Wichterle Reaction

O. Wichterle et al., Coll. Czech. Chem. Commun. 13, 300 (1948).

Modification of the Robinson annulation, q.v., in which 1,3-dichloro-cis-2-butene is used instead of methyl vinyl ketone:

M. Kobayashi, T. Matsumoto, Chem. Lett. 1973, 957; H. Yoshioka et al., Tetrahedron Letters 1979, 3489. Review: M. Hudlicky, Coll. Czech. Chem. Commun. 58, 2229-2244 (1993).