Multi-step reaction with 12 steps
1.1: 90 percent / CF3SO3H / cyclohexane / 0 - 20 °C
2.1: 60 percent / iPrMgBr / tetrahydrofuran / -10 °C
3.1: 92 percent / tBuLi / diethyl ether; hexane / -78 °C
4.1: 93 percent / Zn(BH4)2 / diethyl ether / -78 - -30 °C
5.1: 95 percent / 2,6-lutidine / CH2Cl2 / 0 - 20 °C
6.1: BuLi / tetrahydrofuran / -78 - -30 °C
7.1: TBAF / tetrahydrofuran / 20 °C
8.1: p-TsOH / benzene / 20 °C
8.2: aq. HCl / tetrahydrofuran / 0 °C
9.1: imidazole / CH2Cl2 / 20 °C
10.1: 85 percent / Li; NH3 / -78 - -30 °C
11.1: CF3SO3H / CH2Cl2; cyclohexane / 0 °C
12.1: TBAF / tetrahydrofuran / 20 °C
With
1H-imidazole; 2,6-dimethylpyridine; n-butyllithium; zinc(II) tetrahydroborate; trifluorormethanesulfonic acid; tetrabutyl ammonium fluoride; ammonia; tert.-butyl lithium; isopropylmagnesium bromide; lithium; toluene-4-sulfonic acid;
In
tetrahydrofuran; diethyl ether; hexane; dichloromethane; cyclohexane; benzene;
6.1: ether <1,2> Wittig rearrangement;
DOI:10.1002/1521-3773(20001215)39:24<4502::AID-ANIE4502>3.0.CO;2-K