The Journal of Organic Chemistry

Intramolecular [2+ 2] cycloaddition reactions of ketene and carbonyl groups. A new synthesis of benzofurans

WT Brady, YF Giang

Index: Brady, William T.; Giang, Frank Y. Journal of Organic Chemistry, 1986 ,  vol. 51,  # 11  p. 2145 - 2147

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Citation Number: 30

Abstract

(5) Defined as AG' when AGO = 0. (6) A major fador reaponeible for the high proton acidity of Meldnun's acid and the high Lewis acidity of benzylidene Meldrum's acid is ita bislactone structure.' (7) (a) Amett, E. M.; Maroldo, S. G.; Schilling, SL; Harrelson, JA J . Am. Chem. SOC. 1984,106,6759. (b) Huisgen, R.; Ott, H. Tetrahedron 1959, 6, 253. (8) For recent reviews, we: (a) Bernasconi, C. F. Pure Appl. Chem. 1982,54,2335. (b) Bernaeconi, CF ...