| 摘要 |
<p>A process for the production of a carboxylic acid which process comprises contacting a liquid reaction composition comprising an alcohol and/or a reactive derivative thereof, a hydrocarbyl halide co-catalyst and optionally water with carbon monoxide, optionally with hydrogen at a molar ratio of hydrogen : carbon monoxide of less than 1 : 10, in the presence of a cobalt catalyst precursor having the following structural formula (I) : <CHEM> wherein : the R groups are independently hydrogen, alkyl, aryl, substituted alkyl or aryl; the R groups may be the same or different to each other; R<1> is a hydrogen, alkyl, aryl, substituted alkyl or aryl or a bridging group to X; and X is a two electron donor which may optionally be linked to the cyclopentadienyl group via R<1> and the Co may additionally be bound to a Z group such that Z is halide, in which case in place of the CO group there may be an acyl group of formula R<4>CO in which R<4> is hydrogen, alkyl, aryl or substituted alkyl or aryl.</p> |
