Method of preparing phthalide

Details Method of preparing phthalide Method of preparing phthalide

1978-08-04

1980-08-05

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

204158HA, C07D30788

Patent

active

042161533

ABSTRACT:
A method has been invented for the preparation of phthalide which comprises chlorinating o-toluic acid at 30.degree.-260.degree. C. and recovering the phthalide obtained.

REFERENCES:
patent: 3223728 (1965-12-01), Di Bella
patent: 3350467 (1967-10-01), Lasco
patent: 3663575 (1972-05-01), Roos
patent: 4113741 (1978-09-01), Funten
patent: 4116976 (1978-09-01), Englander et al.
Hjelt, Ber. 19 (1886) p. 412.
Wagner et al., Synthetic Organic Chem., p. 535, John Wiley & Sons Inc., New York.
Rabjohn, Jour. Amer. Chem. Soc., 76, 1954, pp. 5479-5482.

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