Thionyl Chloride → (S)-2,7-dihydro-7-phenyl-2-(phenylmethyl)-5-chloro-3H-imidazo[1,2-c]pyrazolo-[4,3-e]pyrimidine

Participants

Reaction Steps

1.037 g of the above product (S)-β-[(1-phenyl-6-chloro-1H-pyrazolo[3,4-d]pyrimidin-4-yl)amino]benzenepropanol was then dissolved in 25 ml CHCl3. Next, 1.38 ml thionyl chloride was added and the reaction was allowed to stir overnight. It was then placed in a freezer at -28° C. After 5 hours the precipitate was filtered and collected washing with cold CHCl3. The white solid was dried in a vacuum oven at 70° C. for 24 hours to yield 550 mg of (S)-2,7-dihydro-7-phenyl-2-(phenylmethyl)-5-chloro-3H-imidazo[1,2-c]pyrazolo[4,3-e]pyrimidine (56%).

Provenance & Evidence