反应详情

To a solution of crude (1S,2R)-4′-(4-chlorophenyl)-2′,3′,9′-trimethylspiro[cyclopropane-1,6′-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine]-2-carbaldehyde (298 mg, 0.752 mmol) in t-BuOH (5 mL) was added 2-methylbut-2-ene (1055 mg, 15.04 mmol) and a pH 7 buffer solution (5 mL). Then sodium chlorite was added at rt, and the biphasic reaction was vigorously stirred for 3.5 h. When the starting material was entirely consumed, sat. aq. NH4Cl was added, and the product was extracted with DCM/MeOH (19:1) (repeated 3 times). The organic layers were combined, dried over Na2SO4, filtered and concentrated to dryness. The residue was used in the next step without purification. LRMS (M+H)+: 413 m/z.

1. customthe biphasic reaction
2. customWhen the starting material was entirely consumed
3. additionsat. aq. NH4Cl was added
4. extractionthe product was extracted with DCM/MeOH (19:1) (repeated 3 times)
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated to dryness
8. customThe residue was used in the next step without purification