6310-67-4Relevant academic research and scientific papers
ACYLATION OF PHENOL BY AROMATIC TETRACARBOXYLIC ACIDS AND THEIR DIANHYDRIDES
Sergeev, V. A.,Shitikov, V. K.,Ena, A. B.,Bravkova, R. N.,Gorbachev, S. G.,et al.
, p. 1168 - 1173 (2007/10/02)
A series of aromatic dilactones containing 4-hydroxyphenyl substituents were synthesized by the reaction of phenol with pyromellitic, 3,3',4,4'-oxydibenzenetetracarboxylic acids, and their dianhydrides.At increased temperatures condensation at the ortho position of the phenol with the subsequent formation of fluorane structures occurs in addition to para-acylation.As a result of the reaction of 3,3',4,4'-oxydibenzenetatracarboxylic dianhydride with phenol a mixture of three isomeric condensation products is formed.
