4.7 Article

Cyclopropanation of styrenes and stilbenes using lithiomethyl trimethylammonium triflate as methylene donor

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 73, Pages 10608-10610

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc04929b

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Funding

  1. Swiss National Science Foundation
  2. European Union [PIEF-GA-2010-275400]

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Lithiomethyl trimethylammonium triflate, prepared from tetramethylammonium triflate, cyclopropanates several styrenes and stilbenes with electron-donating and selected electron-withdrawing substituents efficiently. Kinetic data support a stepwise nucleophilic addition-ring closure mechanism for this methylenation.

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