One-Pot Two-Step Solvent-Free Rapid and Clean Synthesis of 2-(Substituted Amino)pyrimidines by Microwave Irradiation
作者:Shyamaprosad Goswami、Anita Hazra、Subrata Jana
DOI:10.1246/bcsj.82.1175
日期:2009.9.15
A series of diversely 2-(substitutedamino)pyrimidines (along with ring substitution) has been synthesized under solvent- and catalyst-free microwave conditions from substituted guanidines and β-di...
在无溶剂和无催化剂微波条件下,由取代胍和 β-二...
Synthesis of novel chiral guanidine catalyst and its application in the asymmetric Pictet-Spengler reaction
作者:Saeed Ahmad、Lakshmi Shukla、Joanna Szawkało、Piotr Roszkowski、Jan K. Maurin、Zbigniew Czarnocki
DOI:10.1016/j.catcom.2016.10.008
日期:2017.1
A new chiral guanidine catalyst has been synthesized by the reaction of (R)-1-(1-phenylethyl)guanidine and 2,3-diphenylcycloprop-2-enone. The catalyst was evaluated for the Pictet-Spenglerreaction in which tetrahydro-β-carbolines were obtained in good yields with up to 64% ee.