Tetrahedron Letters p. 2449 - 2452 (1991)
Update date:2022-07-29
Topics:
Srebnik, Morris
(Z)-Trialkenylboranes, (R1HC=CR2)3B, easily prepared by hydroboration of the corresponding alkynes with BMS in THF, rapidly react with commercially available diethylzinc in hydrocarbon solvents, in either a 1:3 or 2:3 ratio of organoborane to organozinc, to yield an equilibrium mixture, favoring the migration of alkenyl groups from boron to zinc.Addition of an aldehyde to the 2:3 reaction mixture, in the presence of 10 molpercent N-methylpiperidine, results in the exclusive transfer of both alkenyl groups from zinc, furnishing diastereomerically pure trisubstituted double bonds in allylic alcohols in good to excellent yields.
View MoreTIANJIN NORTH JINHENG CHEMICAL PLANT.
Contact:0086-22-59952083
Address:DongShigu Country In JiXian TianJin China
Landz International Company Ltd.
Contact:0086-21-58891610
Address:985 Dongfang Road, Pudong, Shanghai 200122 China
Cangzhou Senary Chemical Science-tech Co., Ltd
Contact:+86-317-3563899, 3563699
Address:168 Jinde Road, Cangzhou, Hebei, China
KAIYUAN CHEMICAL COMPANY LIMITED.
website:http://www.kaiyuanchem.com
Contact:+86-22-59891255/66/77
Address:B-2205, Kuangshi International Building, Yingbin Road, XiangLuo Bay Business District, Binhai New area, Tianjin, China.
Zibo Fuxi'er Chemical Co.,Ltd (Shanxian Fuxi'er Chemical Co.,Ltd)
Contact:+86-533-2091422
Address:Eastern 4 on the 3th Road ,Liangxiang Industrial Park, Zibo city ,Shandong,China
Doi:10.1002/adsc.201100410
(2011)Doi:10.1016/S0040-4039(00)95009-3
(1985)Doi:10.1039/c1ob05996c
(2011)Doi:10.1021/ja2102373
(2012)Doi:10.1002/hlca.19910740316
(1991)Doi:10.1134/S1070363211100100
(2011)