Multi-step reaction with 14 steps
1.1: LiN(SiMe3)2 / tetrahydrofuran / -78 °C
1.2: tetrahydrofuran
2.1: LiAlH4 / diethyl ether
3.1: (COCl)2; DMSO; Et3N / CH2Cl2
4.1: BuLi / tetrahydrofuran
5.1: H2 / 10 percent Pd/C / ethyl acetate / 5 kg/cm2
6.1: LiAlH4 / diethyl ether
7.1: (COCl)2; DMSO; Et3N / CH2Cl2
8.1: PPh3; t-BuOK / toluene
9.1: BuLi; TMEDA / tetrahydrofuran / -78 °C
9.2: tetrahydrofuran
10.1: Et3N; DMAP / benzene
11.1: 95 percent / Bu3SnH; AIBN / toluene / 2 h / Heating
12.1: 89 percent / CF3COOH / CH2Cl2 / 0.25 h / 0 °C
13.1: O3 / CH2Cl2 / 0.17 h / -78 °C
13.2: 71 percent / PPh3 / CH2Cl2 / 0.25 h / 20 °C
14.1: LDA / tetrahydrofuran; hexane / 1 h / -78 °C
14.2: 63 percent / tetrahydrofuran; hexane / -20 - 20 °C
With
dmap; lithium aluminium tetrahydride; n-butyllithium; oxalyl dichloride; 2,2'-azobis(isobutyronitrile); N,N,N,N,-tetramethylethylenediamine; potassium tert-butylate; hydrogen; tri-n-butyl-tin hydride; ozone; dimethyl sulfoxide; triethylamine; triphenylphosphine; trifluoroacetic acid; lithium hexamethyldisilazane; lithium diisopropyl amide;
palladium on activated charcoal;
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; ethyl acetate; toluene; benzene;
3.1: Swern oxidation / 4.1: Horner-Emmons reaction / 7.1: Swern oxidation;
DOI:10.1039/b203243k