1: Mg / 1)preparation of Grignarg reagent in THF 2)5min, 20 deg C with XXX 3)stirred 4.5h, 20 deg C 4)stand overnight 5)reflux 10min 6)decomposed by tartaric acid water 2: 81 percent / HCl / H2O / 1 h / Heating View Scheme

magnesium 1)preparation of Grignarg reagent in THF 2)5min, 20 deg C with XXX 3)stirred 4.5h, 20 deg C 4)stand overnight 5)reflux 10min 6)decomposed by tartaric acid water; Yield given. Multistep reaction;