignard reagents to give alkylated products. The reaction of the generated magnesium carbenoids with various kinds of lithium α-sulfonyl