Reactions of living polytetrahydrofuran with amines: 2. Other tertiary amines
作者： A.V. Cunliffe , D.H. Richards , F. Robertson
DOI: 10.1016/0032-3861(81)90084-7
关键词: Isoquinoline 、 Tributylamine 、 Diethylaniline 、 Acridine 、 Oxonium ion 、 Medicinal chemistry 、 Triphenylamine 、 Cationic polymerization 、 Pyridine 、 Organic chemistry 、 Chemistry
摘要: Abstract The reactions of living cationic polyTHF with tertiary amines have been examined. In all cases reaction results in the formation quaternary salts which do not exchange oxonium ions. rates reflect basicities amines; for heterocycles order is 4-ethyl pyridine > isoquinoline quinoline acridine, and aliphatic triethylamine tributylamine diethylaniline. Triphenylamine does react a timescale several hours but more basic quantitatively under equimolar conditions at −10°C within minutes. Di-tertiary studied as linking agents tetramethylethylenediamine (TMEDA) has shown to be virtually quantitative. 4,4′-bipyridyl appears so efficient, pyrazine reacts only monofunctionally.
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