Dehydrohalogenation process

Details Dehydrohalogenation process Dehydrohalogenation process

1978-03-13

1979-06-05

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4500

Patent

active

041573498

ABSTRACT:
5-Ethenyl-4,4a,7,8-tetrahydro-4a-methyl-2(3H)-naphthalenone, an intermediate useful in the total synthesis of steroids, is prepared by dehydrohalogenation of 5-(2-bromoethylidene)-2(3H)-4a-methyl-4,4a,5,6,7,8-hexahydronaphthalen-2-o ne by a pyrolytic procedure or by means of dehydrohalogenating agents, for example, a mixture of lithium bromide and lithium carbonate.

REFERENCES:
patent: 3920748 (1975-11-01), Valenta
patent: 3920749 (1975-11-01), Cohen
Ruppert et al., Ber. 106, pp. 3636-3644 (1973).

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