Molybdenum- and Tungsten-Based Coordination Polymers as Catalysts for an Efficient and Rapid Synthesis of Hexahydro-5-oxoquinoline-3-carboxylates and 1,4-Dihydropyridine-3,5-dicarboxylates

Hexahydro‐5‐oxoquinoline‐3‐carboxylates and 1,4‐dihydropyridine‐3,5‐dicarboxylates were synthesized efficiently and rapidly (2 min) in the presence of molybdenum‐ and tungsten‐based coordination polymers [M(Bu3Sn)2O4)]n (M=Mo or W) as catalysts (Schemes 1 and 2; Tables 2 and 3). The products were fo...

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Bibliographic Details
Published in:Helvetica chimica acta 2011-05, Vol.94 (5), p.885-891
Main Authors: Das, Biswanath, Srilatha, Malampati, Veeranjaneyulu, Boyapati, Shashi Kanth, Boddu
Format: Article
Language:English
Subjects:
4-dihydro
5-dicarboxylates
Catalysis
hexahydro-5-oxo
Molybdenum complexes
Multicomponent reactions
Pyridine-3
Pyridine‐3,5‐dicarboxylates, 1,4‐dihydro
Quinoline-3-carboxylates
Quinoline‐3‐carboxylates, hexahydro‐5‐oxo
Tungsten complexes
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Summary:Hexahydro‐5‐oxoquinoline‐3‐carboxylates and 1,4‐dihydropyridine‐3,5‐dicarboxylates were synthesized efficiently and rapidly (2 min) in the presence of molybdenum‐ and tungsten‐based coordination polymers [M(Bu3Sn)2O4)]n (M=Mo or W) as catalysts (Schemes 1 and 2; Tables 2 and 3). The products were formed at room temperature in excellent yields (90–98%). The catalysts worked under heterogeneous conditions and were recyclable. The earlier reports for the application of these polymers to conduct organic synthesis are limited. The present method explores a new and useful application of these catalysts.
ISSN:0018-019X
1522-2675
DOI:10.1002/hlca.201000354