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Z‐Selective (Cross‐)Dimerization of Terminal Alkynes Catalyzed by an Iron Complex |
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| Authors: | Dr. Orestes Rivada‐Wheelaghan Dr. Subrata Chakraborty Dr. Linda J. W. Shimon Yehoshoa Ben‐David Prof. David Milstein |
| Affiliation: | 1. Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel;2. Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel |
| Abstract: | 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 %). |
| Keywords: | C− C coupling homogeneous catalysis hydroalkynylation iron pincer complexes |