694432-14-9Relevant academic research and scientific papers
Unexpected formation of new photochromic compounds derived from 3,3-diphenyl-3H-naphtho[2,1-b]pyran-1-one
Sousa, Céu M.,Coelho, Paulo J.,Carvalho, Luis M.,Vermeersch, Gaston,Berthet, Jér?me,Delbaere, Stephanie
experimental part, p. 8317 - 8324 (2010/11/02)
Two new unexpected photochromic compounds were obtained from naphtho[2,1-b]pyran-1-one 1. The reaction of this ketone with the silyl enol ether methyl trimethylsilyl dimethylketene acetal, catalyzed by TiCl 4, afforded the photochromic dihydron
