Multi-step reaction with 7 steps
1.1: NaH / dimethylformamide / 10 h / 0 °C
1.2: dimethylformamide / 20 °C
2.1: 26.6 g / m-chloroperbenzoic acid / CH2Cl2
3.1: (1S,2S)-1,2-(cC6H10N2-N,N'-[3,5-(t-Bu)2-salicylidene]2Co(II); acetic acid / 1 h / 20 °C
3.2: water / tetrahydrofuran / 48 h / 20 °C
4.1: Mg / tetrahydrofuran / 2 h / Heating
4.2: 64 percent / CuCl(COD) / tetrahydrofuran / 3 h / -40 - -10 °C
5.1: 88 percent / silver triflate; 2,6-di-tert-butylpyridine / CH2Cl2 / 1.5 h / -40 - -20 °C
6.1: NaOMe / methanol
7.1: 2.0 g / 4-dimethylaminopyridine; triethylamine / CH2Cl2
With
dmap; [(S,S)-N,N’-bis(3,5-di-tertbutylsalicylidene)-1,2-cyclohexanediaminato(2-)]cobalt(II); 2,6-di-tert-butyl-pyridine; sodium methylate; silver trifluoromethanesulfonate; sodium hydride; magnesium; acetic acid; triethylamine; 3-chloro-benzenecarboperoxoic acid;
In
tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/ja036521e