PHOTOCHEMICAL TRANSFORMATION .79. [6-PHOTOCYCLOADDITIONS IN FACE-TO-FACE BENZO(6])PYRIDAZINO SYSTEMS EN-ROUTE TO AZAPAGODANES (AZADODECAHEDRANES)/

Authors
MATHEW T KELLER M HUNKLER D PRINZBACH H
Citation
T. Mathew et al., PHOTOCHEMICAL TRANSFORMATION .79. [6-PHOTOCYCLOADDITIONS IN FACE-TO-FACE BENZO(6])PYRIDAZINO SYSTEMS EN-ROUTE TO AZAPAGODANES (AZADODECAHEDRANES)/, Tetrahedron letters, 37(26), 1996, pp. 4491-4494
Citations number
29
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
37
Issue
26
Year of publication
1996
Pages
4491 - 4494
Database
ISI
SICI code
0040-4039(1996)37:26<4491:PT.[IF>2.0.ZU;2-G
Abstract
In two very proximate syn-periplanar (''face-to-face'') benzo/pyridazi no systems (shortest pi,pi-distances of ca. 3.0 Angstrom, X-ray), phot oequilibration (ratio ca. 2:1) with the cyclobutane-photo[6+6]cycloadd ucts has been installed by 254 nm irradiation. The hetarene/arene ''di mers'' are thermally persistent enough as to allow pagodane formation through the cycloaddition of dienophiles. Copyright (C) 1996 Elsevier Science Ltd