Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones

Research output: Contribution to conferenceAbstract

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Abstract

Selective hydrogenation of α,β-unsaturated aldehydes and ketones is of great importance in the production of fine chemical and pharmaceutical industry. Noble metals such as Au, Pt, Re, Ru and Ir are often used as active catalyst sites in chemo-selective hydrogenations. However, considering the expensive cost and limited abundance of noble metals, it is of high interest to develop non-noble metal catalysts for chemo-selective hydrogenations. We have previously shown octahedral manganese oxide with 2x2 tunnel structure (OMS-2) to be a good hydrogenation catalyst and display high selectivity towards hydrogenation of C=C (80%
1
selectivity to hydrocinnamaldehyde at 96% conversion). In contrast to the previous results,
herein, we have tuned the hydrogenation of cinnamaldehyde to achieve selective reduction of C=O group, with 95% selectivity to cinnamyl alcohol at 99% conversion using octahedral layered manganese oxide (OL) under basic conditions. Reaction conditions have been optimized, including, choice of catalysts, reaction temperature, solvent system and the addition of additive to the reactor (NaOH, KOH). We have further extended the scope of layered manganese oxides to the hydrogenation of other substrates including ketoisophrone and citral.
Original languageEnglish
Publication statusPublished - 04 Jan 2017
EventUnited Kingdom Catalysis Conference 2017 - Loughborough, Loughborough, United Kingdom
Duration: 04 Jan 201706 Jan 2017

Conference

ConferenceUnited Kingdom Catalysis Conference 2017
Abbreviated titleUKCC 2017
CountryUnited Kingdom
CityLoughborough
Period04/01/201706/01/2017

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Ketones
Aldehydes
Hydrogenation
Metals
Catalysts
citral
Precious metals
Catalyst selectivity
manganese oxide
Tunnels
Substrates
Pharmaceutical Preparations
Costs
Industry

Cite this

Manyar, H. (2017). Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones. Abstract from United Kingdom Catalysis Conference 2017, Loughborough, United Kingdom.
Manyar, Haresh. / Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones. Abstract from United Kingdom Catalysis Conference 2017, Loughborough, United Kingdom.
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title = "Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones",
abstract = "Selective hydrogenation of α,β-unsaturated aldehydes and ketones is of great importance in the production of fine chemical and pharmaceutical industry. Noble metals such as Au, Pt, Re, Ru and Ir are often used as active catalyst sites in chemo-selective hydrogenations. However, considering the expensive cost and limited abundance of noble metals, it is of high interest to develop non-noble metal catalysts for chemo-selective hydrogenations. We have previously shown octahedral manganese oxide with 2x2 tunnel structure (OMS-2) to be a good hydrogenation catalyst and display high selectivity towards hydrogenation of C=C (80{\%}1selectivity to hydrocinnamaldehyde at 96{\%} conversion). In contrast to the previous results,herein, we have tuned the hydrogenation of cinnamaldehyde to achieve selective reduction of C=O group, with 95{\%} selectivity to cinnamyl alcohol at 99{\%} conversion using octahedral layered manganese oxide (OL) under basic conditions. Reaction conditions have been optimized, including, choice of catalysts, reaction temperature, solvent system and the addition of additive to the reactor (NaOH, KOH). We have further extended the scope of layered manganese oxides to the hydrogenation of other substrates including ketoisophrone and citral.",
author = "Haresh Manyar",
year = "2017",
month = "1",
day = "4",
language = "English",
note = "United Kingdom Catalysis Conference 2017, UKCC 2017 ; Conference date: 04-01-2017 Through 06-01-2017",

}

Manyar, H 2017, 'Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones', United Kingdom Catalysis Conference 2017, Loughborough, United Kingdom, 04/01/2017 - 06/01/2017.

Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones. / Manyar, Haresh.

2017. Abstract from United Kingdom Catalysis Conference 2017, Loughborough, United Kingdom.

Research output: Contribution to conferenceAbstract

TY - CONF

T1 - Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones

AU - Manyar, Haresh

PY - 2017/1/4

Y1 - 2017/1/4

N2 - Selective hydrogenation of α,β-unsaturated aldehydes and ketones is of great importance in the production of fine chemical and pharmaceutical industry. Noble metals such as Au, Pt, Re, Ru and Ir are often used as active catalyst sites in chemo-selective hydrogenations. However, considering the expensive cost and limited abundance of noble metals, it is of high interest to develop non-noble metal catalysts for chemo-selective hydrogenations. We have previously shown octahedral manganese oxide with 2x2 tunnel structure (OMS-2) to be a good hydrogenation catalyst and display high selectivity towards hydrogenation of C=C (80%1selectivity to hydrocinnamaldehyde at 96% conversion). In contrast to the previous results,herein, we have tuned the hydrogenation of cinnamaldehyde to achieve selective reduction of C=O group, with 95% selectivity to cinnamyl alcohol at 99% conversion using octahedral layered manganese oxide (OL) under basic conditions. Reaction conditions have been optimized, including, choice of catalysts, reaction temperature, solvent system and the addition of additive to the reactor (NaOH, KOH). We have further extended the scope of layered manganese oxides to the hydrogenation of other substrates including ketoisophrone and citral.

AB - Selective hydrogenation of α,β-unsaturated aldehydes and ketones is of great importance in the production of fine chemical and pharmaceutical industry. Noble metals such as Au, Pt, Re, Ru and Ir are often used as active catalyst sites in chemo-selective hydrogenations. However, considering the expensive cost and limited abundance of noble metals, it is of high interest to develop non-noble metal catalysts for chemo-selective hydrogenations. We have previously shown octahedral manganese oxide with 2x2 tunnel structure (OMS-2) to be a good hydrogenation catalyst and display high selectivity towards hydrogenation of C=C (80%1selectivity to hydrocinnamaldehyde at 96% conversion). In contrast to the previous results,herein, we have tuned the hydrogenation of cinnamaldehyde to achieve selective reduction of C=O group, with 95% selectivity to cinnamyl alcohol at 99% conversion using octahedral layered manganese oxide (OL) under basic conditions. Reaction conditions have been optimized, including, choice of catalysts, reaction temperature, solvent system and the addition of additive to the reactor (NaOH, KOH). We have further extended the scope of layered manganese oxides to the hydrogenation of other substrates including ketoisophrone and citral.

M3 - Abstract

ER -

Manyar H. Non-noble metal Manganese Oxide catalysts for the selective hydrogenation of α,β-unsaturated aldehydes and ketones. 2017. Abstract from United Kingdom Catalysis Conference 2017, Loughborough, United Kingdom.