Synthesis, Structure, and Reactivities of 2,4,6-TRIS[Bis-(Trimethylsilyl)Methyl]Thiobenzaldehydes: First Isolation of Rotational Isomers of Thiobenzaldehydes

Abstract

Abstract The first example of rotational isomers of thiobenzaldehydes TbtCH[dbnd]S (1a and 1b; Tbt[dbnd]2,4,6-tris[bis(trimethylsilyl)methyl]phenyl) were synthesized and isolated as stable crystalline compounds by the desulfurization of the corresponding overcrowded cyclic polysulfides TbtCHSn (n=5 or 8). Molecular structures of 1a and 1b in the solid state were determined by X-ray crystallographic analysis. Kinetic studies on the thermal interconversion between 1a and 1b are also described.