Trimethyl(pentafluoroethyl)stannane

Preparation

Trimethyl(trifluoromethyl)stannane is prepared in 81% yield by reaction of Hexamethyldistannane with Trifluoroiodomethane in a sealed tube at 80 °C for 20 h (eq 1). Without compromising the yield, this reaction may also be performed at rt by irradiating for 6 h with a 250 W UV lamp. Reaction of Me3SnX (X = OCOCF3 or Br) with an alkylating agent, such as (CF3)2Cd, may also be used to synthesize trimethyl(trifluoromethyl)tin in high yields.

storage

Trimethyl(trifluoromethyl)stannane is prolonged contact or heating with water causes decomposition to produce fluoroform. Temperatures above 150 °C cause decomposition to trimethyltin fluoride.