
Tetrahedron p. 661 - 672 (1989)
Update date:2022-09-26
Topics:
Neunert, Dirk
Klein, Harald
Welzel, Peter
Cyclization of the unsaturated sulfoxides 18b, 18c under Pummerer conditions provided the six-membered products 20a and 21a, whereas base-catalyzed cyclization of the stereoisomeric epoxysulfones 16a, 16b and 17a, 17b led exclusively to the five-membered
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