Multi-step reaction with 7 steps
1: 1.) N,N-dimethylaniline, 2.) Et3N / 1.) CH2Cl2, 0 deg C, 15 min, 2.) CH2Cl2, from 0 deg C to RT, 45 min
2: Rh2(S-MEPY)4 / CH2Cl2 / 18 h / Heating
3: 1.) trimethylaluminum / 1.) CH2Cl2, hexane, RT, 20 min, 2.) CH2Cl2, hexane, 40 deg C, 40 h
4: pyridinium chlorochromate / CH2Cl2 / 48 h / Ambient temperature
5: K2CO3 / methanol / 24 h / Ambient temperature
6: 8N Jones' reagent / acetone / 2 h / 0 - 5 °C
7: 1-hydroxybenzotriazole (HOBT), 1-<3-(dimethylamino)propyl>-3-ethylcarbodiimide hydrochloride (EDC*HCl) / dimethylformamide / 24 h / Ambient temperature
With
jones' reagent; Rh2[(2S)-5-hydroxypyrrolidine-2-COOMe]4; trimethylaluminum; potassium carbonate; benzotriazol-1-ol; N,N-dimethyl-aniline; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; pyridinium chlorochromate;
In
methanol; dichloromethane; N,N-dimethyl-formamide; acetone;
DOI:10.1021/jm00088a005