The pathway of the palladium catalysed methoxycarbonylation of
ethene to methyl propanoate has been shown to occur via a hydride
rather than a methoxycarbonyl cycle and all the intermediates in
this cycle have been unambiguously identified by multinuclear NMR
spectroscopy and 13C-labelling.
通过多核核磁共振光谱及13C标记技术,已经明确表明
乙烯通过
钯催化的甲氧羰基化反应生成
丙酸甲酯的途径是通过
氢化物循环而非甲氧羰基循环,并且这一循环中的所有中间体都已被无歧义地鉴定出来。