16338-97-9Relevant articles and documents
Substrate promiscuity of ortho-naphthoquinone catalyst: Catalytic aerobic amine oxidation protocols to deaminative cross-coupling and n-nitrosation
Kim, Hun Young,Oh, Kyungsoo,Si, Tengda
, p. 9216 - 9221 (2019/10/08)
ortho-Naphthoquinone-based organocatalysts have been identified as versatile aerobic oxidation catalysts. Primary amines were readily cross-coupled with primary nitroalkanes via deaminative pathway to give nitroalkene derivatives in good to excellent yields. Secondary and tertiary amines were inert to ortho-naphthoquinone catalysts; however, secondary nitroalkanes were readily converted by ortho-naphthoquinone catalysts to the corresponding nitrite species that in situ oxidized the amines to the corresponding N-nitroso compounds. Without using harsh oxidants in a stoichiometric amount, the present catalytic aerobic oxidation protocol utilizes the substrate promiscuity feature to provide a facile access to amine oxidation products under mild reaction conditions.
Domino reaction of a gold catalyzed 5-: Endo-dig cyclization and a [3,3]-sigmatropic rearrangement towards polysubstituted pyrazoles
Verlee, Arno,Heugebaert, Thomas,Van Der Meer, Tom,Kerchev, Pavel,Van Breusegem, Frank,Stevens, Christian V.
supporting information, p. 9359 - 9363 (2019/01/03)
Pyrazoles are important heterocyclic compounds with a broad range of biological activities. A new procedure toward tri- or tetrasubstituted pyrazoles has been developed, via a one-pot gold catalyzed synthesis from hydrazines with alkynyl aldehydes or keto
Copper(II)-catalyzed oxidative N-nitrosation of secondary and tertiary amines with nitromethane under an oxygen atmosphere
Sakai, Norio,Sasaki, Minoru,Ogiwara, Yohei
supporting information, p. 11638 - 11641 (2015/07/15)
The combination of a catalytic amount of Cu(OTf)2 and less than a stoichiometric amount of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) under an O2 atmosphere effectively promoted the N-nitrosation of both secondary aromatic/aliphatic amines and tertiary aromatic amines with nitromethane (CH3NO2) leading to the preparation of N-nitrosamine derivatives.
Iodide-catalyzed synthesis of N-nitrosamines via C-N cleavage of nitromethane
Zhang, Jie,Jiang, Jiewen,Li, Yuling,Wan, Xiaobing
, p. 11366 - 11372 (2013/12/04)
An iodide-catalyzed process to synthesize N-nitrosamines has been developed using TBHP as the oxidant. The mild catalytic system succeeded in cleaving the carbon-nitrogen bond in nitromethane. This methodology uses commercially available, inexpensive catalysts and oxidants and has a wide substrate scope and operational simplicity.
N-NITROSAMINES FROM THE REACTION OF SULFAMOYLCHLORIDES WITH SODIUM NITRITE
Warner, John C.,Nakajima, Masayuki,Anselme, Jean-Pierre
, p. 919 - 920 (2007/10/02)
N,N-Dialkylsulfamoyl chlorides react smoothly with sodiun nitrite in acetonitrile to afford the corresponding N-nitrosamines in nearly quantitative yields.