Carbon-carbon bond cleavage reactions of 1,2-diamines initiated by photoinduced electron transfer

Autor:	M. A. Kellett, David G. Whitten
Rok vydání:	1995
Předmět:	chemistry.chemical_classification chemistry.chemical_compound chemistry Carbon–carbon bond Diamine Kinetic isotope effect General Chemistry Electron acceptor Proton-coupled electron transfer Photochemistry Redox Acceptor Photoinduced electron transfer
Zdroj:	Research on Chemical Intermediates. 21:587-611
ISSN:	1568-5675 0922-6168
DOI:	10.1163/156856795x00440
Popis:	The oxidative photofragmentations of a series of 1,2-diamines have been studied in reaction with photoexcited electron acceptors under a variety of conditions. All the diamines were found to undergo a clean two electron redox reaction (in the presence of trace amounts of water) to produce after cleavage, two free amines, two aldehydes, and the reduced acceptor. Investigation of the role of variables (solvent, acceptor, temperature, isotope effects, etc.) on the quantum yields for diamine fragmentation leads to a mechanistic picture in which the critical step in the reaction is an unassisted fragmentation. Although formally similar to the photoreactions of previously studied aminoalcohols, the photoinduced electron transfer fragmentation reaction of 1,2-diamines shows key mechanistic differences and is apparently both a more general reaction and significantly more rapid in several cases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fa457a933a38095d0d036177df6fa8fa https://doi.org/10.1163/156856795x00440 Zobrazit plný text záznamu Full text from SpringerLink