Chemistry of Heterocyclic Compounds p. 501 - 506 (1985)
Update date:2022-08-04
Topics:
Bespalov, B. P.
Abolin, A. G.
Rumyantsev, V. G.
The condensation of γ-pyrones with 1,3-bis(dicyanomethylene)indan leads to the corresponding deeply colored 2-(pyran-4-ylidene)-1,3-bis(dicyanomethylene)indans.The reaction of the latter with primary aliphatic or aromatic amines leads to replacement of the pyran oxygen by an amino group.The resulting compounds are zwitterions and possesses dichroic properties.The IR and UV spectra, and also the dichroic spectra of the compounds obtained in a liquid crystal are given.A qualitative explanation of the nature of the absorption bands of these compounds in the visible region of the spectrum is presented.
View MoreHANGZHOU YUNUO CHEMICAL CO.,LTD
website:http://www.yunuochem.com
Contact:0571-83715115
Address:hangzhou
Changzhou Litong Chemical Co., Ltd.
website:http://www.litonchem.com/
Contact:+86-519-86301238
Address:Laoba Rd, Hutang town Changzhou Jiangsu
Contact:+31-24-3886056
Address:Binderskampweg 29 Unit 36
Contact:+86-511-88790000
Address:338 North Yushan Rd, Zhenjiang, Jiangsu 212016
Tianjin SPHINX SCIENTIFIC LAB.
Contact:+86-022-66211289
Address:Tianda high-tech Park. No.80,the 4th Avenue
Doi:10.3762/bjoc.16.43
(2020)Doi:10.1021/ja076155p
(2007)Doi:10.1021/ja075544g
(2007)Doi:10.1021/jo060066y
(2006)Doi:10.1016/j.molcata.2006.09.011
(2007)Doi:10.1002/bkcs.11370
(2018)
