Cyclization of 1,5-hexadiene to cyclohexene

Details Cyclization of 1,5-hexadiene to cyclohexene Cyclization of 1,5-hexadiene to cyclohexene

1978-12-29

1980-02-05

O'Keefe, Veronica

Chemistry of hydrocarbon compounds

Alicyclic compound synthesis

From nonring hydrocarbon

585369, C07C 1320

Patent

active

041873866

ABSTRACT:
1,5-Hexadiene is cyclized to cyclohexene by contacting 1,5-hexadiene with a mixture of a first catalyst selected from the group consisting of chromium oxides, chromium chlorides, chromium bromides, molybdenum oxides, molybdenum chlorides, molybdenum bromides, tungsten oxides, tungsten chlorides, tungsten bromides, iron oxides, cobalt oxides, nickel oxides, elemental sulfur, SiO.sub.2, Al.sub.2 O.sub.3, vanadium metal, vanadium oxides, VOF.sub.3, and mixtures thereof, and a second catalyst selected from a tin (IV) halide and mixtures thereof.

REFERENCES:
patent: 3247270 (1966-04-01), Kirk
patent: 3507927 (1970-04-01), Olechowski et al.
patent: 3510533 (1970-05-01), Maxfield
patent: 3655791 (1972-04-01), De Young
patent: 3691253 (1972-09-01), Hughes
M. Julia et al., Bull. Soc. Chim., Fr., 2397, 1966.
M. Julia et al., Bull. Soc. Chim., Fr., 1796, 1973.
I. Tabushi et al., Tet. Letters, 2487, 1966.

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