Tetrahedron Letters p. 4121 - 4124 (1990)
Update date:2022-08-03
Topics:
Franck-Neumann, M.
Geoffroy, P.
Miesch, M.
Doerwald, F. Zaragoza
The possibility of achieving convergent syntheses with elaborate carbenes is illustrated by the isobutenylalkynylcarbene II (R = Br).By reaction with 3-cyclohexen-1-one, the endo cyclopropanic adduct IIIa is formed as a major product.Metalation with MeLi, followed by reaction with MeI, proceeds with inversion of configuration ( -> sesquicarene skeleton, XI), or, after protection of the ketofunction, with retention of configuration ( -> isosesquicarene VIII).
View MoreWuxi Innopal International Trade CO.,LTD
Contact:+86-510-80711901-8003
Address:Room 402,Building 5,Longze Garden,No.17,South huanjiu Road,Yixing City, Jiangsu,China
Taizhou Green Peptide Trading Co., Ltd.
Contact:13736652831
Address:Room 1501, No71, Yuehe Road, Taizhou City, Zhejiang Province, China
Nantong LiKai Chemical Co.,Ltd
Contact:+86-513-89068669
Address:Jincheng Science Park
Shanghai Science Peptide Biological Technology Co.,ltd
website:http://www.scipeptide.com
Contact:+86-21-51099675
Address:No.8 Changyang Rd
Contact:0086-21-80264647
Address:RM 202, NO 1602 West Zhongshan Rd, Shanghai, China
Doi:10.1016/S0022-328X(99)00008-X
(1999)Doi:10.1016/S0040-4039(01)89254-6
(1965)Doi:10.1016/S0040-4020(01)85676-3
(1994)Doi:10.1021/jacs.5b05100
(2015)Doi:10.1016/0021-9517(69)90352-2
(1969)Doi:10.1021/ja00757a033
(1972)
