Journal of Organic Chemistry p. 3867 - 3872 (1987)
Update date:2022-07-29
Topics:
Karczesy, J. J.
Arbogast, B.
Deinzer, M. L.
Pyrrolizidine alkaloid pyrrolws react rapidly with 4-(p-nitrobenzyl)pyridine under pseudo-first order conditions.A biexpotential first-order rate law is observed.Relative reactivities are grewatly influenced by the nature of the leaving group at C7. 2,3-Dihydro-1H-pyrrolizin-1-ol and dehydrosupinidine under pseudo-first-order reaction conditions obey a simple first-order rate expression.Evidence for oligomerization of the pyrrolizidine pyrrole nucleus has been obtained under these reaction conditions, and it is proposed that a second color-forming reaction sequence of nucleophile with the oligomer C9s accounts for the biexpotential rate law.
View MoreGuangzhou Chemical Reagent Factory
Contact:+86-20-8435 9820 or 8435 7345
Address:Southern Guangzhou, Guangdong, China
Nantong LiKai Chemical Co.,Ltd
Contact:+86-513-89068669
Address:Jincheng Science Park
Jurong Huaheng Natural Biological Products Factory
website:http://www.risebiochem.com
Contact:+86-13921007726
Address:Chuncheng town,Jurong city,Jiangsu province,China
Contact:+8618766299236
Address:ROOM808, BUILDING2,NO.230 SHEN ZHEN ROAD, LAOSHAN DISTRICT
LABTER PARMATECH(BEIJING)CO.,LTD
Contact:+86-10-56330744
Address:NO.19,TIANRONG STREET,DAXING BIOMEDICIAL BASE ,ZHONGGUANCUN SCIENCE AND TECHNOLOGY PARK,BEIJING ,CHINA
Doi:10.1016/j.tetlet.2007.11.171
(2008)Doi:10.1007/BF00766838
(1985)Doi:10.1007/s10600-009-9194-4
(2008)Doi:10.1016/j.bmcl.2007.11.077
(2008)Doi:10.1021/jo702590s
(2008)Doi:10.1016/j.bmcl.2007.11.104
(2008)