Multi-step reaction with 5 steps
1.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 14 h / 0 - 20 °C
2.1: 1H-tetrazole / acetonitrile / 4 h / 0 - 20 °C
2.2: 1 h / 0 - 20 °C
3.1: trifluoroacetic acid / dichloromethane / 2 h / 0 - 20 °C
4.1: O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 14 h / 20 °C
5.1: tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride / dichloromethane / 22.5 h / 45 °C / Inert atmosphere
With
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; 1H-tetrazole; tetrabutyl ammonium fluoride; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1002/cmdc.201700048