Isopropylamine → HCID 68881870, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (E)-3-(3-bromophenyl)-2-[4-(methylsulfonyl)phenyl]-2-propenoic acid from Step 1 (24.9 g, 65 mmol) in toluene (250 mL) was added thionyl chloride (14.3 mL, 196 mmol) and triethylamine (34 mL, 245 mmol). After stirring at 21° C. for 0.5 h., isopropyl amine (28 mL, 327 mmol) was added. After a further 2 h at r.t., the mixture was cooled to 0° C. and was neutralised with saturated NH4Cl solution, then extracted with EtOAc. The organic extracts were washed (H2O, brine), dried (MgSO4), filtered and concentrated. Purification by flash chromatography (Hex:EtOAc, 1:1 to pure EtOAc) yielded the (E)-N-isopropyl-3-(3-bromophenyl)-2-[4-(methylsulfonyl)phenyl]-2-propenamide compound.

Provenance & Evidence