PROCEDE DE PREPARATION DE CIS-HEXAHYDRODIBENZOPYRANONES

PROCEDE DE PREPARATION DE CIS-HEXAHYDRODIBENZOPYRANONES

Reaction of a 5-substituted resorcinol with a 1-alkoxy-4-(1-hydroxy-1-methylethyl)-1,4-cyclohexadiene in the presence of a catalyst such as boron tribromide, boron trifluoride or stannic chloride, and in the presence of about an equimolar quantity of water, affords predominantly a cis-hexahydrodiben...

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Bibliographische Detailangaben
Hauptverfasser: CH. W. RYAN, W.A. DAY, E.R. LAVAGNINO
Format: Patent
Sprache:fre
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Reaction of a 5-substituted resorcinol with a 1-alkoxy-4-(1-hydroxy-1-methylethyl)-1,4-cyclohexadiene in the presence of a catalyst such as boron tribromide, boron trifluoride or stannic chloride, and in the presence of about an equimolar quantity of water, affords predominantly a cis-hexahydrodibenzopyranone in high yields.