ChemInform Abstract: Laser Flash Photolysis of 2-Diazo-1,3-diphenyl-1,3-propanedione: An Unusual Long-Lived Triplet as a Reaction Intermediate

Autor:	James F. Cameron, F. Ortica, Juan C. Scaiano, G. Pohlers, A. Zampini
Rok vydání:	2010
Předmět:	chemistry.chemical_compound chemistry Photodissociation Flash photolysis Ketene Wolff rearrangement Diazo General Medicine Reaction intermediate Triplet state Photochemistry Carbene
Zdroj:	ChemInform. 31
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.200033050
Popis:	Laser flash photolysis of 2-diazo-1,3-diphenyl-1,3-propanedione (DBD) is presumed to involve a short-lived carbene, followed by Wolff rearrangement to a long-lived ketene. We have detected ketene ylides following photolysis of DBD in the presence of amines but not with pyridine. The triplet state of DBD lives several microseconds, an unusual observation for a diazo compound; however, the triplet is not a ketene precursor, which must result from excited singlet state fragmentation of DBD.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ad9fea4378adf143e8d35fd65f52ef7 https://doi.org/10.1002/chin.200033050 Zobrazit plný text záznamu Plný text