Contrasteric Diels–Alder reactions of 5-methyl-5-phenylcyclopentadiene
✍ Scribed by Masaru Ishida; Makoto Itakura; Hiroshi Tashiro
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- French
- Weight
- 436 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
The frontier molecular orbital of 5-phenylcyclopentadiene was predicted on the basis of the orbital mixing rule to deform to favor the Diels-Alder reaction in a syn contrasteric manner. The prediction was substantiated experimentally by the reactions of 5-methyl-5phenylcyclopentadiene with dienophiles to afford the syn attack products, exclusively.
📜 SIMILAR VOLUMES
Some straightforward chemical transformations of oxazine diol 4, which was obtained from sorbaldehyde 2 by an asymmetric hetero Diels-Alder reaction followed by osmylation, led to the protected dihydroxypyrrolidine-aldehyde 8a and, after basic epimerisation, to 8b. Reduction of the aldehyde moiety a