Transmetallation of Pb(OAc)4 with R2Hg (1), followed by treatment with HCl in Et2O, provided RPbCl3 (2), the first kinetically stabilized monoorganolead trihalide that resists reductive elimination under ambient conditions. The kinetic stabilisation relies on an intramolecularly coordinating O‐donor substituent (R=6‐Ph2P(O)‐Ace‐5‐). The gram‐scale preparation of 2 was key for the synthesis of unsymmetrically
用R 2 Hg(1)对Pb(OAc)4进行
金属转移,然后在Et 2 O中用HCl处理,得到RPbCl 3(2),这是第一种在环境条件下抵抗还原消除的动力学稳定的单有机三卤化物。动力学稳定取决于分子内配位的O-供体取代基(R = 6-Ph 2 P(O)-Ace-5-)。的克规模制备2是为不对称取代diaryllead二
氯化物的合成关键RR'PbCl 2(3,R'= Ph值;图3b,R'= 4-MeOC 6 H ^ 4; 3 c,R'= 4-Me 2 NC 6 H 4)。