New Photochromic 2,2-Diphenyl-[2H]-Chromenes Annellated With Nitrogenated Sex-Membered Ring
摘要:
New photochromic 2,2-diphenyl-[2H]-chromenes 1-6 annellated with nitrogenated six-membered ring have been synthetized by optimized reaction of suitable metal phenolates and beta-phenyl cinnamaldehyde. All compounds exhibit photochromic behavior at room temperature. Chemical yields and photochromic characteristics depend significantly on the relative position of annellation on the chromenic moiety.
New photochromes equipped with positively charged ammonium fragments
作者:Vladimir Lokshin、Sergey V. Paramonov、Olga A. Fedorova
DOI:10.1016/j.mencom.2015.09.018
日期:2015.9
Quaternization of N-heterocycle-fused chromenes with iodomethane and of triethylamine with 3-bromopropyl-substituted spironaphthoxazine affords new ammonium-equipped photochromes.