Vol.:(0123456789) 1 3 Topics in Catalysis https://doi.org/10.1007/s11244-018-0910-9 ORIGINAL PAPER Decarboxylative Cross-Coupling of Cinnamic Acids Catalyzed by Iron- Based Covalent Organic Frameworks Jhonny M. C. Cifuentes 1  · Bruno X. Ferreira 1  · Pierre M. Esteves 2  · Camilla D. Buarque 1 © Springer Science+Business Media, LLC, part of Springer Nature 2018 Abstract FeCl 3 ·6H 2 O was anchored in the pores of a layered crystalline imine-based mesoporous covalent organic framework (TPB- DMTP-COF) with surface area of 1200 m 2 /g and pores of 34 Å, afording the material FeCl 3 @TPB-DMTP-COF that worked as iron based heterogeneous catalyst. This new porous material was used in the decarboxylative oxidation cross-coupling reaction of cinnamic acids showing good to excellent catalytic activity with good chemical yields and short reaction time. FeCl 3 @TPB-DMTP-COF exhibit moderate surface area (235 m 2 /g) and high thermal and chemical stability allowing it use for several catalytic cycles. Graphical Abstract Ar COOH O O + + ROOR Ar O O + CO 2 + 2 ROH FeCl 3 @COF Keywords COF · Heterogeneous catalysis · Iron · Decarboxylative cross-coupling · Cinnamic acids · 1,4-Dioxane · Cyclohexane 1 Introduction Micro- and mesoporous materials play an important role in heterogeneous catalysis. Important classes of such materi- als are zeolites (e.g. USY and ZSM-5) [1], mesoporous sili- cas [2], (e.g. SBA-15 and MCM-41) and related materials, and most of them are inorganic materials. More recently, other classes of micro- and mesoporous materials have emerged, such as metal-organic frameworks (MOFs) and the covalent-organic frameworks (COFs). MOFs consist Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11244-018-0910-9) contains supplementary material, which is available to authorized users. * Pierre M. Esteves pesteves@iq.ufrj.br * Camilla D. Buarque camilla-buarque@puc-rio.br Extended author information available on the last page of the article