Synthesis

Cu (II)-promoted oxidative homocoupling reaction of terminal alkynes in supercritical carbon dioxide

HF Jiang, JY Tang, AZ Wang, GH Deng, SR Yang

Index: Jiang, Huan-Feng; Tang, Jin-Yu; Wang, A.-Zhong; Deng, Guo-Hua; Yang, Shao-Rong Synthesis, 2006 , # 7 p. 1155 - 1161

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Citation Number: 40

Abstract

Abstract Oxidative homocoupling reaction of various terminal alkynes in supercritical carbon dioxide (scCO 2) has been reported. The final optimized reaction conditions for the reaction in scCO 2 were determined to be cupric chloride (2 mmol), sodium acetate (2 mmol), methanol (1 mL) and CO 2 (14 MPa) at 40 C. Sodium acetate was superior to pyridine in the present reaction system. Methanol, as a co-solvent of scCO 2, was necessary to help ...