Unusual Reaction Constant for Hydride Transfer from a Carbanion to 9-Arylxanthyliums

Autor:	Xiaoqing Zhu, Fengrui Liu
Rok vydání:	2014
Předmět:	Reaction rate constant Chemistry Hydride Organic Chemistry Kinetics Reaction system Physical and Theoretical Chemistry Photochemistry Dowd–Beckwith ring-expansion reaction Ion Carbanion
Zdroj:	European Journal of Organic Chemistry. 2014:7329-7332
ISSN:	1434-193X
DOI:	10.1002/ejoc.201403023
Popis:	The reaction constant (ρ) from the kinetics for hydride transfer from a carbanion (XH–) to 9-arylxanthylium ions (9-GPhXn+) in CH3CN was unusually negative. Thermodynamic analysis indicated that ρ for the simple hydride transfers (only involved with release and capture of a hydride anion) should be positive; this is in contrast to the kinetics results. Consequently, this reaction is not a simple hydride transfer. An “intermediate” was also found in the reaction system, the formation of which resulted in the unusual ρ.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::870be041a0190d3d73dbddf509e594f6 https://doi.org/10.1002/ejoc.201403023 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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