3-Methoxybuta-1,3-dienone(tricarbonyl)iron. A novel carbonylation and a stabilised vinylketen
Abstract
The reaction of 2-methoxyallyl chloride (1a) and nonacarbonyldi-iron affords 3-methoxybuta-1,3-dienone(tricarbonyl)iron (4), while the corresponding bromide (1b) and iodide (1c) form the π-allyl complexes (2b) and (2c), respectively; 2-methoxy-π-allyl(tricarbonyl)iron chloride (2a) can be obtained from 1-chloro-2-methoxypropene (3a) and nonacarbonyldi-iron.