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Open AccessArticle

Stereolithography 3D-Printed Catalytically Active Devices in Organic Synthesis

Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
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Catalysts 2020, 10(1), 109; https://doi.org/10.3390/catal10010109
Received: 12 December 2019 / Revised: 24 December 2019 / Accepted: 8 January 2020 / Published: 12 January 2020
(This article belongs to the Special Issue Supported Metal Catalysts and Their Applications in Fine Chemicals)
This article describes the synthesis of stereolithography (SLA) 3D-printed catalyst-impregnated devices and their evaluation in the organocatalyzed Friedel–Crafts alkylation of N–Me–indole with trans-β-nitrostyrene. Using a low-cost SLA 3D printer and freeware design software, different devices were designed and 3D-printed using a photopolymerizable resin containing a thiourea-based organocatalyst. The architectural control offered by the 3D-printing process allows a straightforward production of devices endowed with different shapes and surface areas, with high reproducibility. The 3D-printed organocatalytic materials promoted the formation of the desired product up to a 79% yield, although with longer reaction times compared to reactions under homogeneous conditions. View Full-Text
Keywords: heterogeneous catalysis; stereolithography; 3D printing; additive manufacturing; thiourea heterogeneous catalysis; stereolithography; 3D printing; additive manufacturing; thiourea
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Rossi, S.; Puglisi, A.; Raimondi, L.M.; Benaglia, M. Stereolithography 3D-Printed Catalytically Active Devices in Organic Synthesis. Catalysts 2020, 10, 109.

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