SEARCH Articles Figures Tables L- propyne Propynal Propyne Propyne, 1,3-bis anion Propyne, 3- anion Propyne, l,3-bis dilithium anion Propyne, l,3-bis dilithium anion 1,3-enynes from Propyne, l,3-bis dilithium anion reaction with aliphatic carbonyl compounds Propynes