Multi-step reaction with 10 steps
1.1: sodium azide; sodium iodide / N,N-dimethyl-formamide / 24 h / 20 °C
2.1: triphenylphosphine / tetrahydrofuran; water / 20 h / 20 - 60 °C / Inert atmosphere
3.1: D-pyrrolidone-5-carboxylic acid; 5-Nitrosalicylaldehyde / water; isopropyl alcohol / 48 h / 70 °C / Inert atmosphere
4.1: water; acetonitrile / 0.67 h / 73 °C
5.1: triethylamine / N,N-dimethyl-formamide; chloroform / 20 h / Inert atmosphere
6.1: sodium hydride / N,N-dimethyl-formamide / 0.67 h / Cooling with ice; Inert atmosphere
6.2: 17 h / 20 °C / Cooling with ice
7.1: toluene-4-sulfonic acid / methanol / 0.75 h / 75 °C
8.1: (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / dichloromethane / 4 h / 20 °C
9.1: trifluoroacetic acid / dichloromethane / 5 h / 20 °C
10.1: triethylamine / N,N-dimethyl-formamide / 96 h / 20 °C
With
sodium azide; sodium hydride; (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; toluene-4-sulfonic acid; 5-Nitrosalicylaldehyde; triethylamine; N-ethyl-N,N-diisopropylamine; triphenylphosphine; trifluoroacetic acid; sodium iodide; D-pyrrolidone-5-carboxylic acid;
In
tetrahydrofuran; methanol; dichloromethane; chloroform; water; N,N-dimethyl-formamide; isopropyl alcohol; acetonitrile;
2.1: |Staudinger Azide Reduction;
DOI:10.1039/c2ob26695d