Journal
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
Volume 73, Issue 7, Pages 1605-1613Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.73.1605
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Ethyl N-Boc- and N-Z-alpha-tosylglycinates, which were readily available from t-butyl or benzyl carbamate, ethyl glyoxylate, and sodium p-toluenesulfinate in formic acid, were reacted with a variety of nitro compounds in the presence of a base to afford the corresponding alpha,beta-didehydroamino acid derivatives in good yields. Eventually, it was found that the (Z)-isomer was predominantly formed in the present method.
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