Tetrahedron Letters p. 2483 - 2486 (1990)
Update date:2022-09-26
Topics:
Baldwin, Jack E.
Pitlik, Janos
The 3-methylenecephams underwent 1,3-dipolar cycloaddition reactions with diazomethane to give spiropyrazolinocephams in a completely stereo- and regioselective manner. Thermal breakdown of these 1-pyrazolines led to spirocyclopropane and vinyl derivatives.
View MoreXi'an Kaixiang Photoelectric Technology Co., Ltd
website:http://www.kxmaterials.com/
Contact:86-29-15991651477
Address:Building 6, Biopharmaceutical Industry R&D Cluster Base, No. 16, Caotang 4th Road, Caotang Science and Technology Industrial Base, High-tech Zone, Xi'an City, Shaanxi Province, China
Jiangxi Lanqi Fine Chemical S&T Co., Ltd.
Contact:+86-21-64891143
Address:XinJiShan Industrial Area, Zhangshu City, JiangXi Province, China
Contact:+86-29-88710656
Address:South Tai bai Road, High Tech Development Zone, Xi'an China
SHAANXI TOP PHARM CHEMICAL CO.LTD
Contact:+86-029-85733403
Address:No.108 ,west sector,south er huan,xi'an,china
Chemtrade International ( China )
Contact:+86-532-86893005
Address:Rm 2-501, Huaxia Zonghe Building, No. 410 JInggangshan Road, Huangdao
Doi:10.1021/ja01338a037
(1933)Doi:10.1021/acs.joc.0c01992
(2020)Doi:10.1039/c1ob06199b
(2011)Doi:10.1021/jo970435d
(1997)Doi:10.1016/0040-4039(90)80007-9
(1990)Doi:10.1016/S0040-4039(00)76287-3
(1966)
