In this work, the use of N-acyloxybenzamides as efficient acyl nitrene precursors under photoredox/iron dual catalysis is reported. The resulting acyl nitrenes could be captured by various types of C–H bonds and S- or P-containing molecules. Mechanism investigations suggested that the formation of the acyl nitrene from the N-acyloxybenzamide occurs by a photoredox process, and it is believed that in
在这项工作中,报道了在光氧化还原/铁双重催化下使用N-酰氧基苯甲酰胺作为有效的酰基氮烯前体。由此产生的酰基氮烯可以被各种类型的 C-H 键和含 S 或 P 的分子捕获。机理研究表明,由N-酰氧基苯甲酰胺形成酰基氮烯是通过光氧化还原过程发生的,并且认为在该氧化还原过程中,N-酰氧基苯甲酰胺的氧化 N-H 键断裂发生在还原性 N-O 键断裂之前N-酰氧基苯甲酰胺。
The Use of Xanthydrol as a Reagent for the Characterization of Primary Amides
作者:R. F. Phillips、Burnett M. Pitt
DOI:10.1021/ja01247a026
日期:1943.7
Metal-free cross-dehydrogenative C–N coupling of azoles with xanthenes and related activated arylmethylenes
A metal-free C(sp(3))-H/N-H cross-coupling of azoles with xanthenes and related activated arylmethylenes is presented. Both the use of azoles and the activation pattern of C(sp(3))-H sources are essential for this transformation. In the presence of 2.0 equiv of benzoyl peroxide (BPO), methylenes bearing a heteroatom-bridged bisaryl group reacted with various azolic N-H sources to afford C-N bond forming products in usually excellent or quantitative yields, and the diphenylmethane and methylenes coactivated by a phenyl group and an adjacent heteroatom are less reactive. Mechanistic investigations suggest that a radical/radical cross-coupling pathway might be involved.[GRAPHICS].
Bredereck et al., Chemische Berichte, 1959, vol. 92, p. 1139,1146
作者:Bredereck et al.
DOI:——
日期:——
Adriani, Recueil des Travaux Chimiques des Pays-Bas, 1916, vol. 35, p. 184