Chemistry of Heterocyclic Compounds p. 891 - 896 (1982)
Update date:2022-08-02
Topics:
Tolmachev, A. I.
Derevyanko, N. A.
Ishchenko, A. A.
Symmetrical 4,4'-diphenyl-substituted benzopyrylo-2-monomethylidene, carbo-, and dicarbocyanines and their thio analogs, as well as unsymmetrical carbocyanines that contain, in addition to 4-phenylbenzopyrylium or 4-phenylbenzothiopyrylium rings, 3-ethylbenzothiazolium or 1,3,3-trimethyl-3H-indolium residues, were synthetised.The indicated dyes were more highly colored than their isomers that contain flavylium or thioflavylium residues.On the basis of the deviations calculated from the centres of the absorption bands it was concluded that the benzopyran residues in the dyes of the α series have greater electron donor character than those in the dyes of the γ series.
View MoreShanghai Rainbow Chemistry Co., Ltd.
Contact:+86-21-64968086-5815/5812
Address:3rd floor, Building 7, 251 Faladi Road, Zhangjiang Hi-Tech Park, Pudong District, Shanghai, P.R. China
Linyi Shengxin Pharmaceutical R&D Co., Ltd
Contact:+86-18653953873
Address:West First of Yufeng Road, Yishui County
Taixing Shenfeng Chemical Co., Ltd.
Contact:+86-523-87117033, 87117666
Address:4# Yinsanlu, Huangqiao town, Taixing, Jiangsu, China.
Nanjing Qirui Material Co., Ltd.
Contact:+86-25-52320053
Address:F4-5, #17 Building, Chuang Yi Yuan, No.6 Guanghua East Street, Nanjing, 210007 P.R.China
Contact:852-27701081
Address:Room 2509, New Tech Plaza, 34 Tai Yau St., San Po Kong, HK
Doi:10.1039/a900915i
(1999)Doi:10.1016/S0040-4020(99)00349-X
(1999)Doi:10.1002/(SICI)1521-3765(19990503)5:5<1643::AID-CHEM1643>3.0.CO;2-T
(1999)Doi:10.1080/15421400490435369
(2004)Doi:10.1080/07328319908044666
(1999)Doi:10.1039/a901419e
(1999)
