Tin exchanged zeolite as catalyst for direct synthesis of α-amino nitriles under solvent-free conditions
摘要:
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.
A novel approach for the synthesis of α-aminonitriles using Mitsunobu’s reagent under solvent-free conditions
作者:Devdutt Chaturvedi、Amit K. Chaturvedi、Nisha Mishra、Virendra Mishra
DOI:10.1016/j.tetlet.2012.07.117
日期:2012.10
A highly efficient, one-pot, three-component, solvent-free protocol for the synthesis of alpha-aminonitriles starting from their corresponding carbonyl compounds, amines, using Mitsunobu's reagent has been developed. Diversity of alpha-aminonitriles has been synthesized in good to excellent yields (80-99%) using various kinds of aldehydes/ketones and a variety of amines. (C) 2012 Elsevier Ltd. All rights reserved,