Multi-step reaction with 7 steps
1.1: NaH / dimethylformamide / 0.25 h / 0 °C
1.2: 98 percent / dimethylformamide / 3 h
2.1: hydrogen chloride / dioxane / 20 °C
2.2: 61 percent / pyridine / 3 h
3.1: 84 percent / ZnI2 / CH2Cl2 / 20 °C
4.1: 92 percent / sodium methoxide / methanol; tetrahydrofuran / 2 h / 20 °C
5.1: 98 percent / 2,4,6-collidine; tetrabutylammonium perchlorate / CH2Cl2 / 2 h / 20 °C
6.1: 94 percent / NaH / dimethylformamide / 2 h / 0 °C
7.1: trifluoroacetic acid / CH2Cl2 / 2 h / 20 °C
7.2: 86 percent / NaHCO3 / tetrahydrofuran; H2O / 0.5 h / 20 °C
With
2,4,6-trimethyl-pyridine; hydrogenchloride; tetrabutylammonium perchlorate; sodium methylate; sodium hydride; trifluoroacetic acid; zinc(II) iodide;
In
tetrahydrofuran; 1,4-dioxane; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1002/ejoc.200300248