Synthesis of siloxanes : XXII. Synthesis and crystal structure of 2-t-butoxy-2,4,6-trimethyl-4,6-diphenyl-(2α,4α 6α)-cyclotrisiloxane

The structure of 2-t-butoxy-2,4,6-trimethyl-4,6-diphenyl-(2α,4α,6α)-cyclotrisiloxane has been determined by an X-ray crystallographic study. The structure revealed confirms the validity of the basis of our ²⁹Si and ¹H NMR assignments previously made to configurational isomers of several model compounds, which are suitable for studying the stereochemistry of substitutions at silicon atoms in siloxanes