Carbonylation of Benzyl Halides Over Two‐Phase Catalyst of Iron Pentacarbonyl
作者:
Chau‐Ban Ou,
Ling‐Kang Liu,
期刊:
Journal of the Chinese Chemical Society
(WILEY Available online 1985)
卷期:
Volume 32,
issue 1
页码: 23-27
ISSN:0009-4536
年代: 1985
DOI:10.1002/jccs.198500005
出版商: WILEY‐VCH Verlag
关键词: two‐phase catalysis;iron pentacarbonyl;benzyl halides
数据来源: WILEY
摘要:
AbstractCarbonylation of benzyl halides to phenylacetic acid was studied in a two‐phase system with iron pentacarbonyl as the catalyst precursor. The solutions consisted of a benzyl halide and iron pentacarbonyl in benzene and tetrabutylammonium hydrogen sulfate in aqueous sodium hydroxide. Stirring under carbon monoxide readily produced phenylacetic salts in aqueous phase which were then acidified and extracted with ether. The yields of phenylacetic acid from benzyl iodide and from benzyl bromide were similar at a evel of about 50percnt;, that of the latter being higher by 1%. The yield from benzyl chloride was far less, at a level of only 21%. The rate as studied with gas chromatography was found to decrease in the order benzyl iodide>benzyl bromide>benzyl chlorid
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