19485-35-9Relevant articles and documents
NOVEL INDAZOLE COMPOUND OR SALT THEREOF
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, (2021/09/02)
An indazole compound represented by the following Formula (I) or a salt thereof: wherein X, R1, R2, ring A, L1, L2, L3, and R5 are as defined in this specification.
A tropylium annulated N-heterocyclic carbene
Appel, Sebastian,Brüggemann, Peter,Ganter, Christian
supporting information, p. 9020 - 9023 (2020/08/17)
Derivatives of the cationic tropylium annulated imidazolylidene ITrop+ are obtained by hydride abstraction from related cycloheptatriene compounds. Spectroscopic, structural and theoretical data indicate that, as a cationic relative of benzimidazolylidenes, ITrop+ has highly reduced σ-donor and strong π-acceptor character.
Estimated rate constants for hydrogen abstraction from n-heterocyclic carbene-borane complexes by an alkyl radical
Solovyev, Andrey,Ueng, Shau-Hua,Monot, Julien,Fensterbank, Louis,Malacria, Max,Lacote, Emmanuel,Curran, Dennis P.
supporting information; experimental part, p. 2998 - 3001 (2010/08/19)
Rate constants for hydrogen abstraction by a nonyl radical from 20 complexes of N-heterocyclic carbenes and boranes (NHC-boranes) have been determined by the pyridine-2-thioneoxycarbonyl (PTOC) competition kinetic method at a single concentration point. The rate constants range from 4 to 8 × 104 M-1 s-1. They show little dependence on the electronic properties of the carbene core, but there is a trend for increasing rate constants with decreasing size of the carbene N-substituents. Two promising new reagents with small N-substituents (R = Me) have been identified.