Heterocycles

Convenient preparation of 3-methoxycarbonylpyridazines by palladium catalyzed alkoxycarbonylation of pyridazinetriflates

M Rohr, D Toussaint, S Chayer, A Mann, J Suffert…

Index: Heterocycles, , vol. 43, # 7 p. 1459 - 1464

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Citation Number: 13

Abstract

The methoxycarbonylation of several pyridazine-trifluoromethanesulphonates with CO and MeOH is catalyzed by Pd(OAc) ₂ and 1,1 -bis(diphenylphosphino)ferrocene. This method constitutes a mild and efficient homologation of pyridazinones.