trans-Crotonyl chloride → N-[4-(3-Bromoanilino)quinazolin-7-yl]but-2-enamide

Participants

Reaction Steps

To an ice cold solution of 0.158 g of 7-amino-4(3-bromoanilino)-quinazoline (J Med Chem, 1985:3482) in 5 mL of tetrahydrofuran was added dropwise a solution of 0.105 g of crotonic acid chloride in 5 mL of tetrahydrofuran. When the addition was complete, the ice bath was removed and the reaction stirred at room temperature for 15 hours. The reaction was filtered to remove the yellow solid which was washed with tetrahydrofuran and recrystallized from 20 mL of boiling methanol to afford 0.060 g of the desired product, mp >250° C.

Provenance & Evidence