prov:value
| - The substituents formed by such conversion are represented by the following formulae: ##STR5## wherein M is an alkali metal such as Na, K or Li, and A is ammonia or a nitrogen-containing basic organic compound such as aliphatic primary amines such as methylamine, ethylamine, propylamine, isopropylamine, butylamine, isobutylamine, sec-butylamine, tertbutylamine, pentylamine, isopentylamine, hexylam
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