Journal of the Chemical Society. Perkin transactions I p. 295 - 302 (1996)
Update date:2022-08-03
Topics:
McMorris, Trevor C.
Chavez, Rodrigo G.
Patil, Prakash A.
Brassinolide has been synthesized from stigmasterol in an overall yield of 7%. The key step in the synthesis is aldol condensation of 2α,3α-isopropylidenedioxy-6-oxo-23,24-dinor-5α-cholan-22-al with 3-isopropylbut-2-enolide carried out at -78°C, which gives a product with 22R,23R stereochemistry in high yield. Catalytic hydrogenation of this product is highly stereoselective leading to the desired 245 stereochemistry in an intermediate which is readily transformed into brassinolide. Copyright 1996 by the Royal Society of Chemistry.
View MoreWeifang Dongxing Chitosan Factory
website:http://dxchitosan.lookchem.com/
Contact:13475651157
Address:Weifang city ,shandong province
Shanghai Maxchemco Chemical Industry Co., Ltd.
Contact:(86)21-51079223
Address:No.1305-8, B241, the Ecust Park, Huajing Road, Xuhui District, Shanghai
website:http://www.jairadhesales.com
Contact:0091-79-26431096
Address:309 Harikrupa Tower,Nr old Sharda Mandir Char Rasta,Ellisbridge
ClickChem Technology Co., Limited
Contact:+86-0310-6519966/0531-52893837
Address:No.750 Shunhua Road, High-Tech Zone, Jinan city, Shandong China
Yuan Shi(SuQian)Biotechnology Co.,Ltd
website:http://www.yuanshibio.com
Contact:+86-527-84226672
Address:jiangsu suqian
Doi:10.1021/jm00015a011
(1995)Doi:10.1248/cpb.38.3048
(1990)Doi:10.1021/jo00007a040
(1991)Doi:10.1016/S0040-4020(01)90791-4
(1992)Doi:10.1002/jhet.5570270750
(1990)Doi:10.1039/c39910000089
(1991)
