Method of preparing phthalide

Details Method of preparing phthalide Method of preparing phthalide

1977-04-01

1978-09-26

Trousoe, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30788

Patent

active

041169760

ABSTRACT:
Method of preparing phthalide by hydrogenolysis of 3-chlorophthalide in the presence of a nobel metal catalyst, wherein hydrogenolysis is carried out in the absence of HCl acceptor.
The phthalide which is produced is a valuable chemical intermediate for the manufacture of dyes, plant protecting agents and pharmaceuticals.

REFERENCES:
patent: 2114696 (1935-03-01), Austin et al.

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