prov:value
| - Bodor (U.S. Pat. No. 4,160,099; U.S. Pat. No. 4,254,765; U.S. Pat. No. 4,061,722; Bodot, N. 1981; Bodor, N. et al., 1980(a); Bodor, 1984; Bodor, N. et al., 1980(b)) has developed a class of labile quaternary ammonium salts having a general structure depicted inFormula 1. ##STR1##In this structure, R and R.sub.1 each represent hydrogen, alkyl, or aryl; X is oxygen or sulfur and Y is a halogen.
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