68899-97-8Relevant academic research and scientific papers
Cobalt(II)-Catalyzed Isocyanide Insertion Reaction with Sulfonyl Azides in Alcohols: Synthesis of Sulfonyl Isoureas
Jiang, Tian,Gu, Zheng-Yang,Yin, Ling,Wang, Shun-Yi,Ji, Shun-Jun
, p. 7913 - 7919 (2017)
A Co(II)-catalyzed isocyanide insertion reaction with sulfonyl azides in alcohols to form sulfonyl isoureas via nitrene intermediate has been developed. This protocol provides a new, environmentally friendly, and simple strategy for the synthesis of sulfonyl isourea derivatives by employing a range of substrates under mild conditions.
Atomically defined nanopropeller Fe3Co6Se8(Ph2PNTol)6: Functional model for the electronic metal-support interaction effect and high catalytic activity for carbodiimide formation
Kephart, Jonathan A.,Mitchell, Benjamin S.,Chirila, Andrei,Anderton, Kevin J.,Rogers, Dylan,Kaminsky, Werner,Velian, Alexandra
, p. 19605 - 19610 (2020)
Atomically defined interfaces that maximize the density of active sites and harness the electronic metal-support interaction are desirable to facilitate challenging multielectron transformations, but their synthesis remains a considerable challenge. We re
Cobalt(II)-catalyzed bis-isocyanide insertion reactions with sulfonyl azides via nitrene radicals: Chemoselective synthesis of sulfonylamidyl amide and 3-imine indole derivatives
Gu, Zheng-Yang,Li, Jing-Hao,Wang, Shun-Yi,Ji, Shun-Jun
, p. 11173 - 11176 (2017)
A chemoselective Co(ii)-catalyzed effective synthesis of sulfonylamidyl amide and 3-imine indole derivatives by using isocyanides and sulfonyl azides has been developed. This protocol provides a new, environmentally friendly and simple strategy for the efficient synthesis of the sulfonylamidyl amide and 3-imine indole derivatives with a wide range of substrates in the absence of any oxidants and additives.
A Unified Approach for the Synthesis of Isourea and Isothiourea from Isonitrile and N,N-Dibromoarylsulfonamides
Mishra, Debashish,Phukan, Prodeep
, p. 17581 - 17593 (2021/12/13)
A unified approach has been developed for the synthesis of both isourea and isothiourea in a three-component coupling reaction by treating alcohols or thiols respectively with N,N-dibromoarylsulfonamides and isonitrile and in the presence of K2
Facile, catalyst-free cascade synthesis of sulfonyl guanidines: Via carbodiimide coupling with amines
Hazarika, Debojit,Borah, Arun Jyoti,Phukan, Prodeep
supporting information, p. 1418 - 1421 (2019/02/05)
An expeditious catalyst-free cascade coupling of N,N-dibromoarylsulfonamides with isonitriles and amines via carbodiimide intermediates has been developed. The protocol represents an elegant pathway for sulfonyl guanidines at room temperature within a short time with high yields and wide substrate scope. The carbodiimide intermediate could also be isolated in an appreciable yield.
β-diketiminato nickel imides in catalytic nitrene transfer to isocyanides
Wiese, Stefan,Aguila, Mae Joanne B.,Kogut, Elzbieta,Warren, Timothy H.
, p. 2300 - 2308 (2013/06/27)
The β-diketiminato nickel(I) species [Me3NN]Ni(2-picoline) (1) serves as an efficient catalyst for carbodiimide (RN=C=NR′) formation in the reactions of a range of organoazides N3R with isocyanides R′NC. [Me3NN]Ni(CNR)2 (R = tBu, Ar (Ar = 2,6-Me2C6H3)) species provide carbodiimides RN=C=NAr′ upon reaction with Ar′N3 (Ar′ = 3,5-Me2C6H3). Nitrene transfer takes place via the intermediacy of nickel imides. Reaction of [MexNN]Ni(2-picoline) (x = 2 or 3) with Ar′N3 gives the new dinickel imides {[Me xNN]Ni}2(μ-NAr′) (4 (x = 3) and 5 (x = 2)) as deep purple, diamagnetic substances. The X-ray structure of {[Me 2NN]Ni}2(μ-NAr′) (5) features short Ni-N imide distances of 1.747(2) and 1.755(2) A along with a short Ni-Ni distance of 2.7210(3) A. These dinickel imides 4 and 5 react stoichiometrically with tBuNC to provide the corresponding carbodiimides tBuN=C=NAr′ in good yield. Azide transfer takes place upon reaction of 1 with TMS-N3 to give the square planar nickel(II) azide [Me3NN]Ni(N3)(2-picoline) (7). Stoichiometric reaction of dinickel dicarbonyl {[Me3NN]Ni} 2(μ-CO)2 with organoazides such as Ar′N 3 is sluggish, indicating that 1 is not an efficient catalyst for nitrene transfer from organoazides to CO to form isocyanates RN=C=O.
