Method for producing alkyl 3-phthalidylideneacetate

Details Method for producing alkyl 3-phthalidylideneacetate Method for producing alkyl 3-phthalidylideneacetate

1994-10-03

1996-04-16

Evans, Joseph E.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30778

Patent

active

055084460

ABSTRACT:
A method for producing an alkyl 3-phthalidylideneacetate has the step of treating phthalic anhydride with a monoalkyl malonate or a salt thereof having the following formula:

REFERENCES:
patent: 2483371 (1949-09-01), Mowry
patent: 4182622 (1980-01-01), Houbion et al.
patent: 4927945 (1990-05-01), Briggs et al.
"A Synthesis of Enol-Lactones" to Ingham et al, Aust. J. Chem., 1975, 28, 2499-510.
"Reformatsky Reaction: Carboxymethylenation of Cyclic Anhydrides and Reactions of Products Thereof" to Mylari et al, J. Org. Chem., 1991, 56, 2587-2589.
Chemical Abstracts, 111, 134180c (corresponding to JP-A-No. 64-3173) (1989).
Chemical Abstracts, 47, 12296 (1953).
"Reaction of Phthalic Anhydride with Ethyl Cyanoacetate: a Route to the 2H-Indeno [2,1-c]pyridine-1,9-dione, 2H-Indeno [2,1-c]pyridine-3,9-dione, 2H-Indeno[2,1-c]pyridazine-3,9-dione , and Indeno[2,1-c]pyran-1,9-dione Systems" to Renfrew et al, J. C. S. Perkin I, 1977, 84-90.
H. G. O. Becker et al, "Organikum; Organisch-chemisches Grundpraktikum, 16. bearbetiete Auflage" 1986, pp. 458-462.

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