Multi-step reaction with 14 steps
1.1: t-BuLi / pentane; diethyl ether / 0.08 h / -78 °C
1.2: 85 percent / pentane; diethyl ether / 0.5 h / -78 °C
2.1: DIBAL-H / diethyl ether; hexane / 0.5 h / -78 °C
3.1: 97 percent / 2,6-lutidine; PPh3; CBr4 / acetonitrile / 0.5 h / 20 °C
4.1: 95 percent / N-methylpyrrolidinone / PdCl2(CH3CN)2 / 0.5 h / 20 °C
5.1: 94 percent / n-Bu4NF / tetrahydrofuran / 1.5 h / 50 °C
6.1: DMAP / tetrahydrofuran / 1 h / 20 °C
7.1: 98 mg / second generation Grubbs' catalyst / benzene / 1 h / 70 °C
8.1: 76 percent / HMPA; LiHMDS / tetrahydrofuran / 0.33 h / -78 °C
9.1: n-BuLi / tetrahydrofuran; hexane / 0.5 h / -78 °C
9.2: 60 percent / tetrahydrofuran; hexane / 0.25 h / -78 °C
10.1: PPTS / tetrahydrofuran; H2O / 18 h / 50 °C
11.1: NaClO2; NaH2PO4*H2O; 2-methyl-but-2-ene / 2-methyl-propan-2-ol; H2O / 1 h / 0 °C
12.1: diphenylphosphoryl azide; Et3N / toluene / 1 h / 20 °C
13.1: 10 mg / 1 h / 110 °C
14.1: 33 percent / Et3N / CH2Cl2 / 1 h / 20 °C
With
2,6-dimethylpyridine; 1-methyl-pyrrolidin-2-one; N,N,N,N,N,N-hexamethylphosphoric triamide; dmap; sodium chlorite; sodium dihydrogenphosphate; n-butyllithium; 2-methyl-but-2-ene; carbon tetrabromide; diphenylphosphoranyl azide; tetrabutyl ammonium fluoride; tert.-butyl lithium; pyridinium p-toluenesulfonate; diisobutylaluminium hydride; triethylamine; triphenylphosphine; lithium hexamethyldisilazane;
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride; dichloro bis(acetonitrile) palladium(II);
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; water; toluene; acetonitrile; tert-butyl alcohol; pentane; benzene;
4.1: Stille coupling reaction / 13.1: Curtius rearrangement;
DOI:10.1016/j.tet.2006.07.010