J.W. Scheeren, F.J.M. Oahrnen, C.G. Bakker,
Chemistry of ketene acetals II. A simple route to 2,2-dialkoxytetrahydrofurans, y-butyrolactones, 2-(5H)-furanones and 2-alkoxy-4,5-dihydrofurans
Tetrahedron Letters, Volume 20, Issue 31, 1979, Pages 2925-2928
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doi:10.1016/S0040-4039(01)86454-6