13C Solid State NMR Evidence for the Existence of Isobutyl Carbenium Ion in the Reaction of Isobutyl Alcohol Dehydration in H-ZSM-5 Zeolite Full article
Journal |
Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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Output data | Year: 1993, Volume: 19, Number: 2-3, Pages: 153-158 Pages count : 6 DOI: 10.1007/BF00771750 | ||
Tags | 2D J-resolved13C solid state NMR, carbon scrambling, dehydration of isobutyl alcohol, H-ZSM-5 zeolite, Isobutyl carbenium ion | ||
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Abstract:
Using two-dimensional J-resolved and CP/MAS 13C NMR, the pathway for the transfer of the 13C label from the CH2 group of isobutyl alcohol into the hydrocarbon skeleton of butene oligomers has been elucidated in the course of isobutyl alcohol dehydration inside H-ZSM-5 zeolite. First, the label is transferred selectively into the CH2 group of the isobutyl silyl ether reaction intermediate (IBSE), and then into the CH and CH3 groups of the isobutyl fragment (-CH2CH(CH3)2) of IBSE and/or butene oligomers. Finally, it is scrambled over the carbon skeleton of the oligomers. The obtained data suggest that isobutyl carbenium ion is formed as a reaction intermediate or transition state during the transformation of isobutyl silyl ether into butene oligomers.
Cite:
Stepanov A.G.
, Zamaraev K.I.
13C Solid State NMR Evidence for the Existence of Isobutyl Carbenium Ion in the Reaction of Isobutyl Alcohol Dehydration in H-ZSM-5 Zeolite
Catalysis Letters. 1993. V.19. N2-3. P.153-158. DOI: 10.1007/BF00771750 WOS Scopus РИНЦ
13C Solid State NMR Evidence for the Existence of Isobutyl Carbenium Ion in the Reaction of Isobutyl Alcohol Dehydration in H-ZSM-5 Zeolite
Catalysis Letters. 1993. V.19. N2-3. P.153-158. DOI: 10.1007/BF00771750 WOS Scopus РИНЦ
Dates:
Submitted: | Feb 19, 1993 |
Accepted: | Mar 12, 1993 |
Published print: | Jun 1, 1993 |
Identifiers:
Web of science | WOS:A1993LG90000006 |
Scopus | 2-s2.0-0000800488 |
Elibrary | 30843743 |
Chemical Abstracts | 1993:670294 |
Chemical Abstracts (print) | 119:270294 |
OpenAlex | W2074978953 |