Efficient Three-Component Strecker Reaction of Acetals and Aromatic Amines Catalysed by Hafnium Tetrachloride at Room Temperature
作者:Xue-Lin Zhang、Qin-Pei Wu、Qing-Shan Zhang
DOI:10.3184/174751913x13814077309487
日期:2013.11
A straightforward, mild, efficient, one-pot method has been found for the synthesis of α-aminonitriles via three-component Strecker reaction using acetals or cyclic acetals, curious aromatic amines and trimethylsilyl cyanide (TMSCN) catalysed by hafnium tetrachloride at room temperature. It is with good to excellent yields under mild conditions. This developed approach has been successfully applied
Strong Lewis acid air-stable cationic titanocene perfluoroalkyl(aryl)sulfonate complexes as highly efficient and recyclable catalysts for C–C bond forming reactions
Aqueous formic acid: an efficient, inexpensive and environmentally friendly organocatalyst for three-component Strecker synthesis of α-aminonitriles and imines with excellent yields
作者:Hossein Ghafuri、Mahdi Roshani
DOI:10.1039/c4ra11957f
日期:——
Aqueous formic acid (37%) was effectively used as catalyst in Strecker reaction to afford α-aminonitriles and imines in high yields.
A concise, straightforward and efficient method has been developed for the synthesis of α-aminonitriles by an one-pot three-component condensation of aldehydes or ketones, amines and trimethylsilyl cyanide catalyzed by MgI2 etherate under solvent-free conditions. This protocol has some advantages such as mild reaction condition, simple work-up, short reaction time and high product yields.
A Novel Uncatalyzed Insertion Reaction of In Situ Formed Trichlorosilyl Cyanide with Imines: A Facile Silicon Mediated Synthesis of α-Aminonitriles
作者:Abdel-Aziz S. El-Ahl
DOI:10.1081/scc-120016363
日期:2003.1.4
Abstract The tetrachlorosilane-potassium cyanide reagent combination, (trichloro-silyl cyanide-in situ) is a new, safe and versatile hydrogen cyanide substitute. The reaction of this reagent with saturated aldimines 1a–j and benzophenone oxime 3, in absences of any catalyst, affords the corresponding α-aminonitriles 2a–j and 4, respectively, in excellent yield. Under the same condition the bis-imine