作者:Derek H.R. Barton、Jean-Pierre Finet、William B. Motherwell、Clotilde Pichon
DOI:10.1016/s0040-4020(01)88167-9
日期:1986.1
A catalytic bismuth system (Ph3Bi-NBS-K2CO3-CH3CN with 1% water) for the cleavage of α-glycols is shown to have a different mechanism from the cyclic process observed with the stoichiometric BiV reagents previously studied. The catalytic system cleaves cis- and trans-decalin-9,10-diols at nearly the same rate, whereas the stoichiometric system does not cleave the trans-9,10-diol. Evidence for the insertion
已显示,用于裂解α-二醇的催化铋体系(Ph 3 Bi-NBS-K 2 CO 3 -CH 3 CN含1%的水)与先前使用化学计量Bi V试剂观察到的循环过程具有不同的机理。研究过。催化系统以几乎相同的速率裂解顺式和反式十氢化萘-9,10-二醇,而化学计量系统不裂解反式-9,10-二醇。已确证了将三苯基铋插入次溴酸盐键中,然后使如此形成的Bi V中间体碎裂的证据。