Tetrahedron Letters p. 2461 - 2464 (1991)
Update date:2022-08-11
Topics:
Zelle
McClellan
The methylenation of a variety of catechols is described, employing cesium carbonate and bromochloromethane in dimethylformamide at 110°C or acetonitrile at reflux. The corresponding methylenedioxy derivatives are obtained in 86-97 yield. Utilization of this method provided β-hydrastine in 70% yield from its corresponding dihydroxy analog.
View More
Hangzhou Taiyan Trading Co., Ltd(expird)
Contact:+86-13777583958
Address:NO.63, Xingyi Street, Xihu District, Hangzhou, Zhejiang, China
Shanghai Puda Chemical Co.,Ltd
Contact:+86+571+56565965
Address:10F Haiyue Building,Danfeng Road,Binjiang District,Hangzhou,China
SHENYANG COMEBOARD TECHNOLOGY CO., LTD
Contact:+86-24-25724626
Address:Room2210,Tianbao International Building,No.8-1 Weigong South Street,Tiexi District,Shenyang,China
Contact:+852 83038667
Address:Room 1502, 15th Floor, SPA Centre,53-55 Lockhart Road, Wanchai, Hong Kong
Shanghai He Yang International Trading Co., Ltd.
Contact:+86-21-52043598
Address:Room 816, Blag.5, No.58 Huachi Road
Doi:10.1002/jlcr.637
(2003)Doi:10.1055/s-1995-4077
(1995)Doi:10.3987/COM-15-13326
(2015)Doi:10.1016/j.tet.2016.11.075
(2017)Doi:10.1021/jp909183x
(2010)Doi:10.1111/j.1553-2712.2001.tb00538.x
(1894)
