Direct Exploitation of the Ethynyl Moiety in Calcium Carbide .
WEBMay 29, 2020 · Ball milling of calcium carbide (CaC 2) enables the reaction of its ethynyl moiety with organic was realized simply by comilling CaC 2 with organic substrates in a sealed jar without the need for an additive or a alyst. Various ketones including those bearing αhydrogens were ethynylated in good yields at short reaction .