Z-Selective (Cross-)Dimerization of Terminal Alkynes Catalyzed by an Iron Complex

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• 作者：Dr. Orestes Rivada-Wheelaghan ; Dr. Subrata Chakraborty ; Dr. Linda J. W. Shimon ; Yehoshoa Ben-David and Prof. David Milstein
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：June 6, 2016
• 年：2016
• 卷：55
• 期：24
• 页码：6942-6945
• 全文大小：699K
• ISSN：1521-3773

文摘

Efficient iron-catalyzed homocoupling of terminal alkynes and cross-dimerization of aryl acetylenes with trimethylsilylacetylene is reported. The complex [Fe(H)(BH₄)(iPr-PNP)] (1) catalyzed the (cross-)dimerization of alkynes at room temperature, with no need for a base or other additives, to give the corresponding dimerized products with Z selectivity in excellent yields (79–99 %).