Tetrahedron Letters p. 5141 - 5144 (1992)
Update date:2022-08-04
Topics:
Pirrung, Frank O. H.
Steeman, Werner J. M.
Hiemstra, Henk
Speckamp, W. Nico
Kaptein, Bernard
Boesten, Wilhelmus H. J.
Schoemaker, Hans E.
Kamphuis, Joban
Several ω-alkenyl dichloroacetates cyclize in moderate to excellent yields to 3,5-dichloro-oxocon-2-ones (8-membered ring lactones) when heated in benzene at 80-180°C in the presence of a catalytic amount of the cuprous chloride 2,2′-bipyridine complex.
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