Lead-Halide Perovskites for Photocatalytic α-Alkylation of Aldehydes

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

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

Cost-effective and efficient photocatalysis are highly desirable in chemical synthesis. Here we demonstrate that readily prepared suspensions of APbBr 3 (A = Cs or methylammonium (MA)) type perovskite colloids (ca. 2-100 nm) can selectively photocatalyze carbon-carbon bond formation reactions, i.e., α-alkylations. Specifically, we demonstrate α-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 languageEnglish (US)
Pages (from-to)733-738
Number of pages6
JournalJournal of the American Chemical Society
Volume141
Issue number2
DOIs
StatePublished - Jan 16 2019

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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