Chemistry Letters p. 1325 - 1328 (1982)
Update date:2022-09-26
Topics:
Hasegawa, Masaki
Katsuki, Hirokazu
Yonezawa, Noriyuki
Yoshida, Tsuyoshi
Ikebe, Yutaka
The lacton-opening reaction of syn head-to-head coumarin dimer with amines gave c-3,c-4-bis(2-hydroxyphenyl)-r-1,c-2-cyclobutanedicarboxamides and/or -dicarboximides.The product ratio of the amide to the imide varied with the reaction temperature and the amount of amine used.Thermal reaction of these lactone-opened derivatives proceeded in two ways depending on the nature of amine moiety to give either the original coumarin dimer or 2,2'-dihydroxystilbene and the maleimide derivative.
View Morezhenjiang runjing high purity chemical co ltd
Contact:+86-511-83361155
Address:No.8.haixi road,international chemical park
Contact:13357117572
Address:No.149 Shiji dadao Road.
Shanghai Hanhong Scientific Co.,Ltd.
website:http://www.chemvia.com
Contact:+86-21-64541543,54280654,13918533501
Address:Jiachuan Road 245
Hebei Fulong Import & Export Co., Ltd.
Contact:86-311-87795661
Address:15A19 Zhongyuan Building,368 Youyi North Street,Shijiazhuang 050070,China
Jiaxing Trustworthy Import And Export Co.,Ltd
Contact:+86-573-82030555
Address:Room 1202, Unit B, Charming plaza,No.1558 East Zhongshan Road , Jiaxing City, Zhejiang Province, China.
Doi:10.1016/j.jorganchem.2004.09.007
(2005)Doi:10.1080/00397911.2011.559317
(2012)Doi:10.1021/jm00257a004
(1974)Doi:10.1016/j.saa.2004.07.029
(2005)Doi:10.1021/jo048199b
(2005)Doi:10.1039/b411449c
(2005)