Tributyltin Chloride → 7-(1-Methyl-1-triethylsilanyloxyethyl)-3-tributylstannanylimidazo[1,2-alpha]pyrimidine

Participants

Reaction Conditions

Reaction Steps

To a cooled (−78° C.) solution of 3-bromo-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-α]pyrimidine (440 mg, 1.20 mmol) in tetrahydrofuran (4 ml) was added isopropylmagnesium chloride (0.63 ml of a 2M solution in tetrahydrofuran, 1.26 mmol). After stirring at −78° C. for 5 min tributyltin chloride (0.36 ml, 1.32 mmol) was added, the reaction stirred for 10 min at −78° C., then allowed to warm to ambient temperature, to give a solution of 7-(1-methyl-1-triethylsilanyloxyethyl)-3-tributylstannanylimidazo[1,2-α]pyrimidine: m/z (ES+) 581 (M++H).

Provenance & Evidence