Diels-Alder Addition to Pyrroles
β Scribed by Mandell, Leon; Piper, James U.; Pesterfield, Charles E.
- Book ID
- 121430357
- Publisher
- American Chemical Society
- Year
- 1963
- Tongue
- English
- Weight
- 304 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0022-3263
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
o-Bensoquinones can behave either as dienes or as dienophiles in Diels-Alder reactions. Usually, however, they react as dienes, particularly if they are substituted. (1) Recently we described(") the isolation of Diels-Alder adducts from cyclopentadiene and three o-bensoquinones. In each case, the qu
The &ij~& ivukamo~~cuRdt~ Vi&-Aedeh 4ieation 04 3-&kwyL 3H-pyww'?u (2-azadiwe hyht~) LA mh.ted. Than 3ff-py~~oJ?u ahe in hi,& genehcubd dhom ZH-py44o.h. Les aza-1 di@nes sont tr@s peu reactifs vis-a-vis des dienophiles
Only a few examples of Diels-Alder additions to monocyclic aromatic hydrocarbons are known so far. Benzyne (1) and hexaf .o-2-butyne (2) add to benzene, and the adducts of hexafluoro-2-butyne (2) at;,. dicyanoacetylene (3) to durene have been prepared. We have found that 2,3-dlcyanoblcyclo[2.2.2loct