Abstract

AbstractThe crystal and molecular structures of five pairs of diastereomeric cis‐ and trans‐2‐phosphoryl‐, 2‐thiophosphoryl‐, and 2‐selenophosphoryl‐5‐t‐butyl‐1,3‐dithianes have been determined.For all the examined compounds, all of the basic geometrical parameters, such as bond lengths, bond and torsion angles, and the deformation of a chair conformation of the six‐membered heterocyclic rings, have been established. The differences in corresponding bond lengths and valence angles in diastereomeric cis‐ and trans‐2‐P‐substituted 1,3‐dithianes are discussed.

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