BRUNNER, H and PRESTER, F (1991) ASYMMETRICAL CATALYSIS .70. HIGHLY ENANTIOSELECTIVE COBALT-CATALYZED HOMO DIELS-ALDER REACTION OF NORBORNADIENE WITH ACETYLENES. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 414 (3). pp. 401-409. ISSN 0022-328X,
Full text not available from this repository.Abstract
The enantioselective homo Diels-Alder reaction of norbornadiene with monosubstituted acetylenes affords optically active deltacyclenes. The catalyst is a cobalt complex, which is prepared in situ from Co(acac)3, Et2AlCl, and optically active phosphines. With catalysts containing Norphos, a quantitative yield can be achieved for 4-phenyl- and 4-n-butyldeltacyclene with an enantiomeric excess of more than 98%. For some catalysts the solvent has a decisive influence on the chemical and optical yield.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HYDROGENATION; ENANTIOMERS; COMPLEXES; NORPHOS; ACIDS; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54909 |
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