86467-30-3Relevant academic research and scientific papers
ECHANGE DE SUBSTITUANTS EN SERIE ANTHRACENIQUE PAR CYCLO-ADDITIONS SUIVIES D'ELIMINATIONS SPONTANEES; APPLICATION A LA SYNTHESE D'UN CAPTEUR HYDROSOLUBLE D'OXYGENE SINGULET
Aubry, J. M.,Schmitz, C.,Rigaudy, J.,Cuong, Nguyen Kim
, p. 623 - 628 (2007/10/02)
Condensation of benzaldehyde with veratrole in acidic media affords a one-pot synthesis of 2,3,6,7-tetramethoxy-9,10-diphenylanthracene 1f.The reaction of 1f with dimethyl acetylenedicarboxylate does not yield the expected adduct but leads directly to the tetramethyl 9,10-diphenylanthracene-2,3,6,7-tetracarboxylate 9b and other products, through successive cyclo-additions followed by spontaneous eliminations of dimethoxyacetylene or methoxycarbyne.
