55662-89-0Relevant articles and documents
Highly efficient CuBr-catalyzed cross-dehydrogenative coupling (CDC) between tetrahydroisoquinolines and activated methylene compounds
Li, Zhiping,Li, Chao-Jun
, p. 3173 - 3176 (2005)
A novel and efficient C-C bond-formation method was developed: the cross-dehydrogenative coupling (CDC) reaction catalyzed by copper bromide in the presence of an oxidizing reagent, tBuOOH. The CDC reaction provides a simple and efficient catalytic method to construct β-amino diesters and β-dicyano amines by a combination of two different sp3 C-H bonds followed by C-C bond formation. Wiley-VCH Verlag GmbH & Co. KGaA, 2005.
Harnessing visible-light energy for unbiased organic photoelectrocatalysis: Synthesis of: N -bearing fused rings
Gong, Ming,Huang, Mengmeng,Kim, Jong Seung,Kim, Jung Keun,Li, Yabo,Wu, Yangjie,Zhang, Jianye
supporting information, p. 837 - 845 (2022/02/02)
In this research, we realized the conversion of visible light to electrical energy and C-H activation by the synergistic catalytic effect of visible-light and photoelectric current. An atom-economical and environment-friendly self-biasing interfacial photo-electrocatalytic method for cascade C-H activation/cyclization is provided to construct N-containing fused ring compounds using an m-BiVO4 film as a photoanode. There are obvious advantages of this transformation due to no external bias and a small overpotential, saving electrical energy and avoiding excessive oxidation of malononitrile to achieve better chemical reactivity and selectivity. Meanwhile, the recovered photoanode could be used more than ten times. This journal is
Flowers of the plant genusHypericumas versatile photoredox catalysts
Wang, Jun-Jie,Schwedtmann, Kai,Liu, Kun,Schulz, Stephen,Haberstroh, Jan,Schaper, Gerrit,Wenke, Anja,Naumann, Julia,Wenke, Torsten,Wanke, Stefan,Weigand, Jan J.
supporting information, p. 881 - 888 (2021/02/09)
Photoredox catalysis is a powerful and modern strategy for the synthesis of complex organic molecules. So far, this field has relied on the use of a limited range of metal-based chromophores or artificial organic dyes. Here, we show that the ubiquitous plant genusHypericumcan be used as an efficient photoredox catalyst. The dried flowers efficiently catalyze two typical photoredox reactions, a photoreduction and a photooxidation reaction, with a versatile substrate scope. Constitution analysis of the worldwide available plant genus indicated that naphthodianthrones, namely the compounds of the hypericin family, are crucial for the photocatalytic activity of the dried plant material.In situUV-vis spectroelectrochemical methods provide insights into the mechanism of the photoreduction reaction where the radical dianion of hypericin (Hyp˙2?) is the catalytically active species. Our strategy provides a sustainable, efficient and an easy to handle alternative for a variety of visible light induced photocatalytic reactions.