Exo selective diels-alder reactions mediated by Et2AlCl in the presence of H2O
作者:Dale E. Ward、Yuanzhu Gai
DOI:10.1016/s0040-4039(00)74159-1
日期:1992.3
Diels-Alder reactions of 4-triisopropylsilyloxy-2H-thiopyran with N-(2-propenoyl)-2-oxazolidones are promoted by Lewis acids. Unusually high exo selectivity is observed when Et2AlCl in the presence of H2O is used as the Lewis acid. The involvement of the sulfur atom with the bidentate Lewis acid dichlorodiethyl-mu-oxodialuminum is postulated.
Ward, Dale E.; Gai, Yuanzhu, Canadian Journal of Chemistry, 1992, vol. 70, # 10, p. 2627 - 2634
作者:Ward, Dale E.、Gai, Yuanzhu
DOI:——
日期:——
WARD, D. E.;ZOGHAIB, W. M.;RHEE, CHUNG K.;GAI, YUANZHU, TETRAHEDRON LETT., 31,(1990) N, C. 845-848
作者:WARD, D. E.、ZOGHAIB, W. M.、RHEE, CHUNG K.、GAI, YUANZHU
DOI:——
日期:——
Diels-alder reactions of 2H-thiopyrans
作者:Dale E Ward、Wajdi M Zoghaib、Chung K Rhee、Gai Yuanzhu
DOI:10.1016/s0040-4039(00)94643-4
日期:1990.1
Ward, Dale E.; Gai, Yuanzhu; Zoghaib, Wajdi M., Canadian Journal of Chemistry, 1991, vol. 69, # 10, p. 1487 - 1497