1985-06-01
Phase-transfer-catalyzed methylation of hydroxyaromatic acids, hydroxyaromatic aldehydes, and aromatic polycarboxylic acids
Publication
Publication
Environmental Science and Technology
,
Volume 19
-
Issue 6
p. 507-
512
The phase-transfer-catalyzed methylation of hydroxyaromatic acids, hydroxyaromatic aldehydes, and aromatic polycarboxylic acids with iodomethane or dimethyl sulfate in dichloromethane-water solvent system at room temperature using tetra-n-butylammonium hydroxide provided moderate (68%) to near quantitative yields of O-methylation products. It was observed that iodomethane tends to give more ring methylation products than dimethyl sulfate under identical conditions. The methylation products were identified by their spectral characteristics. The 13C nuclear magnetic resonance specta of the methyl derivatives are discussed in detail.
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Journal | Environmental Science and Technology |
Citation |
Ramaswamy, S. (Sowmianarayanan), Malalyandi, M. (Murugan), & Buchanan, G.W. (1985). Phase-transfer-catalyzed methylation of hydroxyaromatic acids, hydroxyaromatic aldehydes, and aromatic polycarboxylic acids. Environmental Science and Technology, 19(6), 507–512.
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