Unexpected Oxidative Ring Opening of Electron-Rich 3-Aminobenzofurans into α-Ketoimines Derivatives

The reaction mixture was concentrated under reduced pressure and the crude product was purified by silica gel chromatography with ethyl acetate in pentane (1:9) to afford 3.38

The reaction mixture was concentrated in vacuo and purified by silica gel column chromatography to afford the desired product.. The reaction was concentrated in vacuo and

The crude compound was purified by column chromatography on silica gel using a mixture of petroleum ether: ethyl acetate 7: 3 as eluent, yielding 2.98 g (55 %) of desired indazole as

The organic phase was concentrated and the crude product was purified by column chromatography on silica gel, using petroleum ether/ethyl acetate as eluent. Imidazopyridine 7a

In the first period, the traditional lender does not have access to historical lending data and only makes use of soft information to screen borrowers.. The second period lending

16 Whole-rock elemental geochemistry and Nd isotope composition of siliciclastic rocks from 17 the basal part of the unmetamorphosed middle Paleoproterozoic

After concentration the resulting crude product was purified by column chromatography (cyclohexane: ethyl acetate = 4:1) getting compound 6 (600 mg, 85%) as

The resulting residue was purified by silica gel chromatography (Cyclohexane/EtOAc: 1:1) to afford the title compound in pure form. The solution was stirred at room temperature for