Process for producing 3,4-dihydrocoumarin derivatives

Details Process for producing 3,4-dihydrocoumarin derivatives Process for producing 3,4-dihydrocoumarin derivatives

1992-02-24

1993-08-17

Fan, Jane T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31110

Patent

active

052370755

ABSTRACT:
A process for producing a 3,4-dihydrocoumarin compound represented by formula (II): ##STR1## wherein R.sub.1 to R.sub.4 are as defined in the specification, comprising the steps of:

REFERENCES:
patent: 3442910 (1969-05-01), Thweatt et al.
patent: 4772728 (1988-09-01), Korte et al.
J. Am. Chem. Soc., vol. 62, pp. 283-287 (1940).
J. Am. Chem. Soc., vol. 62, pp. 3067-3070 (1940).
Chemical Abstracts, vol. 104, No. 11, p. 647, Abstract No. 88436w, Matsuda (Mar, 17, 1986).
Griffiths et al, Synthetic and Stereochemical Studies of the Octahydro-1-benzopyran System, J. Chem. Soc. Perkin Trans. II, pp. 431-436 (1988).

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