Method of preparing phthalide

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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C07D30788

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active

041137418

ABSTRACT:
Method for preparing phthalide by the catalytic dehalogenation of 3-chlorophthalide in the presence of hydrogenation catalyst and in the presence of an HCl acceptor.
The phathalide 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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