A catalytic intramolecular nitrene insertion into a copper(i)-N-heterocyclic carbene bond yielding fused nitrogen heterocycles.
Sign Up to like & getrecommendations! Published in 2017 at "Chemical communications"
DOI: 10.1039/c6cc09160a
Abstract: N-(2-Azidophenyl)azolium salts were easily prepared and reacted with copper(i) under conditions allowing the formation of NHC complexes. Under these conditions, the formation of benzimidazo-fused heterocycles occurred under catalytic, efficient and very mild conditions. This reaction… read more here.
Keywords: insertion copper; copper heterocyclic; copper; catalytic intramolecular ... See more keywords
Migratory insertion of copper-allenylidene from propargyl ester.
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DOI: 10.1039/d2cc00681b
Abstract: The highly efficient copper-catalyzed homo-dimerization and cross-coupling of propargyl esters have been developed. Various 1-en-3,5-diynes, [5]cumulenes and 1,3-diynes were successfully furnished via the copper-allenylidene intermediates with moderate to excellent yields. Migratory insertion is proposed as… read more here.
Keywords: migratory insertion; copper; copper allenylidene; insertion copper ... See more keywords
In situ insertion of copper to form heteroanionic D3h-symmetric [Cu3Mo8O32]10- for a templated Ag55 nanocluster.
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DOI: 10.1039/d2nr00078d
Abstract: A polyoxometalate-templated thiolate-protected silver nanocluster, [Cu3(Mo4O16)2@Ag55(CyhS)43(CH3O)(COOCF3)]ยท3H2O, has been isolated under solvothermal conditions. In situ insertion of three Cu2+ ions into two polymolybdate anions generated a new, sandwich-type D3h-symmetric [Cu3(Mo4O16)2]10- polyoxoanion template encapsulated into an Ag55(CyhS)43… read more here.
Keywords: copper form; d3h symmetric; situ insertion; insertion copper ... See more keywords