Tetrahedron letters

Examination of the ring-chain isomerism of 2-hydroxy-chromanones with 1H NMR spectroscopy

J Borbély, V Szabó

文献索引：Szabo, Vince; Borbely, Janos; Theisz, Edit; Janzso, Geza Tetrahedron Letters, 1982 , vol. 23, # 50 p. 5347 - 5350

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被引用次数: 1

摘要

In the cyclic derivatives (1) the hydroxyl group is of pseudo-axial orientation (1: α-anomer) and no equatorial form (1: β-anomer) has been detected. The ring-opened compound exits in keto-enol equilibrium (2 α 3) dependent of the R-substituent.