Märkl, Gottfried and Hennig, Rüdiger (1996) Coupling of alkynyl(2,4,6-tri-tert-butylphenyl)phosphanes with cuprous chloride. LIEBIGS ANNALEN-RECUEIL, 1996 (12). pp. 2059-2064. ISSN 0947-3440
Full text not available from this repository.Abstract
Coupling of alkynyl(2,4,6-tri-tert-butylphenyl)phosphanes 2 with n-butyllithium and cuprous chloride gives 3,4-diphospha-1,5-hexadiynes 3 or cuprous chloride complexes 8 of 3,4-bis(phosphinidene)cyclobutenes 5, depending on the bulkiness of the substituent at the triple bond. The exclusive formation of racemic 3,4-diphospha-1,5-hexadiynes 3, which was proven by P-31- and C-13-NMR spectroscopy, explains the stereoselective rearrangement to only symmetrical cyclobutenes 5.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COORDINATED PHOSPHORUS-COMPOUNDS; COPE REARRANGEMENT; diphosphanes; hetero Cope rearrangement; cuprous chloride; alkynylphosphanes; low-coordinated phosphorus compounds |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 May 2023 11:33 |
| Last Modified: | 25 May 2023 11:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51308 |
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