Dehydration of (Perfluoroalkyl)tetramethylcyclopentenols

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F11%3A00369888" target="_blank" >RIV/67985858:_____/11:00369888 - isvavai.cz</a>

Alternative codes found

RIV/44555601:13440/11:43878443

Result on the web

<a href="http://dx.doi.org/10.3390/molecules16054031" target="_blank" >http://dx.doi.org/10.3390/molecules16054031</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/molecules16054031" target="_blank" >10.3390/molecules16054031</a>

Result language

angličtina

Original language name

Dehydration of (Perfluoroalkyl)tetramethylcyclopentenols

Original language description

Perfluoroalkyl tetramethylcyclopentenols (alkyl = n-butyl, n-hexyl, n-octyl) were dehydrated to a complex mixture of endo, endo-(perfluoroalkyl) tetramethyl-cyclopentadienes and their endo-, exo-isomers. It was found in preliminary screening experimentsthat the best reagent for this transformation, giving an 89% yield of isomeric product mixture, was P2O5 in benzene at 80-90 °C. Products were characterized on the basis of their mass spectra and retention time information, and some peaks in the mass spectra were identified from their molecular fragments. Structures were assigned to the three most abundant products of (perfluorohexyl)tetramethylcyclopentenol dehydration. Formal dehydration kinetics showed a second order reaction in benzene but zeroth order with induction period in chlorobenzene, suggesting mass transfer limitations in the more polar chlorobenzene. Some of the products were formed by consecutive isomerization of the others, as shown by the kinetic analysis.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CC - Organic chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2011

Confidentiality

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

Name of the periodical

Molecules

ISSN

1420-3049

e-ISSN

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Volume of the periodical

16

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

4031-4044

UT code for WoS article

000290955800041

EID of the result in the Scopus database

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