An improved procedure for the preparation of substituted 4-hydroxy-4,5-dihydrofurans

Morgan, 1968, J. Chem. Soc., Chem. Commun., 23 Broughton, 1986, J. Chem. Soc., Chem. Commun., 46, 10.1039/c39860000046 Kraus, 1985, Tetrahedron Lett., 26, 6435, 10.1016/S0040-4039(00)99020-8 Dürbeck, 1971, Tetrahedron, 27, 2927, 10.1016/S0040-4020(01)98085-8 Sucrow, 1979, Angew. Chem., 91, 157, 10.1002/ange.19790910210 Sucrow, 1979, 18, 149 Hendrickson, 1964, J. Am. Chem. Soc., 86, 107, 10.1021/ja01055a024 Pennanen, 1977, J. Heterocyclic Chem., 14, 745, 10.1002/jhet.5570140507 Mann, 1987, Tetrahedron, 43, 2533, 10.1016/S0040-4020(01)81660-4 Meth-Cohn, 1986, J. Chem. Soc., Chem. Commun., 695, 10.1039/c39860000695 Ashby, 1979, J. Org. Chem., 44, 4371, 10.1021/jo01338a026