Tetrahedron p. 1975 - 1982 (1983)
Update date:2022-09-26
Topics:
Narasimhan, N. S.
Mali, R. S.
Kulkarni, B. K.
N,N-Dimethyl-3,4-dimethoxy- and methylenedioxybenzylamines were lithiated and the organolithium intermediates treated with paraformaldehyde to give the 2-hydroxymethyl derivatives.The latter were converted to 7,8-dimethoxy- and methylenedioxyisochroman-3-ones through successive reaction with ClCOOEt, KCN and KOH.The isochromanones on condensation with homoveratrylamine or homopiperonylamine, followed by cyclisation and reduction furnished the protoberberine alkaloids.
View MoreZHIJIANG ZENVA SINO COMMERCE AND TRADE CO., LTD.
website:http://www.zenvasino.com
Contact:+86-138-72658998
Address:Shibeishan Road,Zhijiang, Hubei, China
JIANGSU GRAND XINYI PHARMACEUTICAL CO.,LTD
website:http://www.xypharm.com/
Contact:+86-515-84383317
Address:Chenli Road,Costal Chemical Area Binhai,Yancheng, Jiangsu,China
Hunan Haili Chemical Industry Co.,Ltd.
Contact:+86-731-85521860
Address:No.251, 2nd Section, Furong Road, Changsha,Hunan,China
JIAXING SUNS INTERNATIONAL TRADE CO LTD
Contact:18367306858
Address:No.123,Huixin Avenue,Huimin Dist
Contact:86-21-50966856
Address:Building 5,300 Chuanzhan Road,Pudong New District,Shanghai
Doi:10.1016/S0040-4039(00)87339-6
(1982)Doi:10.1080/00021369.1986.10867629
(1986)Doi:10.1007/BF00904723
(1964)Doi:10.1271/bbb.90649
(2010)Doi:10.1021/ja974072a
(1998)Doi:10.1016/S0040-4039(01)81861-X
(1981)
