Ru‐Catalyzed Branched versus Linear Selective C3‐Alkylation of 2‐Aroylbenzofurans with Acrylates via CH Activation

Chemistry - A European Journal - Tập 20 Số 26 - Trang 7884-7889 - 2014
Yadagiri Kommagalla1, Kolluru Srinivas1, Chepuri V. Ramana1
1Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune—411 008 (India), Fax: (+91) 20 2590 2629

Tóm tắt

AbstractThe carbonyl‐directed C3H activation and alkylation of 2‐aroylbenzo[b]furans with acrylates occurs selectively either in a linear or branched fashion, depending on the catalyst employed; [Ru(p‐cymene)Cl2]2 or Ru(PPh3)3Cl2, respectively. Two alternate pathways—funded upon the differences in steric and electronic preferences of these two complexes—is proposed for the selectivity of linear versus branched products.

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