作者:Mikhail V. Zlokazov、Antonina V. Lozanova、Vladimir V. Veselovsky
DOI:10.1070/mc2003v013n06abeh001835
日期:2003.1
A new type of ring-chain tautomerism, which consists in the reversible conversion of gamma-halobutyric acid dialkylamides into dialkyl(tetrahydro-2,2-furylidene)ammonium halides, was found.
New type of ring-chain tautomerism. Direct evidence from<sup>1</sup>H NMR spectroscopy
作者:M. V. Zlokazov、A. V. Lozanova、V. V. Veselovsky
DOI:10.1023/b:rucb.0000035634.33295.0c
日期:2004.3
A new type of ring-chain tautomerism consisting in the reversible transformation of 4-(5-)haloalkanecarboxylic acid dialkylamides into dialkyl(tetrahydrofuran-2-ylidene)- and dialkyl(tetrahydropyran-2-ylidene)ammonium halides, respectively, was found and studied by 1H NMR spectroscopy.