848153-28-6Relevant articles and documents
Hydrogen peroxide based oxidation of hydrazines using HBr catalyst
Du, Wanting,Ma, Zichao,Shao, Liming,Wang, Jian
, (2021/11/18)
Azo compounds (RN = NR′) are an important class of organic molecules that find wide application in organic synthesis. Herein, we report an efficient, practical and metal-free oxidation of hydrazines (RNH-NHR’) to azo compounds using 5 mol% HBr and hydrogen peroxide as terminal oxidant. This new method has been demonstrated by 40 examples with excellent yields. In addition, we showcased two examples of the one-pot sequential reactions involving our hydrazine oxidation/hydrolysis/Heck reaction or Cu-catalyzed N-arylation with aryl boronic acid. The distinct advantages of this protocol include metal-free catalysis, waste prevention, and easy operation.
Selective Functionalization of Graphene at Defect-Activated Sites by Arylazocarboxylic tert-Butyl Esters
Halbig, Christian E.,Lasch, Roman,Krüll, Jasmin,Pirzer, Anna S.,Wang, Zhenping,Kirchhof, Jan N.,Bolotin, Kirill I.,Heinrich, Markus R.,Eigler, Siegfried
supporting information, p. 3599 - 3603 (2019/02/01)
The development of versatile functionalization concepts for graphene is currently in the focus of research. Upon oxo-functionalization of graphite, the full surface of graphene becomes accessible for C?C bond formation to introduce out-of-plane functional
Synthesis of Hydrazines via Radical Generation and Addition of Azocarboxylic tert -Butyl Esters
Ru, Chen-Hao,Guo, Shi-Huan,Pan, Gao-Fei,Zhu, Xue-Qing,Gao, Ya-Ru,Wang, Yong-Qiang
supporting information, p. 1910 - 1913 (2018/04/16)
A new chemistry of azo compounds that is a radical generation and addition in situ of azocarboxylic tert-butyl esters to synthesize hydrazines has been described. The protocol provides a novel strategy for the synthesis of various hydrazines. The advantag
