Pyridinium p-toluenesulfonylmethylide as a formyl anion equivalent

RA Abramovitch, SS Mathur, DW Saunders…

Index: Abramovitch, Rudolph A.; Mathur, Suchet S.; Saunders, Daniel W.; Vanderpool, Danny P. Tetrahedron Letters, 1980 , vol. 21, p. 705 - 708

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Citation Number: 3

Abstract

Abstract. Pyridinium e-toluenesulfonylmethylide serves as a formyl anion equivalent and, in the presence of an alcohol, undergoes 1, 4-addition to N-substituted maleimides to give alkoxy-(or aryloxy)-methylenesucznimides. The protected aldehyde group can be liberated readily.