Question

Using both Grignard and Wittig reactions outline a synthesis of 7-cyclobutyl-2,5-dimethylhept- 4-ene [no specific dh, stereochemistry] starting with cvclobutvl bromide, ethylene oxide, ethanol and isopentyl bromide as the only allowed carbon sources and any needed inorganic reagents

Answer 1

PPh3 Br PPh3 Br MgBr 0 он Mg Mg HBr ether dry ether 0 PCC он он 0 H2CrO4