Multi-step reaction with 13 steps
1.1: selenium(IV) oxide; sulfuric acid / methanol / 5 h / 20 °C / Cooling with ice
2.1: dihydrogen peroxide; pyridine / dichloromethane / 20 °C / Cooling with ice
3.1: copper(l) iodide / tetrahydrofuran / 0.5 h / -78 °C
3.2: 2 h / -78 - -50 °C
4.1: boron trifluoride diethyl etherate / acetic anhydride / 20 °C / Cooling with ice
5.1: sodium hydride; methanol / mineral oil / 0.5 h / 20 °C
6.1: potassium tert-butylate / tetrahydrofuran / 0.17 h / 0 °C
6.2: 1 h / Reflux
7.1: potassium hydroxide / propan-1-ol / 1 h / 20 °C / Reflux
8.1: ethyl acetate; diethyl ether / 0.08 h / 0 °C
9.1: lithium diisopropyl amide / tetrahydrofuran / -78 °C
9.2: 0.5 h / -78 °C
10.1: sodium hydrogencarbonate / para-xylene / 12 h / Reflux
11.1: lithium aluminium tetrahydride / tetrahydrofuran / 0.5 h / 0 °C
12.1: triethylamine; dmap / dichloromethane / 17 h / Reflux
13.1: sodium tetrahydroborate / N,N-dimethyl-formamide / 12 h / 80 °C / Cooling with ice
With
pyridine; methanol; dmap; selenium(IV) oxide; sodium tetrahydroborate; copper(l) iodide; lithium aluminium tetrahydride; sulfuric acid; boron trifluoride diethyl etherate; potassium tert-butylate; dihydrogen peroxide; sodium hydride; sodium hydrogencarbonate; triethylamine; potassium hydroxide; lithium diisopropyl amide;
In
tetrahydrofuran; methanol; propan-1-ol; diethyl ether; dichloromethane; para-xylene; acetic anhydride; ethyl acetate; N,N-dimethyl-formamide; mineral oil;
DOI:10.1002/chem.201303538