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Porous FeO(OH) Dispersed on Mg‐Al Hydrotalcite Surface for One‐Pot Synthesis of Quinoline Derivatives
Author(s) -
Motokura Ken,
Ozawa Nao,
Sato Risako,
Manaka Yuichi,
Chun WangJae
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100338
Subject(s) - hydrotalcite , quinoline , catalysis , bifunctional , heterogeneous catalysis , chemistry , one pot synthesis , noble metal , green chemistry , porosity , inorganic chemistry , organic chemistry , chemical engineering , reaction mechanism , engineering
The use of ubiquities elements such as iron instead of expensive precious metals as catalysts is one goal toward realizing environmentally benign synthetic chemistry. Here, we report that porous FeO(OH) dispersed on Mg−Al hydrotalcite acts as a bifunctional heterogeneous catalyst in the one‐pot synthesis of 2‐substituted quinoline derivatives through dehydrogenative oxidation‐cyclization reactions. The catalyst was prepared by a simple grafting method using FeCl 3 and Mg−Al hydrotalcite. The prepared porous FeO(OH) possesses a higher surface area than those previously reported for α‐FeO(OH) particles. The one‐pot quinoline synthesis proceeded effectively under non‐noble‐metal catalysis in air without requiring additional homogeneous bases or solvents.