Synthesis

Facile synthesis of carboxylic anhydrides using 4, 5-dichloro-2-[(4-nitrophenyl) sulfonyl] pyridazin-3 (2H)-one

JJ Kim, YD Park, WS Lee, SD Cho, YJ Yoon

Index: Kim, Jeum-Jong; Park, Yong-Dae; Song Lee, Woo; Cho, Su-Dong; Yoon, Yong-Jin Synthesis, 2003 , # 10 p. 1517 - 1520

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Citation Number: 21

Abstract

Abstract A novel and facile synthesis of carboxylic anhydrides from carboxylic acid using 4, 5- dichloro-2-[(4-nitrophenyl) sulfonyl] pyridazin-3 (2H)-one (2) is presented. Treatment of aliphatic or aromatic carboxylic acids with 2 in the presence of base in organic solvents gave the corresponding anhydrides in good or excellent yields

~92%

~95%

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