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

1978-05-10

1979-01-09

Love, Ethel G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D31904

Patent

active

041338162

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: 3127417 (1964-03-01), Porret et al.
patent: 4054581 (1977-10-01), Blanchard et al.
Chem. Abstracts 77:75177m.

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