Multi-step reaction with 6 steps
1.1: sodium hydride / N,N-dimethyl-acetamide
1.2: 83 percent / N,N-dimethyl-acetamide / 2.5 h / 90 °C
2.1: n-butyl lithium / 1,2-dimethoxy-ethane
2.2: 81 percent / 1,2-dimethoxy-ethane / 40 h / Heating
3.1: sodium hydride / tetrahydrofuran / 15 h
4.1: 6.45 g / potassium ferricyanide; potassium carbonate; K2OsO2(OH)4 / (DHQ)2PHAL; mathanesulfonamide / 2-methyl-propan-2-ol; H2O / 15 h
5.1: triethylamine; 4-nitrobenzenesulfonyl chloride / CH2Cl2 / 15 h / 0 °C
5.2: sodium azide / acetone; H2O / 15 h / 60 °C
6.1: 1.40 g / 2,6-lutidine / CH2Cl2 / 15 h
With
2,6-dimethylpyridine; n-butyllithium; potassium dioxotetrahydroxoosmate(VI); sodium hydride; potassium carbonate; triethylamine; 4-Nitrobenzenesulfonyl chloride; potassium hexacyanoferrate(III);
Hydroquinone 1,4-phthalazinediyl diether; methanesulfonamide;
In
tetrahydrofuran; 1,2-dimethoxyethane; dichloromethane; N,N-dimethyl acetamide; water; tert-butyl alcohol;
DOI:10.1021/jo050896w