Multi-step reaction with 6 steps
1.1: trimethylaluminum / toluene / 4.67 h / 0 - 20 °C
1.2: 85 °C
2.1: sodium hydrogencarbonate / isopropyl alcohol / 85 °C
3.1: toluene-4-sulfonic acid / toluene / Heating / reflux
4.1: lithium hydroxide; water / methanol / 1 h / Heating / reflux
5.1: 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; triethylamine / tetrahydrofuran; ethyl acetate / 20 °C
6.1: tetrahydrofuran; diethyl ether / 1 h / 0 °C
With
lithium hydroxide; water; trimethylaluminum; sodium hydrogencarbonate; toluene-4-sulfonic acid; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide; triethylamine;
In
tetrahydrofuran; methanol; diethyl ether; ethyl acetate; isopropyl alcohol; toluene;