SARIPINAR, EMIN; GOZEL, YAHYA; ONAL, ZOLSIYE; ILHAN, ILHAN OZER; AKcAMUR, YUNUS
(Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 2000-12-05)
p,p'-Dimethoxydibenzoylmethane 1 combines with oxalyl chloride 2 to yield novel furan-2,3-dione 3. Thermal transformation is supposed to occur by the ring opening of the 3 followed by the intermediate p,p'-dimethoxydibenzoylketene ...