in tetrahydrofuran reaction of Me2Sn(CCMe)2 with (Ph2PCH2PPh2)PtCl2 in THF (N2); concn. of the soln., addn. of hexane or pentane and cooling, filtering of the formed ppt., washing with hexane and drying at room temp. in vacuo;

in tetrahydrofuran addn. of Me2Sn(CCMe)2 to a soln. of (Ph2PC2H4PPh2)PtCl2 in THF and refluxing for 4 h; concn. of the clear soln. up to beginning turbidity, addn. of hexane orpentane and cooling on an ice bath, filtering off the ppt., repeated washings with hexane and drying at room temp. in vacuo;

in tetrahydrofuran reaction of Me2Sn(CCMe)2 with (Ph2PC2H4PPh2)PtCl2 in THF (N2); concn. of the soln., addn. of hexane or pentane and cooling, filtering of the formed ppt., washing with hexane and drying at room temp. in vacuo;

in hexane suspending Me2Sn(CCCH3)2 (0.25M) in hexane (100ml), addn. of Me2SnCl2 (0.288M) and 3h heating at 65°C; cooling down at -78°C, addn. of triethylborane (0.53M), warming up soln. first at room temp., then2h heating at 65°C;; removal of hexane and excess triethylborane in vacuum, distn. of ppt.;;

in dichloromethane a soln. of (CH3)2Sn(CCCH3)2 (4 mmol) in CH2Cl2 was cooled to -78°C and ((CH3)2CH)3B (4 mmol) added in one portion; the mixt. was warmed up to room temp. and stirred for 15 h (exclusion of water, under dry N2);; the solvent was removed in vac.; the remaining oils purified by distn. at 5E-2 torr; product mixt. obtained;;

暂无反应条件数据