Effect of pressure on the Strecker synthesis of hindered α-aminonitriles from ketones and aromatic amines
作者:Gérard Jenner、Ridha Ben Salem、Jong Chul Kim、Kiyoshi Matsumoto
DOI:10.1016/s0040-4039(02)02598-4
日期:2003.1
effect of highpressure is examined in Strecker reactions involving ketones, amines and trimethylsilyl cyanide. This effect is small when moderately hindered reactants are involved. However, in the case of aniline and N-methylaniline, the sensitivity of the reaction to pressure increases with increasing steric bulk of the alkyl groups of the ketone. The results confirm the merit of pressure activation
Lewis base-catalyzed three-component Strecker reaction on water. An efficient manifold for the direct α-cyanoamination of ketones and aldehydes
作者:Fabio Cruz-Acosta、Alicia Santos-Expósito、Pedro de Armas、Fernando García-Tellado
DOI:10.1039/b914151k
日期:——
The first three-component organocatalyzed Strecker reaction operating on water has been developed. The manifold utilizes ketones (aldehydes) as the starting carbonyl component, aniline as the primary amine, acetyl cyanide as the cyanide source and N,N-dimethylcyclohexylamine as the catalyst.
Tetraflic Acid (1,1,2,2-Tetrafluoroethanesulfonic Acid, HC2F4SO3H) and Gallium Tetraflate as Effective Catalysts in Organic Synthesis
作者:G. K. Surya Prakash、Thomas Mathew、Chiradeep Panja、Aditya Kulkarni、George A. Olah、Mark A. Harmer
DOI:10.1002/adsc.201200111
日期:2012.8.13
Tetraflic acid offers ample acidity for various organic reactions that require high acidity. Its gallium(III) salt is an efficientcatalyst under mild condtions for synthetic transformations such as the ketonic Streckerreaction for the synthesis of fluorinated α-aminonitriles and condensation–cyclzation reactionsusing suitable fluoro ketones and 1,2-disubstituted benzenes for the direct preparation
Efficient synthesis of α-aminonitriles over homopiperazine sulfamic acid functionalized mesoporous silica nanoparticles (MSNs-HPZ-SO3H), as a reusable acid catalyst
作者:Zahra Nasresfahani、Mohamad Z. Kassaee、Esmaiel Eidi
DOI:10.1007/s13738-019-01654-x
日期:2019.9
AbstractGood to excellent yields of α-aminonitriles are achieved through three-component Strecker reaction of aldehydes or ketones with amines and trimethylsilyl cyanides over homopiperazine sulfamic acid functionalized mesoporous silicananoparticles (MSNs-HPZ-SO3H). The advantages of this protocol include: simplicity, short reaction time, high yields, ease of product isolation and reusability of the catalyst
Brønsted acid-catalyzed efficient Strecker reaction of ketones, amines and trimethylsilyl cyanide
作者:Guang-Wu Zhang、Dong-Hua Zheng、Jing Nie、Teng Wang、Jun-An Ma
DOI:10.1039/b924272d
日期:——
A general method for the one-pot, three-component Strecker reaction of ketones was developed using Brønsted acids as organocatalysts. A series of α-aminonitriles were obtained in good to excellent yields (79–99%). A preliminary extension to a catalytic enantioselective three-component Strecker reaction of ketones (up to 40% ee) is also described.