BRUNNER, H and SCHECK, T (1992) ASYMMETRIC CATALYSIS .77. NEW OPTICALLY-ACTIVE PYRAZOLE DERIVATIVES FOR ENANTIOSELECTIVE CATALYSIS. CHEMISCHE BERICHTE-RECUEIL, 125 (3). pp. 701-709. ISSN 0009-2940,
Full text not available from this repository.Abstract
Starting from the amines 3 - 6 and the dipyrazolopyrazinedione 2, the optically active (pyrazolylmethyl)amines 11 - 14 have been synthesized. Furthermore, the preparation of the (+)-camphor-derived optically active pyrazole 17 is described. Pyrazoles 11 - 13 and 17 are introduced as chiral building blocks into the 2-(1-pyrazolyl)pyridines 30 - 33. The optically active compounds 23 - 25 are formed from 2-[3(5)-pyrazolyl]pyridine and 2,6-bis[3(5-)pyrazolyl]pyridine, respectively, and (+)-3-(bromomethyl)pinane. The pyrazole derivatives 27 - 29 contain (+)-(1-phenylethyl)hydrazine as the optically active component.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COORDINATION CHEMISTRY; LIGANDS; PYRAZOLES, OPTICALLY ACTIVE; PYRIDINES, 2-[3(5)-PYRAZOLYL]PYRIDINE, 2,6-BIS[3(5)-PYRAZOLYL]PYRIDINE, 2-(1-PYRAZOLYL)PYRIDINE |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54616 |
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