Oxygen → HCID 21188885, compound

Participants

Reaction Conditions

Reaction Steps

18.7 cm3 (50 mmol) of a 20% strength solution of butyllithium in toluene were added at room temperature to a solution of 10 g (50 mmol) of 10 in 100 cm3 of H2)- and O2-free toluene and 5 ml of H2O- and O2-free THF, and the mixture was heated at 80° C. for 2 hours. The yellow suspension was subsequently cooled to 0° C. and 3.2 g (25 mmol) of dimethyldichlorosilane were added. The reaction mixture was heated at 80° C. for a further 1 hour and subsequently washed with 50 cm3 of H2O. The solvent was removed in vacuo, and the residue was recrystallized from heptane at −20° C. giving 6.7 g (62%) of 11 as colorless crystals (m.p. 109-110° C.).

Provenance & Evidence