Preparation of cis-1-hydroxy-3-substituted-6,6-dimethyl-6,6a,7,8

Details Preparation of cis-1-hydroxy-3-substituted-6,6-dimethyl-6,6a,7,8 Preparation of cis-1-hydroxy-3-substituted-6,6-dimethyl-6,6a,7,8

1977-07-12

1978-09-19

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604482B, C07D31772

Patent

active

041154037

ABSTRACT:
Reaction of a 5-substituted resorcinol with a ketal of 4-(1-hydroxy-1-methylethyl)-3-cyclohexen-1-one in the presence of a suitable catalyst effects condensation to provide substantially exclusively a cis-1-hydroxy-3-substituted-6,6-dimethyl-6,6a,7,8,10,10a-hexahydro-9H-dibe nzo-[b,d]pyran-9-one.

REFERENCES:
patent: 3906047 (1975-09-01), Surmatis et al.
Chem. Abstracts 52:5308e.
Archer et al., Journ. Org. Chem., vol. 42, No. 13, 1977, pp. 2277-2284, pertinent p. 2280.

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