Mechanistic Studies on Bioinspired Aerobic C–H Oxidation of Amines with an <i>ortho</i>-Quinone Catalyst
作者:Ruipu Zhang、Yan Qin、Long Zhang、Sanzhong Luo
DOI:10.1021/acs.joc.8b02948
日期:2019.3.1
different catalytic pathways were discovered for the reductive half reactions: for primary amines, the reaction was found to proceed via a transamination pathway, while the reactions with secondary amines and tertiary amines proceeded via hydride transfer. We also found that the amine substrates could significantly promote the regeneration of the ortho-quinone catalyst in the oxidative half reaction, in which
Dehydrogenation of N-Heterocycles by Superoxide Ion Generated through Single-Electron Transfer
作者:Yuan-Qiong Huang、Hong-Jian Song、Yu-Xiu Liu、Qing-Min Wang
DOI:10.1002/chem.201705202
日期:2018.2.9
some of the methods are hampered by long reaction times, harsh conditions, and the need for catalysts that are not readily available. This work reports a novel method for dehydrogenation of N‐heterocycles. Specifically, O2.− generated in situ acts as the oxidant for N‐heterocycle substrates that are susceptible to oxidation through a hydrogen atom transfer mechanism. This method provides a general
A strategy for photochemical oxidative cleavage of the aminomethylene group at the C2 position of indole was developed to synthesize C2-carbonyl indoles. The reaction was initiated by the photochemical oxidation of N1, followed by a water-assisted concerted H-shift by abstracting hydrogen from aminomethylene. Bromopyridine was discovered to play dual roles as an oxidant for the regeneration of photocatalysts
开发了吲哚 C2 位氨基亚甲基的光化学氧化裂解策略以合成 C2-羰基吲哚。该反应由 N1 的光化学氧化引发,随后通过从氨基亚甲基中提取氢来进行水辅助的协同 H 转移。发现溴吡啶作为光催化剂再生的氧化剂和单电子转移过程的促进剂发挥双重作用。
Freter,K. et al., Justus Liebigs Annalen der Chemie, 1965, vol. 684, p. 159 - 187
作者:Freter,K. et al.
DOI:——
日期:——
A facile and efficient synthesis of tetrahydro-β-carbolines
This Letter describes a convenient, efficient, and clean synthesis of various tetrahydro-beta-carbolines catalyzed by propane phosphonic acid anhydride T3P (R) under microwave irradiation. (c) 2013 Elsevier Ltd. All rights reserved.