Tetrahedron Letters p. 4621 - 4624 (1983)
Update date:2022-08-30
Topics:
Francisco, Cosme G.
Freire, Raimundo
Hernandez, Rosendo
Medina, Maria C.
The photolysis of 26-hydroxy-furostan (5) and (8) in the presence of Pb(OAc)4/I2 affforded spirostan sapogenins (4) and (7) respectively in 80percent yield.This cyclization takes place by an uncommon 1,6-hydrogen shift involving a 7-membered transition state as demonstrated by using specifically deuterium labeled compounds.
View More
Contact:86-511-85210668 0511-85210668, 85210818, 85210898
Address:Yihai Garden E-902,NO.99 Daxi RD., Zhenjiang Jiiangsu ,China
Yuan Shi(SuQian)Biotechnology Co.,Ltd
website:http://www.yuanshibio.com
Contact:+86-527-84226672
Address:jiangsu suqian
Shanghai Yurui Biotechnology(Anyang) Pharmaceutical Co., Ltd
Contact:+86-0372-3662335 +86-0372-3661988
Address:hanling industrial park anyang
Contact:+86-29-88710656
Address:South Tai bai Road, High Tech Development Zone, Xi'an China
website:http://www.cartoonchem.com/
Contact:+86-25-58074918
Address:Room 2109, RuiHua Business Center,315 South ZhongShan Road, Nanjing 210001, China
Doi:10.1002/aocs.12484
(2021)Doi:10.1021/ja01038a037
(1969)Doi:10.1021/jacs.9b12443
(2020)Doi:10.1021/jo030233j
(2004)Doi:10.1021/ja00745a029
(1971)Doi:10.1016/j.polymer.2016.01.075
(2016)
