655234-98-3Relevant articles and documents
Acid-catalyzed cyclization reactions of 2,2′ -bis(diarylhydroxymethyl)biphenyls to 5,5,7,7-tetraaryl-5,7-dihydrodibenzo[c,e]oxepins in the solid state
Hirano, Shinya,Toyota, Shinji,Toda, Fumio
, p. 749 - 756 (2007/10/03)
Heating of 2:1 inclusion crystals of 2,2′ -bis(hydroxydiphenylmethyl)biphenyl and formic acid in the solid state gave 5,5,7,7-tetraphenyl-5,7-dihydrodibenzo[c,e]oxepin in 89% yield. When mixtures of 2,2′-bis([bis(p-methoxyphenyl)hydroxymethyl]biphenyl and