Process for the preparation of intermediates useful in the preparation of pyranyl cyanoguanidine derivatives

A process for preparing compounds of the formula I where a, b, d, R , R , R and R are as defined herein including condensation of a phenol of formula II with an acetal of formula III in the presence of a catalytic amount of a tertiary amine. The compounds of formula I are intermediates useful in the...

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Bibliographic Details
Main Authors DAVID R. KRONENTHAL, JEFFREY T. NORTH
Format Patent
LanguageEnglish
Published 22.12.1994
Edition5
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:A process for preparing compounds of the formula I where a, b, d, R , R , R and R are as defined herein including condensation of a phenol of formula II with an acetal of formula III in the presence of a catalytic amount of a tertiary amine. The compounds of formula I are intermediates useful in the preparation of pyranyl cyanoguanidine derivatives.
Bibliography:Application Number: AU19940064779