HCID 22497279, compound → HCID 131724841, compound

Participants

Reaction Steps

A 500 ml three neck round bottom flask equipped with a magnetic stirrer, condenser, additional funnel, and pot thermometer was charged with 165.0 g (0.75 mol) of allyloxyethoxy sulfolane under appositive pressure of nitrogen. After heating to 80° C.-90° C., 61.2 g (0.28 mol) of bis(trimethylsiloxy)methylsilane was added, followed by 1 ml of Pt(0)-divinyltetramethyldisiloxane solution in xylene (2 wt % Pt). The pot temperature rose from 86° C. to approximately 102° C. The rest of 122.4 g (0.55 mol) of bis(trimethylsiloxy)methylsilane was added while maintaining a pot temperature of between 86° C.-106° C. The mixture was then maintained at a temperature between 86° C.-96° C. for 16 h and was distilled. 167.0 g (50.3%) pure bis(trimethylsiloxy)methylsilylpropoxyethoxy sulfolane was obtained. The pure product had a boiling point of 194° C.-200° C. at 0.4 mm Hg and a density of 1.412 at 25° C.

Provenance & Evidence