Catalyst-free photocyclopropanation of dibromomalonates with alkenes: An approach to multisubstituted cyclopropanes

Yanbin Zhang, Yong An, Jing Sun, Aishun Ding, Yu Wang, Ramon Rios, Hao Guo

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

We report herein a novel photocyclopropanation of dibromomalonates with alkenes in the presence of Hünig base. This protocol provides an environmentally benign approach for the synthesis of multisubstituted cyclopropanes, since no catalyst is required. The Photo-induced Electron Transfer (PET) from Hünig base to dibromomalonate is the key process during this transformation.

Original languageBritish English
Pages (from-to)6499-6502
Number of pages4
JournalTetrahedron Letters
Volume56
Issue number46
DOIs
StatePublished - 18 Nov 2015

Keywords

  • Catalyst-free
  • Cyclopropanation
  • Cyclopropane
  • Mechanism
  • Photochemistry

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