Hydride transfer reactions of 5-(2-alkohybenzylidene) barbituric acids: Synthesis of 2,4,6-trioxoperhydropyrimidine-5-spiro-3′-chromanes
Tetrahedron, ISSN: 0040-4020, Vol: 73, Issue: 5, Page: 542-549
2017
- 12Citations
- 8Captures
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Article Description
The thermal cyclization of 5-(2-phenoxymethylphenyl-methylene)barbituric acid and its derivatives affords 2,4,6-trioxoperhydropyrimidine-5-spiro-3′-chromanes. The reactions require no catalysts and proceed at temperatures from 118 to 240 °C depending on the substrate activity. These cyclization reactions are analogous to T-reactions of tertiary amines involving the hydride transfer.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0040402016313321; http://dx.doi.org/10.1016/j.tet.2016.12.045; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85008686883&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0040402016313321; https://dx.doi.org/10.1016/j.tet.2016.12.045
Elsevier BV
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