Multi-step reaction with 9 steps
1.1: sodium hydride / N,N-dimethyl-formamide / 1 h / -18 - 0 °C
1.2: 4 h / -18 - 20 °C
2.1: hydrogenchloride / 1,4-dioxane; water / 20 °C
3.1: phosphoric acid; sodium azide / tetrahydrofuran; water / 4 h / 60 °C
4.1: sodium hydride / N,N-dimethyl-formamide / 0.5 h / -5 °C
4.2: 2 h / 20 °C
5.1: 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; n-butyllithium / tetrahydrofuran; hexane / 1.67 h / -78 °C
5.2: 9 h / -18 - 70 °C
6.1: N-Bromosuccinimide / tetrahydrofuran / 0 °C
7.1: tetrahydrofuran; 1,4-dioxane / 12 h / 120 °C / Molecular sieve; Sealed tube
8.1: aluminum (III) chloride / dichloromethane / 1 h / 20 °C
9.1: pyridine; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione / dimethyl sulfoxide / 1 h / 35 °C
With
pyridine; hydrogenchloride; 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone; aluminum (III) chloride; N-Bromosuccinimide; n-butyllithium; sodium azide; phosphoric acid; sodium hydride; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
In
tetrahydrofuran; 1,4-dioxane; hexane; dichloromethane; water; dimethyl sulfoxide; N,N-dimethyl-formamide;
DOI:10.1021/jo402165n