Method for converting carboxylic acid groups to trichloromethyl groups
First Claim
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1. A method for converting a carboxylic acid group on the ring of an aryl or nitrogen heteroaromatic compound to a trichloromethyl group which comprises contacting said aryl or nitrogen heteroaromatic compound with a phenylphosphonic dichloride and phosphorus pentachloride in a ratio of from about 0.01:
- 1 to about 10;
1 for a time and at a temperature sufficient to carry out the conversion of the carboxylic acid group to a trichloromethyl group.
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Abstract
Method for converting carboxylic acid groups to trichloromethyl groups which comprises contacting a compound containing a carboxylic acid group with a phenylphosphonic dichloride and phosphorus pentachloride and recovering the thus produced product.
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Citations
13 Claims
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1. A method for converting a carboxylic acid group on the ring of an aryl or nitrogen heteroaromatic compound to a trichloromethyl group which comprises contacting said aryl or nitrogen heteroaromatic compound with a phenylphosphonic dichloride and phosphorus pentachloride in a ratio of from about 0.01:
- 1 to about 10;
1 for a time and at a temperature sufficient to carry out the conversion of the carboxylic acid group to a trichloromethyl group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- 1 to about 10;
Specification