Multi-step reaction with 13 steps
1.1: ClCH2CO2H; aq. NaOH; acetic acid / 144 h / 40 °C
2.1: 80 percent / SnCl2 / CH2Cl2 / 1 h / 20 °C
3.1: H2; (R)-(+)-BINAP / [RuCl2(PhH)]2 / dimethylformamide / 20 h / 90 °C / 3000.24 Torr
4.1: imidazole; DMAP / dimethylformamide / 48 h
5.1: DIBAH / CH2Cl2; hexane / 3.5 h / -78 °C
6.1: 5.67 g / TiCl4; (-)-sparteine / CH2Cl2 / 1 h / 0 °C
7.1: 81 percent / (iPr)2NEt; tetrabutylammonium iodide / CH2Cl2 / 72 h / 20 °C
8.1: 77 percent / LiBH4 / methanol; tetrahydrofuran / 20 °C
9.1: 98 percent / pyridine / 2 h / 0 °C
10.1: 84 percent / NaI; DBU / various solvent(s) / 3 h / Heating
11.1: 9-BBN / tetrahydrofuran / 4 h / 20 °C
11.2: 65 percent / Cs2CO3; aq. AsPh3; PdCl2(dppf) / tetrahydrofuran / 12 h
12.1: 100 percent / TBAF / tetrahydrofuran / 48 h
13.1: 91 percent / aq. LiOH / tetrahydrofuran; methanol / 72 h / 70 °C
With
pyridine; 1H-imidazole; dmap; lithium hydroxide; sodium hydroxide; lithium borohydride; 9-borabicyclo[3.3.1]nonane dimer; tetrabutyl ammonium fluoride; hydrogen; titanium tetrachloride; tetra-(n-butyl)ammonium iodide; diisobutylaluminium hydride; acetic acid; 1,8-diazabicyclo[5.4.0]undec-7-ene; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl; N-ethyl-N,N-diisopropylamine; chloroacetic acid; sodium iodide; tin(ll) chloride; (-)-sparteine;
dichloro(benzene)ruthenium(II) dimer;
In
tetrahydrofuran; methanol; hexane; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jo035054g