Back to Search
Start Over
UV irradiation of arylidene-β-ionones in the presence of dioxygen: regioselective formation of stable endoperoxides
- Source :
-
Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry . Feb2003, Vol. 44 Issue 9, p1943. 3p. - Publication Year :
- 2003
-
Abstract
- UV irradiation of (E,E)-arylidene-β-ionones 1 leads to photoisomerization resulting in (Z,E) arylidene-β-ionones 2, which undergo electrocyclization to 1,7,7-trimethyl-3-(E-2′-arylethenyl)-2-oxabicyclo[4.4.0]deca-3,5-dienes 3, and the latter in the excited state add regioselectively, involving only the electron-rich endocyclic diene, to molecular oxygen affording highly stable endoperoxides 6. [Copyright &y& Elsevier]
- Subjects :
- *ULTRAVIOLET radiation
*IONONES
*CHARGE exchange
Subjects
Details
- Language :
- English
- ISSN :
- 00404039
- Volume :
- 44
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Tetrahedron Letters: International Organ for the Rapid Publication of Preliminary Communications in Organic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 9050811
- Full Text :
- https://doi.org/10.1016/S0040-4039(03)00086-8