Multi-step reaction with 10 steps
1.1: N,N-dimethyl-formamide; oxalyl dichloride / dichloromethane / 20 °C
2.1: zinc dibromide / tetrahydrofuran; diethyl ether / 0.75 h / -78 - 20 °C
2.2: 16 h / -78 - 20 °C
3.1: tert-butyl alcohol; diethylamine; zinc(II) chloride / benzene / 120 h / 20 °C / Inert atmosphere
4.1: (R)-α,α-diphenylprolinol; Trimethyl borate; borane Ν,Ν-diethylaniline complex / tetrahydrofuran / 0 - 20 °C
5.1: triethylamine / dichloromethane / 1.5 h / 0 °C
6.1: N-ethyl-N,N-diisopropylamine / acetonitrile / 36 h / 75 °C
7.1: 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; tris-(dibenzylideneacetone)dipalladium(0) / 1,4-dioxane / 1.5 h / 100 °C / Inert atmosphere; Sealed tube
8.1: platinum(IV) oxide; hydrogen / tetrahydrofuran; ethanol / 1.5 h / 760.05 Torr
9.1: acetic acid / toluene / 3 h / 70 °C
10.1: hydrogenchloride / 1,4-dioxane / 2 h / 20 °C
With
hydrogenchloride; platinum(IV) oxide; tris-(dibenzylideneacetone)dipalladium(0); oxalyl dichloride; borane Ν,Ν-diethylaniline complex; Trimethyl borate; hydrogen; (R)-α,α-diphenylprolinol; acetic acid; diethylamine; triethylamine; N-ethyl-N,N-diisopropylamine; N,N-dimethyl-formamide; 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene; zinc(II) chloride; zinc dibromide; tert-butyl alcohol;
In
tetrahydrofuran; 1,4-dioxane; diethyl ether; ethanol; dichloromethane; toluene; acetonitrile; benzene;
7.1: |Buchwald-Hartwig Coupling;
DOI:10.1021/acs.jmedchem.8b00082