Multi-step reaction with 9 steps
1.1: NaH / dimethylformamide; tetrahydrofuran / 0.5 h / 20 °C
1.2: tetrahydrofuran; dimethylformamide / 1 h / 20 °C
2.1: 9.10 g / CSA / methanol; CHCl3 / 20 °C
3.1: 2,6-lutidine / CH2Cl2 / 0.5 h / -78 °C
3.2: CH2Cl2 / 0.75 h / -78 - 20 °C
4.1: 272.1 mg / CuBr / diethyl ether / 1 h / 0 °C
5.1: OsO4; aq. 4-methylmorpholine N-oxide / tetrahydrofuran; 2-methyl-propan-2-ol / 3 h / 20 °C
5.2: NaIO4 / tetrahydrofuran; 2-methyl-propan-2-ol / 3 h / 20 °C
6.1: BF3*OEt2 / CH2Cl2 / 0.67 h / -78 - 0 °C
7.1: 1.39 g / TBAF / tetrahydrofuran / 20 °C
8.1: 1.57 g / 4-methylmorpholine / CH2Cl2 / 36 h / 20 °C
9.1: 1.27 g / NaHCO3; MeI / acetonitrile; H2O / 35 °C
With
4-methyl-morpholine; 2,6-dimethylpyridine; osmium(VIII) oxide; camphor-10-sulfonic acid; boron trifluoride diethyl etherate; tetrabutyl ammonium fluoride; sodium hydride; sodium hydrogencarbonate; 4-methylmorpholine N-oxide; copper(I) bromide; methyl iodide;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; chloroform; water; N,N-dimethyl-formamide; acetonitrile; tert-butyl alcohol;
8.1: Michael reaction;
DOI:10.1021/ja066772y