polymethylhydrosiloxane; 2,2'-azo-bisisobutyronitrile; tributyltin chloride; potassium fluoride in water; toluene 3 h; Heating;

tetrabutyl ammonium fluoride in tetrahydrofuran T=0°C; 1 h;

n-butyllithium; perchloryl fluoride in hexane; toluene T=-100 - -80°C; 1 h;

in ethanol T=25 - 30°C; electrolysis: Cd-cathode, 0.5 N aq. K2HPO4, (C2H5)4NCl, 5.0 A (current density 0.083 A cm-2), pH 7.5-8.0;

hydrogen; triethylamine; nickel in ethanol 30 h;

1.1: 83 percent / sodium hydride / dimethylformamide 2.1: 1.39 g / m-chloroperoxybenzoic acid / CH2Cl2; CHCl3 3.1: potassium hydride / tetrahydrofuran / 1.25 h / 0 - 20 °C 3.2: 63 percent / Selectfluor / tetrahydrofuran; dimethylformamide / 2.08 h 4.1: 91 percent / tributyltin chloride; 2,2'-azobisisobutyronitrile; polymethylhydrosiloxane / potassium fluoride / toluene; H2O / 3 h / Heating View Scheme

1.1: 1.39 g / m-chloroperoxybenzoic acid / CH2Cl2; CHCl3 2.1: potassium hydride / tetrahydrofuran / 1.25 h / 0 - 20 °C 2.2: 63 percent / Selectfluor / tetrahydrofuran; dimethylformamide / 2.08 h 3.1: 91 percent / tributyltin chloride; 2,2'-azobisisobutyronitrile; polymethylhydrosiloxane / potassium fluoride / toluene; H2O / 3 h / Heating View Scheme

1.1: potassium hydride / tetrahydrofuran / 1.25 h / 0 - 20 °C 1.2: 63 percent / Selectfluor / tetrahydrofuran; dimethylformamide / 2.08 h 2.1: 91 percent / tributyltin chloride; 2,2'-azobisisobutyronitrile; polymethylhydrosiloxane / potassium fluoride / toluene; H2O / 3 h / Heating View Scheme

ethanol; lithium ethanolate in tetrahydrofuran T=-78 - 0°C; Yield given;

n-butyllithium; chloro-trimethyl-silane; ethanol 1.) -80 deg C; Multistep reaction;