sodium hydroxide; copper(l) chloride in methanol; water pH 7.5 - 8.5;

1: (RS)-3-hydroxybut-1-yne With sodium bis(2-methoxyethoxy)aluminium dihydride in diethyl ether; toluene 2: With methyllithium in diethyl ether; toluene 3: allyl bromide With copper(l) chloride in tetrahydrofuran; diethyl ether; toluene

copper(l) iodide; n-butyllithium Multistep reaction;

1.)adding of organo-metallic compound at 20 deg C, then 2h at 35 deg C, 2.)adding of CH3CHO at 0 deg C, then 1h at 20 deg C; Yield given. Multistep reaction;

copper; zinc in methanol T=120°C;