2-[[(p-Nitrophenyl) sulfonyl] oxy]-3-keto esters: versatile intermediates for the preparation of 1, 2, 3-tricarbonyl compounds

RV Hoffman, HO Kim, AL Wilson

Index: Hoffman, Robert V.; Kim, Hwa-Ok; Wilson, Anna Lee Journal of Organic Chemistry, 1990 , vol. 55, # 9 p. 2820 - 2822

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Citation Number: 30

Abstract

The excellent leaving ability of the nosylate group and the high, differentiated functional group density in 2-((@-nitrophenyl) sulfonyl) oxy)-3-keto esters, 1, suggested that they might serve as versatile precursors for the synthesis of other 1, 2, 3-trifunctionalized compounds. Reaction of 2-(nosyloxy)-3-keto esters with triethylamine gives 1, 2, 3-tricarbonyl compounds in high yields. The tricarbonyl compound can be reacted, without isolation, with ...

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