Dichloromethane → HCID 66966216, compound

Participants

Reaction Steps

A solution of (S)-(E)-3-(10-oxo-2,3,4,9,10,10a-hexahydro-1H-3a,8,9-triaza-benzo[f]azulen-6-yl)acrylic acid tert-butyl ester (0.65 g, 1.97 mmol) in CH2Cl2 (7 mL) was treated with TFA (7 mL). After stirring at room temperature for 30 min, the clear tan solution was concentrated in vacuo. The resulting oil was treated with anhydrous dioxane (20 mL of a 4.0 M solution in dioxane, 80 mmol). The resulting mixture was sonicated for 5 min, stirred under N2 for 5 min and diluted with Et2O. The solid was isolated by filtration, suspended in Et2O, concentrated to dryness, and dried under vacuum overnight to give the title compound (0.60 g, 88%) as an off-white solid: MS (ESI) m/e 274 (M+H)+.

Provenance & Evidence