Transacylation of alpha-aryl-beta-keto esters.
The acyl group of an alpha-aryl-beta-keto ester was readily transferred to N-, O-, and S-nucleophiles. The transacylation from arylated diethyl 3-oxoglutarate to amines led to unsymmetrical malonic acid amide esters in high yields. The present reaction proceeded under mild conditions without formation of detectable byproducts. Only simple experimental manipulations were required. This reaction was also found to be sensitive to steric factors, which enabled the chemoselective monoacylation of diamines and amino alcohols without any modifications such as protection.
Nishiwaki
Nagatoshi
N
Department of Chemistry, Osaka Kyoiku University, Asahigaoka 4-698-1, Kashiwara, Osaka 582-8582, Japan.
Nishida
Daisei
D
Ohnishi
Tetsuya
T
Hidaka
Fumie
F
Shimizu
Satoru
S
Tamura
Mina
M
Hori
Kazushige
K
Tohda
Yasuo
Y
Ariga
Masahiro
M