Multi-step reaction with 13 steps
1.1: 52 percent / Br2 / acetic acid
2.1: 57 percent / sulfuric acid / 16 h
3.1: 2,6-lutidine
4.1: 92 percent / DDQ; buffer / CH2Cl2; H2O / 1 h / pH 7
5.1: DMSO; oxalyl chloride; triethylamine / CH2Cl2 / 0.5 h / -78 - 0 °C
6.1: triphenylphosphine / CH2Cl2 / 0.08 h
7.1: 0.37 g / n-BuLi / tetrahydrofuran / 0.25 h / -78 °C
8.1: 99 percent / TBAF; acetic acid / tetrahydrofuran / 2 h
9.1: 98 percent / pyridine / 18 h / 23 °C
10.1: heptane / 14 h / 57 °C
10.2: 35 percent / air / heptane; ethyl acetate / 0.25 h
11.1: 89 percent / ceric ammonium nitrate / acetonitrile; H2O / 0.08 h
12.1: 87 percent / sodium ethoxide / ethanol / 2 h / 0 °C
With
pyridine; 2,6-dimethylpyridine; n-butyllithium; oxalyl dichloride; ammonium cerium(IV) nitrate; sulfuric acid; tetrabutyl ammonium fluoride; bromine; sodium ethanolate; acetic acid; dimethyl sulfoxide; triethylamine; triphenylphosphine; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
tetrahydrofuran; ethanol; n-heptane; dichloromethane; water; acetic acid; acetonitrile;
6.1: Swern oxidation / 11.1: Doetz benzannulation;
DOI:10.1021/jo049426c