Highly selective one-step dehydration, decarboxylation and hydrogenation of citric acid to methylsuccinic acid† †Electronic supplementary information (ESI) available: Experimental details, catalyst characterisation, time course, P H2 optimisation for 0.5 mol% Pd, isotopic labelling experiment and product identification. See DOI: 10.1039/c6sc04541c Click here for additional data file.
نویسندگان
چکیده
The one-step dehydration, decarboxylation and hydrogenation of the bio-based and widely available citric acid is presented. This reaction sequence yields methylsuccinic acid with yields of up to 89%. Optimal balances between the reaction rates of the different steps were found by varying the hydrogenation catalyst and the reaction parameters (H2 pressure, pH, temperature, time and catalyst-to-substrate ratio).
منابع مشابه
Highly selective one-step dehydration, decarboxylation and hydrogenation of citric acid to methylsuccinic acid.
The one-step dehydration, decarboxylation and hydrogenation of the bio-based and widely available citric acid is presented. This reaction sequence yields methylsuccinic acid with yields of up to 89%. Optimal balances between the reaction rates of the different steps were found by varying the hydrogenation catalyst and the reaction parameters (H2 pressure, pH, temperature, time and catalyst-to-s...
متن کاملPd-catalyzed asymmetric hydrogenation of fluorinated aromatic pyrazol-5-ols via capture of active tautomers† †Electronic supplementary information (ESI) available. CCDC 1040656–1040658. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc00835b Click here for additional data file. Click here for additional data file.
متن کامل
Dehydrogenation, disproportionation and transfer hydrogenation reactions of formic acid catalyzed by molybdenum hydride compounds† †Electronic supplementary information (ESI) available. CCDC 1028432. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c4sc03128h Click here for additional data file. Click here for additional data file.
متن کامل
Electrophilic bis-fluorophosphonium dications: Lewis acid catalysts from diphosphines† †Electronic supplementary information (ESI) available: Preparative, spectroscopic and analytical details for the experiments described herein. CCDC 1041558–1041565. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc00051c Click here for additional data file. Click here for additional data file.
متن کامل
Solar H2 evolution in water with modified diketopyrrolopyrrole dyes immobilised on molecular Co and Ni catalyst–TiO2 hybrids† †Electronic supplementary information (ESI) available: Experimental details, synthetic procedures, additional tables and figures. See DOI: 10.1039/c6sc05219c Click here for additional data file.
Experimental Section pages S2 – S16
متن کامل