Hydrazine hydrate (1:1) → HCID 22609525, compound

Participants

Reaction Steps

A solution of 1.3 ml (26 mmol) of hydrazine hydrate in methanol (2 ml) was added to a suspension of 430 mg (0.58 mmol) of N-[1,4-bis[5-(3,4,5-trimethoxyphenyl)penta-(2E,4E)-dienoyl]-2-piperazinylmethyl]phthalimide synthesized by the process described in Example 48 in methanol (8 ml), and the mixture was stirred for 17 hours at room temperature. The reaction mixture was concentrated under reduced pressure, and the resultant residue was extracted with chloroform. An organic layer was washed with a saturated aqueous solution of sodium hydrogencarbonate and water, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resultant crude oil was purified by column chromatography on silica gel to obtain 232 mg (yield: 65%) of 2-aminomethyl-1,4-bis[5-(3,4,5-trimethoxyphenyl)penta-(2E,4E)-dienoyl]piperazine as a pale yellow amorphous powder.

Provenance & Evidence