The Synthesis of Fluorine Containing Polysiloxanes. Part 1. The Synthesis of Fluorine Containing Cyclosiloxanes

Abstract

A new facile preparative method for the synthesis of semifluorinated organocyclosiloxanes is reported. Ring closure of the dichlorosilanes with NaHCO₃ and pyridine gave a mixture of semifluorinated organocyclosiloxanes with cyclotrisiloxane as the main product in yields 95–98% with yield of cyclotrisiloxanes up to 80%.

Keywords:

• Cyclization
• semifluorinated cyclosiloxanes
• semifluorinated dichlorosilanes
• semifluorinated organosilicon compounds