A Novel Route to 2-Ethoxybutadienes; Diels-Alder Reaction of 1,2-λ5-Oxaphosphorines
✍ Scribed by Prof. Dr. Hans-Jürgen Bestmann; Dipl.-Chem. Kurt Roth
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 221 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0044-8249
No coin nor oath required. For personal study only.
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## Abstract The title compounds 8 and 1 have been synthesized in three steps each from 1,2‐dibromo[2.2]paracyclophan‐1‐ene (2) and 1,2,9,10‐tetrabromo[2.2]paracyclophane‐1,9‐diene (4), respectively. Copper‐mediated coupling of vinyl bromides 2 and 4 with methyl‐ and phenylmagnesium bromide gives su
The density functional theory level (B3LYP/6-311G \* \* ) computations of the Diels-Alder (DA) reactions of 5,6-dihydrothiazolo[3,2-d][1,4,2]diazaphospholes with 1,3-butadiene and with isoprene confirm pericyclic mechanism via asynchronous transition states. The aromatic character of the transition