作者:Claude Morpain、Jean Jacques Perie
DOI:10.1016/s0040-4020(01)96423-3
日期:1985.1
The stereochemistry of the reaction of silver benzoates on chiral di-O-aroyl-1,2 iododeoxy-3-sn-glycerols has been reinvestigated. The reaction proceeds either with or without neighbouring group participation, depending on : - possible electrophilic assistance by the silver ion to the ionisation of the substrate (occuring only with dissociated silver salts), - ability of substituants R1 and R2 on the
苯甲酸酯银在手性二-O-芳酰基-1,2-碘脱氧-3- sn-甘油上反应的立体化学已被重新研究。该反应在有或没有相邻基团参与的情况下进行,具体取决于:-银离子对底物电离的可能的亲电助剂(仅与解离的银盐发生),-底物上取代基R 1和R 2的反应能力稳定正电荷。底物中的R 1和R 2电子释放基团的重排最少,银盐未解离或弱解离并带有良好的亲核试剂。在一种情况下,观察到区域和立体特异性反应。