4.4 Article

Easy access to 3-indolyl 1,1,2,2-ethanetetracarboxylates from malonates and indoles catalyzed by Pd(OAc)2

Journal

TETRAHEDRON
Volume 72, Issue 49, Pages 8061-8065

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2016.10.042

Keywords

Malonate; Indolyl tetracarboxylates; Pd-catalyzed; Dehydrodimerization; C-H bond activation

Funding

  1. NSF of China [21572072]
  2. Xiamen Southern Oceanographic Center [15PYY052SF01]
  3. Science and Technology Bureau of Xiamen City [3502Z20150054]
  4. Huaqiao University [ZQN-PY317]

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A novel dehydrodimerization of malonates with indoles has been developed, providing simple and rapid access to 3-indolyl tetramethyl 1,1,2,2-ethanetetracarboxylates. Pd(OAc)(2)-catalyzed 'one pot' C(sp(2))-C(sp(3)) and C(sp(3)) C(sp(3)) cross-dehydrogenative-couplings of malonates with a variety of 2-aryl indoles were involved. The titled compounds were obtained in high yields with good functional group tolerance. (C) 2016 Elsevier Ltd. All rights reserved.

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