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  • Catalytic Hydrogenation of 3-Amino-6-(trifluoromethyl)-5,6-dihydropyridin-2(1H)-ones and Its Use in the Synthesis of Trifluoromethyl-Containing Mimetics of Ornithine and Thalidomide

Tandem hetero-Diels–Alder-hemiacetal reaction in the synthesis of new chromeno[4′,3′:4,5]thiopyrano[2,3-d]thiazoles

Heterocycl. Commun. 2017, 23 (1), 1-5

DOI: 10.1515/hc-2016-0176

Lozynskyi A.; Matiychuk V.; Karpenko O.; Gzella A.; Lesyk R.

Novel rel-(5aR,6R,11bS)-6-hydroxy-3,5a,6,11b-tetrahydro-2H,5H-chromeno[4′,3′:4,5]thiopyrano[2,3-d][1,3]thiazole-2-ones were synthesized via tandem hetero-Diels-Alder-hemiacetal reaction of 5-(2-hydroxybenzylidene)-4-thioxo-2-thiazolidinones and α,β-unsaturated aldehydes. The stereochemistry of cycloadditions was confirmed by NMR spectra and a single crystal X-ray diffraction analysis.

Tandem hetero-Diels–Alder-hemiacetal reaction in the synthesis of new chromeno[4′,3′:4,5]thiopyrano[2,3-d]thiazoles

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