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Ahmed, Jasimuddin; Swain, Asim Kumar; Das, Arpan; Govindarajan, R; Bhunia, Mrinal; Mandal, Swadhin K
Chemical communications (Cambridge, England), 11/2019, Letnik: 55, Številka: 92Journal Article
Herein we report a transition metal free catalytic terminal alkyne functionalization across the C-X triple bond (X = CH and N) with E -selective homo (alkyne-alkyne) and head-to-tail selective hetero (alkyne-nitrile) dimerization. A series of stoichiometric reactions enabled us to crystallize a reactive organometallic intermediate K-arylacetylide complex which was characterized by X-ray crystallography, indicating that an ionic mechanism is operative. E -Selective alkyne-alkyne dimerization as well as terminal alkyne functionalization across the C-N triple bond under transition metal free conditions at room temperature was accomplished.
