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Spiro-annulation of Barbituric Acid Derivatives and Its Analogues by Ring-Closing Metathesis Reaction.

✍ Scribed by Sambasivarao Kotha; Ashoke Chandra Deb; Ramanatham Vinod Kumar


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

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The annulated and bridged dihydropyrans 6-8 obtained by a domino-Knoevenagel-hetero-Diels-Alder reaction with N,NЈ-dimethylbarbituric acid were reduced with excess DI-BAL-H at -78 °C to give the corresponding 3-desoxy derivat- [a]