论文信息 - Relationship between Dominant Conformation and Diastereoselectivity of O‐Acetal Formation of Saturated 2H‐3,1‐Benzothiazine‐2‐thiones

Relationship between Dominant Conformation and Diastereoselectivity of O‐Acetal Formation of Saturated 2H‐3,1‐Benzothiazine‐2‐thiones

Stereospecific formation of O-acetals 4, 5 of the isomeric octahydro-8a-hydroxy-4-phenyl-2H-3,1-benzothiazine-2-thiones 1–3 is reported. The stereoselectivity of the reaction is determined by the dominant conformations. During all reactions the phenyl substituent retains its equatorial position.

G. Batta | P. Perjési

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