Hydrochloric Acid → 3-[5-(2,4-dimethyl-1,3-thiazol-5-yl)-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl]propanal

Participants

Reaction Conditions

Reaction Steps

1-[3,3-bis(methyloxy)propyl]-5-(2,4-dimethyl-1,3-thiazol-5-yl)-2,4(1H,3H)-pyrimidinedione (Prep35, 321 mg, 0.987 mmol) was dissolved in Tetrahydrofuran (THF) (20 mL), 1N Hydrochloric acid aqueous solution (5.92 mL, 5.92 mmol) was added and the mixture was stirred at 45° C. for 1.5 hours. Volatiles were evaporated under vacuum (cold bath) then triethylamine (0.825 mL, 5.92 mmol) and THF (6 mL) were added. Solvents were eliminated until dryness and the white foam thus obtained was used in the next step without further purification.

Provenance & Evidence