Tetrahedron p. 3491 - 3502 (1986)
Update date:2022-08-03
Topics:
Cervantes, Humberto
Khac, Duc Do
Fetizon, Marcel
Guir, Frederic
Beloeil, Jean-Claude
Lallemand, Jean-Yves
Photochemical <2 + 2> cycloaddition of enol acetate 10a to cyclohexene led to a 3:1 mixture of the tetracyclic photoadducts A and B which, trough reverse aldol reactions, under mild alkaline conditions produced two compounds: a tetracyclic ketone 13 and a tricyclic diketone 14.Hydrolytic cleavage in methanolic hydrochloric acid of 15 and 16 resulting from irradiation of the enol ether 10b to cyclohexene gave rise to the rearranged tricyclic diketone 14 only.The trans stereochemistry 3α, 8β of the fused-ring system in 14, established by X-ray measurements, is different from the stereochemistry of the naturally occuring taxane derivatives.Ejus elementi compositionem quod vim habet in taxo baccata, photochimiae beneficio, quidam in exemplo simpliciore reddito experti sunt.Perincommode tamen accidit ut materiae ita quaesitae figura dissimilis sit ejus rei natura praebitae.
View MoreJiangsu Feymer Technology Co., Ltd.
Contact:+86-512-58110132
Address:Fenghuang Town, Zhangjiagang City, Jiangsu Province, China
Henan PURUI Pharmaceutical Co., Ltd.
website:http://www.puruipharm.com
Contact:17739583555
Address:Yezhuangqiao,Xihua town, Henan province
Chemtrade International ( China )
Contact:+86-532-86893005
Address:Rm 2-501, Huaxia Zonghe Building, No. 410 JInggangshan Road, Huangdao
Hangzhou Zyter Biological & Chemical Technology Co., Ltd.
website:http://www.zyterpharm.com
Contact:+86-18858184290
Address:West Wenyi Road, Cangqian, Yuhang
Ningbo Distant Chemicals Co.,Ltd
Contact:86-574-27862490,27862438
Address:5F-3,#54 DaShaNi street,Ningbo,CHINA
Doi:10.1002/ejic.200800804
(2008)Doi:10.1021/ja8099757
(2009)Doi:10.1002/zaac.200700514
(2008)Doi:10.1016/j.jorganchem.2008.12.055
(2009)Doi:10.1016/j.tetlet.2018.01.025
(2018)Doi:10.1007/s00280-010-1319-8
(2011)