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Aldol condensation of benzaldehyde and heptanal: a comparative study of laboratory and industrially prepared Mg-Al mixed oxides

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916130" target="_blank" >RIV/60461373:22310/18:43916130 - isvavai.cz</a>

  • Alternative codes found

    RIV/60461373:22810/18:43916130

  • Result on the web

    <a href="https://onlinelibrary.wiley.com/doi/pdf/10.1002/jctb.5336" target="_blank" >https://onlinelibrary.wiley.com/doi/pdf/10.1002/jctb.5336</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/jctb.5336" target="_blank" >10.1002/jctb.5336</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Aldol condensation of benzaldehyde and heptanal: a comparative study of laboratory and industrially prepared Mg-Al mixed oxides

  • Original language description

    Several layered double hydroxides (with Mg:Al ratio varying from 2:1 to 4:1) were prepd. by a co-pptn. method at const. pH value. The activity of lab. prepd. samples was compared with that of industrially prepd. layered double hydroxides with the same Mg/Al ratio in aldol condensation of benzaldehyde with heptanal. Characterization of all solid catalysts was performed using different techniques (ICP-MS, thermogravimetry, X-ray diffraction, DRIFT spectroscopy, nitrogen physisorption method, SEM). Acid-base properties of prepd. materials were investigated using ammonia (carbon dioxide, resp.) temp. programmed desorption. Heptanal conversion and selectivity to two main products, i.e., 2-pentylcinnamylaldehyde (jasmine aldehyde) and 2-pentylnon-2-enal, were monitored. All catalysts resulted in heptanal conversions higher than 95%. The highest selectivity to jasmine aldehyde (66% at 70% heptanal conversion, 46% theor. yield) was obtained using ESM 3:1 catalyst (100°, heptanal:benzaldehyde = 1:2 M, solvent-free synthesis).

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10401 - Organic chemistry

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Chemical Technology and Biotechnology

  • ISSN

    0268-2575

  • e-ISSN

  • Volume of the periodical

    93

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    166-173

  • UT code for WoS article

    000417508100021

  • EID of the result in the Scopus database

    2-s2.0-85021347482