Silvia Cattani, Filippo Cordovani, Davide Balestri, João C. A. Oliveira, Sven Erik Peters, Lutz Ackermann* and Gianpiero Cera*,
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Z-Selective Iron-Catalyzed C–H Alkylations with Allenes: Access to Stereodefined Olefins
We report an unprecedented iron-catalyzed C–H alkylation of widespread benzamides using readily available allenes. The method, based on cheap, nontoxic, and earth abundant iron catalysts, exploits the assistance of removable triazole directing groups to yield a wide array of Z internal olefins, even at room temperature, with excellent stereocontrol, good yields, and broad functional group tolerance.
期刊介绍:
Organic Letters invites original reports of fundamental research in all branches of the theory and practice of organic, physical organic, organometallic,medicinal, and bioorganic chemistry. Organic Letters provides rapid disclosure of the key elements of significant studies that are of interest to a large portion of the organic community. In selecting manuscripts for publication, the Editors place emphasis on the originality, quality and wide interest of the work. Authors should provide enough background information to place the new disclosure in context and to justify the rapid publication format. Back-to-back Letters will be considered. Full details should be reserved for an Article, which should appear in due course.