Multi-step reaction with 9 steps
1.1: sulfuric acid / methanol / Reflux
2.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -15 - 0 °C
3.1: Chiralpak Diacel AD / methanol / Supercritical conditions
4.1: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.5 h / -78 °C
4.2: 1.5 h / -15 - 0 °C
5.1: tetraphosphorus decasulfide / tetrahydrofuran / 0.83 h / 50 °C
6.1: ammonium hydroxide / 4 h / 60 °C / Sealed tube
7.1: tris-(dibenzylideneacetone)dipalladium(0); 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; sodium t-butanolate / toluene / 20 °C / Sealed tube; Inert atmosphere
7.2: 2 h / 100 °C
7.3: 0.5 h / 20 °C
8.1: ammonia / methanol
9.1: 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride / methanol / 3 h / 20 °C
With
ammonium hydroxide; tris-(dibenzylideneacetone)dipalladium(0); lithium aluminium tetrahydride; tetraphosphorus decasulfide; sulfuric acid; ammonia; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; N-ethyl-N,N-diisopropylamine; 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride; sodium t-butanolate;
In
tetrahydrofuran; methanol; toluene;
4.2: |Williamson Ether Synthesis;
DOI:10.1021/acs.jmedchem.5b01101