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An Efficient ZrCl4-Catalyzed One-Pot Solvent-Free Protocol for the Synthesis of 4-Substituted Coumarins.

✍ Scribed by G. V. M. Sharma; J. Janardhan Reddy; P. Sree Lakshmi; P. Radha Krishna


Publisher
John Wiley and Sons
Year
2005
Weight
23 KB
Volume
36
Category
Article
ISSN
0931-7597

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L-Proline Catalyzed Solvent-Free Knoeven
✍ Nandkishor. N. KARADE; Sumit V. GAMPAWAR; Sandeep. V. SHINDE; Wamanrao. N. JADHA πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 70 KB

## Abstract __L__‐Proline was utilized as an efficient organo‐catalyst for the environmentally benign synthesis of 3‐substituted coumarins by the Knoevenagel condensation of substituted 2‐hydroxybenzaldehydes with reactive methylene compounds under solvent free conditions.