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ChemInform Abstract: Studies on Novel Synthetic Methodologies. Part 224. Efficient Synthesis of Tetrahydropyrimidines and Pyrrolidines by a Multicomponent Reaction of Dialkyl Acetylenedicarboxylates (= Dialkyl But-2-ynedioates), Amines, and Formaldehyde in the Presence of Iodine as a Catalyst.

✍ Scribed by Biswanath Das; Boddu Shashi Kanth; Digambar Balaji Shinde; Vinod T. Kamble

Publisher: John Wiley and Sons
Year: 2012
Weight: 31 KB
Volume: 43
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201213183

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Efficient Synthesis of Tetrahydropyrimid

Efficient Synthesis of Tetrahydropyrimidines and Pyrrolidines by a Multicomponent Reaction of Dialkyl Acetylenedicarboxylates (=Dialkyl But-2-ynedioates), Amines, and Formaldehyde in the Presence of Iodine as a Catalyst

✍ Biswanath Das; Boddu Shashi Kanth; Digambar Balaji Shinde; Vinod T. Kamble 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 German ⚖ 129 KB 👁 1 views

## Abstract Iodine was explored as an efficient catalyst for the synthesis of tetrahydropyrimidines **4** and pyrrolidines **5** by a multicomponent reaction of dialkyl acetylenedicarboxylates (=dialkyl but‐2‐ynedioates) **1**, amines **2**, and HCHO **3** at room temperature (__Scheme__). When the

ChemInform Abstract: Studies on Novel Sy

ChemInform Abstract: Studies on Novel Synthetic Methodologies. Part 230. A Simple and Efficient Metal-Free Synthesis of Tetrasubstituted Pyrroles by Iodine-Catalyzed Four-Component Coupling Reaction of Aldehydes, Amides, Dialkyl Acetylenedicarboxylates, and Nitromethane.

✍ Biswanath Das; Nisith Bhunia; Maram Lingaiah 📂 Article 📅 2012 🏛 John Wiley and Sons ⚖ 30 KB 👁 2 views