Diels-Alder reaction of furan with some dienophiles
β Scribed by T.A. Eggelte; H. de Koning; H.O. Huisman
- Book ID
- 108374129
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 311 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0040-4020
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π SIMILAR VOLUMES
The stereochemical outcome of intramolecular Diels-Alder reactions of furans with Z-and E-2-ene-1,4-dione units attached by a bridging chain to C-2 of the furan results from modification of the steric demands of the bridging chain by the preference of the external activating group to adopt an endost
Thiobenzophenone and its 4,4'-dichloro derivative combine as dienes (C= S + aromatic CC bond) with dimethyl acetylenedicarboxylate, methyl propiolate, dicyanoacetylene, and cyclooctyne furnishing lH-2-benzothiopyrans 10, 11, 13, 14, the primary [4+2] cycloaddition is followed by 1,3 prototropy. In t