Tetrahedron letters

New synthetic methods for olefins from secondary phosphates and thiophosphates

M Shimagaki, Y Fujieda, T Kimura, T Nakata

文献索引：Shimagaki, Masayuki; Fujieda, Yoko; Kimura, Toshimasu; Nakata, Tadashi Tetrahedron Letters, 1995 , vol. 36, # 5 p. 719 - 722

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被引用次数: 7

摘要

The reaction of phosphates 1 and 5 and thiophosphates 3 and 7 gave the olefins 2 and 6 with 0.8–1.6 mol eq of Lawesson's reagent in xylene at reflux. Compounds 1, 3, 8, 5 and 7 gave 2 and 6 in better yields with a small amount of AgOTf (0.1–0.3 mol eq) even in toluene at reflux.