Catalytic effect on the selectivity of the Diels—Alder reaction
✍ Scribed by V. Branchadell; A. Oliva; J. Bertran
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 368 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
L'w:~ 1111' MINDO/3 msthod, variation of thr potential barrier for the Dick-Alder rcaclion between I-hydroxybutadicnc .md s~ralsin, cJtA?'zcd b? BF3 and NH:. hJs been studied. An interpretaGon of the experimental facts about the inrrc.tsc of rqIosrlrcIiviry and stereo~ciccti~ it\ for Dick-Alder rextions catalyzed by Lewis acids is &XI.
📜 SIMILAR VOLUMES
The activation and reaction volumes (∆V /∆V) were showing negative volumes of activation (∆V Ͻ 0) whereas the others are slightly retarded (∆V Ͼ 0). From the analysis determined for the retro Diels-Alder reactions of the parent dihydrobarrelene 1a, its 2-cyano derivative 1b, the exo and of the volum
The effect of tbc correlation energy on tbc mecbanisrn of lbc butadicnc + ethylene reaction has been studied by mans of Mbllcr-l'lesset perturbation theory. It is drown that its introduction stabi!izcs prcferenti.dly tllc asynchronous structures, thus favouring tlw a%yncltronistn of the process. -0