Synthesis

First triphenylphosphine promoted reduction of maleimides to succinimides

B Pal, PK Pradhan, P Jaisankar, VS Giri

Index: Pal, Bikash; Pradhan, Prasun K.; Jaisankar, Parasuraman; Giri, Venkatachalam S. Synthesis, 2003 , # 10 p. 1549 - 1552

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Citation Number: 9

Abstract

Abstract Triphenylphosphine (TPP) in refluxing methanol effectively reduces maleimides 1a- g to the corresponding succinimides 2a-g in good yields. It was observed that some maleimides obtained from aromatic halogen compounds 1h-j were transformed into the corresponding succinamic acid methyl esters 3a-c by this reaction.

~73%

~55%

~74%

~69%

~56%

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