2H-Isoindole-2-acetyl chloride, 1,3-dihydro-1,3-dioxo- → HCID 67767530, compound

Participants

Reaction Steps

To a solution of (3aR*,10aS*)-9-[3-(benzyloxycarbonylamino)benzyl]-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one (1.9 g, 4.3 mmol) in 1,2-dichloroethane (50 mL) was added phthalimidoacetyl chloride (1.1 g, 4.7 mmol) at room temperature and the mixture was refluxed for 17 hours. After cooling, saturated aqueous NaHCO3 solution (30 mL) was added and the mixture was diluted with water and extracted with 2 portions of chloroform. The pooled organic layer was washed with saturated aqueous NaCl solution, dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was crystallized from diethyl ether to provide 1.5 g (yield 55%) of the title compound. m.p. 224°-225° C.

Provenance & Evidence