KANEKO, CHIKARA;NAITO, TOSHIHIKO;MIWA, CHIEMI, HETEROCYCLES, 1982, 19, N 12, 2275-2278
作者:KANEKO, CHIKARA、NAITO, TOSHIHIKO、MIWA, CHIEMI
DOI:——
日期:——
HUTCHINGS, MICHAEL G.;CHIPPENDALE, A. MARGARET;FERGUSON, IAN, TETRAHEDRON, 44,(1988) N 12, 3727-3734
作者:HUTCHINGS, MICHAEL G.、CHIPPENDALE, A. MARGARET、FERGUSON, IAN
DOI:——
日期:——
LEMOINE J.; LEGRAND L.; LOZACH N., PHOSPH. AND SULFUR, 1977, 3, NO 3, 321-324
作者:LEMOINE J.、 LEGRAND L.、 LOZACH N.
DOI:——
日期:——
The regio- and stereochemistry of the alkoxide-induced ring-opening of methoxymethylidene-substituted homopthalic anhydride
作者:Michael G. Hutchings、A. Margaret Chippendale、Ian Ferguson
DOI:10.1016/s0040-4020(01)86002-6
日期:1988.1
Ring-opening of methoxymethylidene-substituted homophthalic anhydride (1) by methoxide occurs by two modes. Attack at the 1-position (“benzoate” carbonyl) leads to a stable acid-ester. A combination of unambiguous syntheses and 1H- and 13C-n.m.r. spectroscopy has been used to show that this material has the “benzoate ester, acrylic acid” structure (5). This corrects the structure assignment given earlier