Synthesis of new polydentate pyrazolyl-ethene ligands by interaction of 1H-pyrazole and 1,1,2,2-tetrabromoethane in a superbasic medium
| Parent link: | Journal of Heterocyclic Chemistry: Scientific Journal Vol. 48, iss. 3.— 2011.— [P. 645–651] |
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| Other Authors: | , , , , |
| Summary: | Title screen Reaction of pyrazole and 1,1,2,2-tetrabromoethane in a superbasic medium dimethylsulfoxide-potassium hydroxide was investigated, and a number of pyrazolyl- and bromo-substituted ethenes, which are the products of concurrent substitution and elimination reactions, were identified. Carrying out the reaction using different reagent mole ratios allowed to selectively isolate Z-1,2-bis(pyrazol-1-yl)ethene, 1,1,2-tris(pyrazol-1-yl)ethane, and 1,1,2,2-tetrakis(pyrazol-1-yl)ethane. Crystal structure of {Z-1,2-bis (pyrazol-1-yl)ethene}dichlorozinc was established using X-ray diffraction method. J. Heterocyclic Chem., (2011). |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1002/jhet.566 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=639656 |