Lead-Halide Perovskites for Photocatalytic α-Alkylation of Aldehydes

Document Type

Article

Publication Date

1-16-2019

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. ©

Identifier

85060110458 (Scopus)

Publication Title

Journal of the American Chemical Society

External Full Text Location

https://doi.org/10.1021/jacs.8b08720

e-ISSN

15205126

ISSN

00027863

PubMed ID

30602111

First Page

733

Last Page

738

Issue

2

Volume

141

Grant

1764142

Fund Ref

National Science Foundation

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