Journal of Organometallic Chemistry p. C11 - C14 (1989)
Update date:2022-08-02
Topics:
Bergdahl, Mikael
Lindstedt, Eva-Lotte
Olsson, Thomas
Conjugate addition to methyl cinnamate in the reactions with methylcopper and lithium dimethylcuprate activated by either trimethylchlorosilane (TMSCl) or trimethyliodosilane (TMSI) has been studied by 1H, 13C, and 29Si NMR spectroscopy.In the presence of TMSI, methylcopper adds to methyl cinnamate.In the reactions with TMSCl, the LiI usually present from the preparation of the methylcopper is necessary for the reaction to take place, and thus the iodine seems to play an important role in the process.The presence of LiI also influences the E/Z selectivity; reactions with MeCu/TMSI, in the absence of LiI give exclusively the Z isomer of the silyl ketene acetal.
View MoreContact:852-27701081
Address:Room 2509, New Tech Plaza, 34 Tai Yau St., San Po Kong, HK
Zhuhai Rundu Pharmaceutical co.,Ltd
Contact:+86-756-7630755
Address:No.6,North Airport Road,Sanzao Town,Jinwan District
Quhua Zhongxing Refrigeration Technology Co.,Ltd.
Contact:+86-5708886618
Address:318 Bulding 2, No.866 Quhua Rd.,Kecheng District
HaiNan Periwinkle Pharmaceutical Co.,Ltd.
website:http://www.cchpharm.com/en/index.html
Contact:020-82208978
Address:Gongye road,Wuzhishan city,HaiNan province
SHANDONG ZHANHUA YONGHAO PHARMACEUTICAL TECH.CO.,LTD
Contact:+86-576-88685096
Address:GENGJU VILLAGE NORTH ONE KILOMETER,ZHANHUA DISTRICT,BINZHOU CITY,SHANDONG PROVINCE,CHINA.
Doi:10.1007/BF00755686
(1988)Doi:10.1021/ol902169k
(2009)Doi:10.1016/j.tet.2009.08.022
(2009)Doi:10.1016/j.poly.2009.06.088
(2009)Doi:10.1271/bbb.59.1740
(1995)Doi:10.1021/jm901146p
(2009)