Multi-step reaction with 17 steps
1.1: aq. AcOH
1.2: NaIO4
2.1: Et3N
3.1: N-methylmorpholine
4.1: NaI
5.1: 95 percent / N-Bu3SnH; Et3B
6.1: trifluoroacetic anhydride; pyridine
6.2: 84 percent / KOAc
7.1: 96 percent / MgBr2*Et2O
8.1: aq. OsO4; 4-methylmorpholine N-oxide / acetone / 1.5 h / 20 °C
9.1: aq. NaIO4 / ethanol / 1 h / 20 °C
10.1: 1.467 g / NaBH4 / H2O; ethanol / 0.5 h
11.1: 90 percent / Et3N / CH2Cl2 / 12 h / 0 °C
12.1: 80 percent / N-methylmorpholine / CH2Cl2 / 12 h / 20 °C
13.1: 93 percent / NaI / acetone / 9 h / Heating
14.1: 95 percent / N-Bu3SnH; Et3B / toluene; hexane / 0.5 h / -20 °C
15.1: pyridine; trifluoroacetic anhydride / acetonitrile / 0.33 h / 0 °C
15.2: 78 percent / aq. KOAc / acetonitrile / 1.33 h / 0 °C
16.1: Mg / diethyl ether / -78 °C
16.2: diethyl ether / 2 h / -78 °C
17.1: 99 percent / imidazole / CH2Cl2; dimethylformamide / 8 h / 20 °C
With
4-methyl-morpholine; pyridine; 1H-imidazole; sodium tetrahydroborate; sodium periodate; osmium(VIII) oxide; triethyl borane; tri-n-butyl-tin hydride; magnesium; acetic acid; 4-methylmorpholine N-oxide; triethylamine; trifluoroacetic anhydride; sodium iodide; magnesium bromide;
In
diethyl ether; ethanol; hexane; dichloromethane; water; N,N-dimethyl-formamide; acetone; toluene; acetonitrile;
6.1: Pummerer rearrangement / 15.1: Pummerer rearrangement;
DOI:10.1021/ja0526867