(Bromodimethyl)sulfonium Bromide Catalyzed One-Pot Synthesis of α-Aminonitriles
作者:Biswanath Das、R. Ramu、B. Ravikanth、K. Reddy
DOI:10.1055/s-2006-926421
日期:2006.5
A novel, simple and efficient one-pot synthesis of α-aminonitriles has been achieved by a three-component condensation of carbonyl compounds, amines and trimethylsilyl cyanide in the presence of (bromodimethyl)sulfoniumbromide as a catalyst at room temperature. The products were obtained in high yields and in short reaction times.
A distinct approach for the synthesis of α-aminonitriles has been discovered by three-component reaction of nitroarenes, aldehydes, and TMSCN using indium in dilute aqueous HCl at room temperature. The products were formed in high yields (86–96%) within a short period of time (5–20 min). This one-pot conversion consists of the following steps: (i) reduction of nitro compounds to amines, (ii) formation
Cerium(III) Chloride: A Highly Efficient Reagent for the Synthesis of α‐Aminonitriles
作者:M. A. Pasha、H. M. Nanjundaswamy、V. P. Jayashankara
DOI:10.1080/00397910701578180
日期:2007.11
report a highly efficient, one‐pot, three‐component condensation of carbonyl compounds, amines, and TMSCN in MeCN; the reaction is significantly promoted by the catalytic amount of cerium(III) chloride at ambient temperature in excellent yields without any adverse effect on the other substituents. The method afforded an elegant alternative to the synthesis of α‐aminonitriles. The reactions are fast and
Tin exchanged zeolite as catalyst for direct synthesis of α-amino nitriles under solvent-free conditions
作者:Arpan K. Shah、Noor-ul H. Khan、Govind Sethia、S. Saravanan、Rukhsana I. Kureshy、Sayed H.R. Abdi、Hari C. Bajaj
DOI:10.1016/j.apcata.2012.01.001
日期:2012.3
Sn exchanged HBeta zeolite was prepared and characterized by PXRD, surface area, TPD and TEM analysis. The Sn exchanged zeolite was found to be highly efficient catalyst for the direct synthesis of alpha-amino nitrite from various ketones and aldehydes with amine and trimethyl silylcyanide (TMSCN) under solvent-free condition. Excellent yield of alpha-amino nitrile (up to 96%) was achieved within 10-120 min at room temperature. The Sn exchanged HBeta zeolite was recovered and reused several times without the loss of its catalytic performance. (C) 2012 Elsevier B.V. All rights reserved.
Pamar, M. Geeta; Govender; Pillay, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2015, vol. 54B, # 1, p. 110 - 116
作者:Pamar, M. Geeta、Govender、Pillay、Abrahamse、Nanjundaswamy