Tetrahydrofuran → N2-(2-chlorophenyl)-N8-(3-(diethylamino)propyl)-N2-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2,8-dicarboxamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A suspension of 8-bromo-N-(2-chlorophenyl)-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamide 150 (100 mg, 0.22 mmol), Mo(CO)6 (58 mg), Hermann's palladacycle (trans-Di(mu-acetato)bis[o-(di-o-tolylphosphino)benzyl]dipalladium (II), 31 mg), and N,N-diethyl-1,3-propanediamine (58 mg) in THF (2.0 mL) in a 10 mL microwave vial was treated with DBU (0.02 mL, 0.5 equiv) and immediately sealed. The whole was heated in a microwave at 150° C. for 25 min, cooled to room temperature and diluted with ethylacetate. The crude suspension was filtered through celite and the eluent concentrated to give a residue that was purified by flash column chromatography (1-10% methanol in dichloromethane) to give 103 as a colorless solid. MS: (ESI+)=526.2. 1H NMR (DMSO-d6) δ 8.53 (m, 1H), 7.66 (m, 2H), 7.55-7.44 (m, 4H), 6.55 (m, 1H), 4.20 (m, 2H), ca. 3.2 (m, 2H, obstructed by water), 3.24 (s, 3H, obstructed by water), 2.97 (m, 2H), 2.67-2.56 (m, 6H), 1.69 (m, 2H), 0.99 (m, 6H)

Herkunft & Nachweise