Darzens synthesis of 2,2-dichloro-3-(2-furyl)-3-hydroxypropionic acid derivatives
摘要:
Esters and amides of 2,2-dichloro-3-(2-furyl)-3-hydroxypropionic acid were prepared by the reaction of furfural with dichloroacetic acid derivatives under the conditions of the Darzens condensation. The structures of the reaction products were confirmed by their H-1 NMR and IR spectra and chemical transformations.
Dimethyl dichloromalonate as a new synthetic equivalent of methyl dichloroacetate in the Darzens condensation
作者:E. A. Berdnikov、V. A. Mamedov
DOI:10.1007/bf00714435
日期:1995.8
Dimethyl dichloromalonate reacts with aldehydes in the presence of sodium methoxide to form alpha-chloropyruvates, alpha-chloroglycidates, or alpha,alpha-dichlorohydrins depending on the nature of the aldehyde.
SHONO, TATSUYA;KISE, NAOKI;MASUDA, MITSUHARU;SUZUMOTO, TAKESHI, J. ORG. CHEM., 1985, 50, N 14, 2527-2533