Montmorillonite KSF clay-promoted synthesis of enantiomerically pure 5-substituted pyrazoles from 2,3-dihydro-4H-pyran-4-ones |
| |
| Authors: | JS Yadav BVSubba Reddy M Srinivas A Prabhakar B Jagadeesh |
| |
| Institution: | Division of Organic Chemistry, Indian Institute of Chemical Technology, Hyderabad 500007, India |
| |
| Abstract: | 2,3-Dihydro-4H-pyran-4-ones derived from d-glucal undergo rapid condensation with aryl hydrazines in the presence of montmorillonite KSF clay under mild conditions to afford a novel class of chiral 5-substituted pyrazoles in good yields with high selectivity. The stereochemical assignments of the products were achieved by NMR studies. |
| |
| Keywords: | Glycals Dihydropyranones Hydrazines Pyrazoles |
| 本文献已被 ScienceDirect 等数据库收录！ |
