作者:T.Michael Bockman、John F. Garst、Ferenc Ungváry
DOI:10.1016/s0022-328x(99)00196-5
日期:1999.7
intermediate. However, when phenylacetylene is in large excess, neither ethylbenzene, 2-phenylpropanal, nor styrene is formed in more than trace quantity. Instead, a compound is formed whose spectral properties suggest that it is an alkyl- or acylcobalt carbonyl containing a 1-phenylethenyl group. This compound reacts with HCo(CO)4 to give styrene. CIDNP suggests that the reaction of phenylacetylene with
在室温下于C 6 H 6或己烷中,在CO气氛下,过量的HCo(CO)4与苯乙炔反应生成乙苯和2-苯基丙醛,这些产物是由苯乙烯的相似反应得到的。该证据和其他证据表明,苯乙烯是一种中间体。但是,当苯乙炔大量过量时,乙苯,2-苯丙醛和苯乙烯都不会以超过痕量的量形成。取而代之的是,形成一种化合物,其光谱性质表明它是含有1-苯基乙烯基的烷基或酰基钴羰基。该化合物与HCo(CO)4反应生成苯乙烯。CIDNP表明苯乙炔与HCo(CO)4的反应通过自由基对[1-苯基乙烯基··Co(CO)4 ]进行反应。