Photocycloaddition of cis-1,2-dihydrophthalic anhydride to benzene and arenes
โ Scribed by N.C. Yang; Charles V. Neywick; Kasturi Srinivasachar
- Book ID
- 104224247
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- French
- Weight
- 170 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
Electron-deficient ethylenes such as maleic anhydride, maleimides, acrylonitrile, and methyl vinyl ketone undergo exclusive 1,2-photocycloaddition to benzene. 1 In all these cases the addition reaction is also stereospecific, giving rise to exo adducts (l), 273 -and it is significant
The photocycloaddition of dimethyl acetylenedicarboxylate (DMAD) to carbon-carbon multiple bonds to give cyclobutene derivatives has been of considerable interest, and its reactions with aromatic umlecules have been successfully used for the synthesis of cyclooctatetraene derivatives 2 .
Intramolecular 1,2-arone-alkene photocycloaddition of 2-alkenyl-4-chromanoues gave complex multicyclic oxatctracyclotetradecanediones which on internal photo-and microwave induced thermal rearrangements provided a diverse array of compounds with [3.3.0]bieyclooetane carbon frame work. The stereoand