BIPHOTONIC GENERATION OF CARBENES AND CARBOCATIONS BY LASER FLASH-PHOTOLYSIS

Authors
KIRMSE W KRZOSSA B STEENKEN S
Citation
W. Kirmse et al., BIPHOTONIC GENERATION OF CARBENES AND CARBOCATIONS BY LASER FLASH-PHOTOLYSIS, Tetrahedron letters, 37(8), 1996, pp. 1197-1200
Citations number
19
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
37
Issue
8
Year of publication
1996
Pages
1197 - 1200
Database
ISI
SICI code
0040-4039(1996)37:8<1197:BGOCAC>2.0.ZU;2-H
Abstract
In protic solvents, trans-2,3-diphenylaziridinylimines of diaryl keton es are (flash-)photolyzed in two consecutive steps, via diaryldiazomet hanes and diarylcarbenes, to give eventually diarylmethyl cations. The same intermediates arise from diazo ketones by way of Wolff rearrange ment and ketene photolysis. The method has been used to demonstrate th e protonation of fluorenylidene by hexafluoroisopropanol.