Iron catalyzed oxidative cyanation of tertiary amines
作者:Wei Han、Armin R. Ofial
DOI:10.1039/b910548d
日期:——
Iron(ii) and iron(iii) salts catalyze the oxidative alpha-cyanation of tertiaryamines by trimethylsilyl cyanide in the presence of tert-butylhydroperoxide under acid-free conditions at room temperature.
Highly efficient and recyclable magnetic nanoparticles-supported gold(III)-bipy catalyst for oxidative α-cyanation of tertiary amines
作者:Weisen Yang、Li Wei、Feiyan Yi、Mingzhong Cai
DOI:10.1016/j.tet.2016.05.037
日期:2016.7
tertiary amines with trimethylsilyl cyanide was achieved by using a magnetic nanoparticles-supported gold(III)-bipy complex as catalyst to afford the corresponding α-aminonitriles in good to excellent yields in the presence of tert-butyl hydroperoxide under acid-free conditions. The new heterogeneous goldcatalyst can easily be separated from the reaction mixture by using an external magnet and can be recycled
Heterogeneously Catalyzed Oxidative Cyanation of Tertiary Amines with Sodium Cyanide/Hydrogen Peroxide using Polymer-Supported Iron(II) Phthalocyanines as Catalyst
作者:Sweety Singhal、Suman L. Jain、Bir Sain
DOI:10.1002/adsc.201000007
日期:——
The first report on heterogeneously catalyzed oxidative cyanation of various tertiaryamines to the corresponding α‐amino nitriles with high yields and selectivity by using hydrogen peroxide oxidant in presence of sodium cyanide and Fe(II) phthalocyanine supported on a polymer as catalyst is described. The present method has the added benefits of facile recovery of the catalyst from the reaction mixture
An environmentally benign and metal-free cyanation method of tertiary amines oxidated by hypervalentiodine(III) intermediate generated in situ from PIFA (or DIB) and TMSCN has been developed. A variety of substituent groups on amines are tolerated to the oxidation of α-C–H bond to form C–C bond in the absence of metal catalysts with yields of up to 74%.