The combination of (p-CF3C6H4)3PAuCl and AgOTf generates a powerful catalyst for the intramolecular cyclizations of readily available γ-hydroxyalkynones under mild conditions. The substituted 3(2H)-furanones are obtained in 55−94% yields. This method is also applicable to the preparation of 2,3-dihydro-4H-pyran-4-ones.
(p -CF 3 C 6 H 4)3 PAuCl和AgOTf的组合为在温和条件下易于获得的γ-羟基炔酮的分子内环化生成了强大的催化剂。取代的3(2 H)-呋喃酮的产率为55-94%。该方法也适用于制备2,3-二氢-4 H-吡喃-4-酮。
The intramolecular Wadsworth-Emmons condensation of .gamma.-(acyloxy)-.beta.-ketophosphonates. A new route to 3(2H)-furanones
作者:Paul Sampson、Vassilios Roussis、Gary J. Drtina、Frederick L. Koerwitz、David F. Wiemer
DOI:10.1021/jo00363a023
日期:1986.6
A new and facile synthesis of 3(2H)-furanones via carboxylation- decarboxylation sequence
作者:Yoshio Inoue、Kunihiro Ohuchi、Shin Imaizumi
DOI:10.1016/s0040-4039(00)82233-9
日期:1988.1
Wolff, Steven; Agosta, William C., Canadian Journal of Chemistry, 1984, vol. 62, p. 2429 - 2434
作者:Wolff, Steven、Agosta, William C.
DOI:——
日期:——
WOLFF, S.;AGOSTA, W. C., J. ORG. CHEM., 1985, 50, N 24, 4707-4711