INTRAMOLECULAR [2-PYRIDONE MOIETIES(2] PHOTOCYCLOADDITION OF JUXTAPOSED 4)

Authors
JOHNSON BL KITAHARA Y WEAKLEY TJR KEANA JFW
Citation
Bl. Johnson et al., INTRAMOLECULAR [2-PYRIDONE MOIETIES(2] PHOTOCYCLOADDITION OF JUXTAPOSED 4), Tetrahedron letters, 34(35), 1993, pp. 5555-5558
Citations number
22
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
34
Issue
35
Year of publication
1993
Pages
5555 - 5558
Database
ISI
SICI code
0040-4039(1993)34:35<5555:I[MPOJ>2.0.ZU;2-C
Abstract
Refluxing 4-hydroxypyridine and alpha,alpha'-dibromo-o-xylene in an et hanolic sodium ethoxide solution affords alpha,alpha'-di(4-pyridon-1-y l)-o-xylene (1) which undergoes a novel [2+2] photocycloaddition react ion in 3:7 ethanol-ether giving .20(5,15).0(6,16)]hexadeca-2,8-diene-4 ,7-dione(2). The structure of 2 was determined by x-ray crystallograph ic analysis.