Nickel(II) N‐Heterocyclic Carbene Complexes: Versatile Catalysts for C–C, C–S and C–N Coupling Reactions
作者:Lourdes Benítez Junquera、Francys E. Fernández、M. Carmen Puerta、Pedro Valerga
DOI:10.1002/ejic.201700057
日期:2017.5.18
A variety of Ni(II) complexes with a wide range of electronic and steric properties, bearing picolyl-imidazolidene ligands (a-g) and Cp (2a-f) or Cp* (3a,c,g) groups, have been synthesised and characterised using NMR and single crystal X-ray crystallography. The complexes have been used as precatalysts for a wide range of catalytic transformations most likely involving a Ni0/NiII catalytic cycle. In
Easily available nickel complexes as catalysts for the intermolecular hydroamination of alkenes and alkynes
作者:Adán Reyes-Sánchez、Ilnett García-Ventura、Juventino J. García
DOI:10.1039/c3dt52648h
日期:——
A series of nickel complexes of the type [(P–P)NiX2] ((P–P) = bisphospines or bisphosphites, X = chloride, triflate) were used as catalysts for the hydroamination of both activated and unactivated alkenes and alkynes with pyrrolidine. In general, the use of activated unsaturations, such as acrylonitrile, required mild reaction conditions (e.g. 100 °C and 4 h) in comparison with other non-activated
Aza-Michael reactions in water using functionalized ionic liquids as the recyclable catalysts
作者:X. Liu、M. Lu、G. Gu、T. Lu
DOI:10.1007/bf03245908
日期:2011.9
Some recyclable SO3H-functionalized ionicliquids have been used as catalysts in water for the aza-Michael reactions of amines with α,β-unsaturated compounds to produce β-amino compounds. High yields of the products, short reaction times, mild reaction conditions, simple experimental procedure, reusable catalysts and no obvious loss of the catalytic activity make this protocol a contribution to organic
Novel sulfonyldiazomethanes, photoacid generators, resist compositions, and patterning process
申请人:——
公开号:US20040167322A1
公开(公告)日:2004-08-26
A chemical amplification type resist composition comprising a specific benzenesulfonyldiazomethane containing a long-chain alkoxyl group at the 2-position on benzene ring has many advantages including improved resolution, improved focus latitude, minimized line width variation or shape degradation even on long-term PED, minimized debris left after coating, development and peeling, and improved pattern profile after development and is thus suited for microfabrication.
Benzothiazole derivatives with activity as adenosine receptor ligands
申请人:——
公开号:US20020045615A1
公开(公告)日:2002-04-18
The present invention relates to substituted benzothiazole derivitives and to their pharmaceutically acceptable salts useful for the treatment of diseases related to the adenosine receptor.