Multi-step reaction with 10 steps
1: 94 percent / pTsOH / CH2Cl2 / 1 h / 0 °C
2: 97 percent / Li, liquid NH3 / diethyl ether / 0.67 h / -78 °C
3: NaOAc, PCC / CH2Cl2 / 1 h / Ambient temperature
4: tetrahydrofuran / 0.67 h / 0 °C
5: 81 percent / DIBAH / hexane / 0.08 h / -78 °C
6: 1) NaH / 1) DMF, 0 deg C, 30 min, 2) room temp., 36 h
7: 91 percent / TsOH*H2O / methanol / 2 h / Ambient temperature
8: PPh3, CCl4 / benzene / 24 h / Heating
9: dimethylformamide / 1 h / 0 °C
10: 1) BuLi, TMEDA, 2) metallic Na / 1) THF, -78 deg C, 10 min, 2) THF, 2-propanol, 5 h, reflux
With
tetrachloromethane; n-butyllithium; N,N,N,N,-tetramethylethylenediamine; ammonia; sodium acetate; sodium; lithium; sodium hydride; diisobutylaluminium hydride; toluene-4-sulfonic acid; triphenylphosphine; pyridinium chlorochromate;
In
tetrahydrofuran; methanol; diethyl ether; hexane; dichloromethane; N,N-dimethyl-formamide; benzene;
DOI:10.1021/jo00007a013