Methanol → 6-Bromothieno[2,3-d]pyrimidine

Participants

Reaction Steps

A mixture of 2,4-bis(pivaloylamino)-5-bromomethyl-6-bromothieno[2,3-d]pyrimidine prepared in Step 2 above (200 mg, 0.4 mmol), diphenylamine (1.3 g, 0.77 mmol) and NaH (50 mg, 2.1 mmol) in dry THF (10 mL) is stirred at room temperature for 2 days, the excess NaH is decomposed with MeOH (1 mL), the solvent is evaporated, and the residue is chromatographed on silica gel to obtain 2,4-bis(pivaloylamino)-5-N,N-diphenylaminomethyl)-6-bromothieno[2,3-d]pyrimidine.

Provenance & Evidence