Please use this identifier to cite or link to this item: https://doi.org/10.1021/cs200299v
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dc.titlePotassium phosphate as a solid base catalyst for the catalytic transfer hydrogenation of aldehydes and ketones
dc.contributor.authorRadhakrishan, R.
dc.contributor.authorDo, D.M.
dc.contributor.authorJaenicke, S.
dc.contributor.authorSasson, Y.
dc.contributor.authorChuah, G.-K.
dc.date.accessioned2014-10-16T08:37:48Z
dc.date.available2014-10-16T08:37:48Z
dc.date.issued2011-11-04
dc.identifier.citationRadhakrishan, R., Do, D.M., Jaenicke, S., Sasson, Y., Chuah, G.-K. (2011-11-04). Potassium phosphate as a solid base catalyst for the catalytic transfer hydrogenation of aldehydes and ketones. ACS Catalysis 1 (11) : 1631-1636. ScholarBank@NUS Repository. https://doi.org/10.1021/cs200299v
dc.identifier.issn21555435
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/94588
dc.description.abstractPotassium triphosphate is a surprisingly active catalyst for the catalytic transfer hydrogenation of carbonyl compounds. A pretreatment at 600 °C is critical to obtain the active material. Temperature programmed desorption of CO2 indicates that sites of lower basicity were created after heat treatment for 5 h as compared to 1 h. With 2-propanol as hydride source, aromatic aldehydes were reduced to the corresponding alcohols with high rates. The presence of electron withdrawing chloro- and nitro-substituents at the benzene ring increases the rate of reaction compared with unsubstituted benzaldehyde, while electron donating methyl or 2-propyl groups has the opposite effect. Ketones were reduced with a lower rate of reaction than aldehydes. The role of K3PO4 as a heterogeneous catalyst is indicated by a complete lack of reaction in the absence of the solid base and by studies with competing substrates. The latter studies suggest that the catalytic transfer hydrogenation of benzaldehyde and chlorinated benzaldehydes takes place at different surface sites. © 2011 American Chemical Society.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/cs200299v
dc.sourceScopus
dc.subjectaldehydes
dc.subjectcatalytic transfer hydrogenation
dc.subjectheterogeneous base
dc.subjectK3PO4
dc.subjectketones
dc.subjectsite differentiation
dc.subjectsolid base
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1021/cs200299v
dc.description.sourcetitleACS Catalysis
dc.description.volume1
dc.description.issue11
dc.description.page1631-1636
dc.identifier.isiut000296598000021
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