TY - JOUR
T1 - Oxidative coupling of carboxylic acids or benzaldehydes with DMF using hydrotalicite-derived oxide catalysts
AU - Samudrala, Priya S.
AU - Nakhate, Akhil V.
AU - Gupta, Shyam Sunder R.
AU - Rasal, Kalidas B.
AU - Deshmukh, Gunjan P.
AU - Gadipelly, Chandrakanth R.
AU - Theegala, Srinivas
AU - Dumbre, Deepa K.
AU - Periasamy, Selvakannan
AU - Komandur, V. R.Chary
AU - Bhargava, Suresh K.
AU - Mannepalli, Lakshmi Kantam
N1 - Funding Information:
AVN gratefully acknowledges the support provided by Vinati Organics Ltd. SSG acknowledges the support provided by Godrej Consumer Products Limited (GCPL). SSP is grateful to the IICT-RMIT Joint Research program for providing the research facilities and fellowship. KBR gratefully acknowledges the support provided by J.C. Bose grant. We thank the RMIT Microscopy and Microanalysis facility staff members for their scientific and technical assistance. MLK gratefully acknowledges support from - (GCPL) for Dr. B. P. Godrej Distinguished Chair Professor and J.C. Bose National Fellowship (DST, GoI).
Funding Information:
AVN gratefully acknowledges the support provided by Vinati Organics Ltd. SSG acknowledges the support provided by Godrej Consumer Products Limited (GCPL). SSP is grateful to the IICT-RMIT Joint Research program for providing the research facilities and fellowship. KBR gratefully acknowledges the support provided by J.C. Bose grant. We thank the RMIT Microscopy and Microanalysis facility staff members for their scientific and technical assistance. MLK gratefully acknowledges support from - (GCPL) for Dr. B. P. Godrej Distinguished Chair Professor and J.C. Bose National Fellowship (DST, GoI).
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2019/1
Y1 - 2019/1
N2 - Hydrotalcite-derived (HT-derived) oxide catalysts were synthesised from hydrotalcite-like (HT-like) materials prepared by co-precipitation method (Cu-Al, Cu-Fe, Mg-Al, Mg-Fe, Ni-Fe and Ni-Al) followed by calcination and their catalytic activity was studied for oxidative amidation of carboxylic acids and substituted benzaldehydes with N,N-dimethylformamide (DMF). Catalyst screening was done using benzoic acid and DMF as a model reaction. Subsequently, we have optimised the reaction with different reaction parameters, catalyst loading, temperatures and oxidants. Cu-Fe HT-derived oxide catalyst showed excellent activity towards oxidative amidation using TBHP as an oxidant at 80 °C in 10 h. The fresh and spent catalysts were thoroughly characterised by different analytical techniques; XRD, SEM, HRTEM, TPD, N2 adsorption-desorption isotherm and XPS. Moreover, the catalyst was easily separated by simple filtration and reused up to four cycles without significant loss in catalytic activity.
AB - Hydrotalcite-derived (HT-derived) oxide catalysts were synthesised from hydrotalcite-like (HT-like) materials prepared by co-precipitation method (Cu-Al, Cu-Fe, Mg-Al, Mg-Fe, Ni-Fe and Ni-Al) followed by calcination and their catalytic activity was studied for oxidative amidation of carboxylic acids and substituted benzaldehydes with N,N-dimethylformamide (DMF). Catalyst screening was done using benzoic acid and DMF as a model reaction. Subsequently, we have optimised the reaction with different reaction parameters, catalyst loading, temperatures and oxidants. Cu-Fe HT-derived oxide catalyst showed excellent activity towards oxidative amidation using TBHP as an oxidant at 80 °C in 10 h. The fresh and spent catalysts were thoroughly characterised by different analytical techniques; XRD, SEM, HRTEM, TPD, N2 adsorption-desorption isotherm and XPS. Moreover, the catalyst was easily separated by simple filtration and reused up to four cycles without significant loss in catalytic activity.
KW - Aldehydes
KW - Carboxylic acid
KW - Dimethylformamide
KW - Heterogeneous catalyst
KW - Oxidative coupling
UR - https://www.scopus.com/pages/publications/85039555144
U2 - 10.1016/j.apcatb.2017.12.058
DO - 10.1016/j.apcatb.2017.12.058
M3 - Article
AN - SCOPUS:85039555144
SN - 0926-3373
VL - 240
SP - 348
EP - 357
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
ER -