Lead-Halide Perovskites for Photocatalytic ..alpha..-Alkylation of Aldehydes

Matthew Beard, Xiaolin Zhu, Yixiong Lin, Yue Sun, Yong Yan

Research output: Contribution to journalArticlepeer-review

247 Scopus Citations

Abstract

Cost-effective and efficient photocatalysis are highly desirable in chemical synthesis. Here we demonstrate that readily prepared suspensions of APbBr3 (A = Cs or methylammonium (MA)) type perovskite colloids (ca. 2-100 nm) can selectively photocatalyze carbon-carbon bond formation reactions, i.e., ..alpha..-alkylations. Specifically, we demonstrate ..alpha..-alkylation of aldehydes with a turnover number (TON) of over 52,000 under visible light illumination. Hybrid organic/inorganic perovskites are revolutionizing photovoltaic research and are now impacting other research fields, but their exploration in organic synthesis is rare. Our low-cost, easy-to-process, highly efficient and bandedge-tunable perovskite photocatalyst is expected to bring new insights in chemical synthesis.
Original languageAmerican English
Pages (from-to)733-738
Number of pages6
JournalJournal of the American Chemical Society
Volume141
Issue number2
DOIs
StatePublished - 2019

NREL Publication Number

  • NREL/JA-5900-72210

Keywords

  • nanocrystals
  • perovskite
  • photocatalysts
  • quantum dots

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