Process for the preparation of cyclobutanones

Details Process for the preparation of cyclobutanones Process for the preparation of cyclobutanones

1975-08-25

1977-06-07

Weinberger, Lorraine A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2603452, 2603462R, 260468H, 260514G, 260514H, 260515R, 260520E, 260586R, 260586G, 260590E, C07C 4502, C07C 5100

Patent

active

040284182

ABSTRACT:
Cyclobutanones and cyclobutenones are prepared by contacting a 2-haloacyl halide with an ethylenically unsaturated compound or an alkyne in an inert aprotic solvent at a temperature above 5.degree. C in the presence of zinc and/or tin.

REFERENCES:
patent: 3390185 (1968-06-01), Martin
Ghosez I, Tetrahedron, 27, pp. 615-633 (1971).
Brady, I, Synthesis, pp. 415-422 (1971).
Brady, II, J. Org. Chem., 31, pp. 626-628 (1966).
Stevens, J. Am. Chem. Soc., 87, pp. 5257-5259 (1965).
Ghosez II, Tetrahedron Letters, pp. 135-139 (1966).

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