Regioselective H/D exchange at the side-chain of ethylbenzene on dealuminated zeolite H-Y studied by in situ MAS NMR-UV/Vis spectroscopy

Jun Huang; Yijiao Jiang; V. R Reddy Marthala; Yean Sang Ooi; Michael Hunger

doi:10.1002/cphc.200800065

Regioselective H/D exchange at the side-chain of ethylbenzene on dealuminated zeolite H-Y studied by in situ MAS NMR-UV/Vis spectroscopy

Jun Huang, Yijiao Jiang, V. R Reddy Marthala, Yean Sang Ooi, Michael Hunger^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

(Chemical Equation Presented) Regioselective H/D exchange at the side-chain methyl group of ethylbenzene on dealuminated zeolite H-Y and formation of carbenium ions are observed for the first time by the novel in situ pulsed-flow ¹H MAS NMR-UV/Vis technique. Hydride abstraction on Lewis acid sites lead to the formation carbenium ions which are protonated following Markovnikov's rule (see scheme).

Original language	English
Pages (from-to)	1107-1109
Number of pages	3
Journal	ChemPhysChem
Volume	9
Issue number	8
DOIs	https://doi.org/10.1002/cphc.200800065
Publication status	Published - 2 Jun 2008
Externally published	Yes

Keywords

Ethylbenzene
H/D exchange
Heterogeneous catalysis
Regioselectivity
Zeolites

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10.1002/cphc.200800065

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title = "Regioselective H/D exchange at the side-chain of ethylbenzene on dealuminated zeolite H-Y studied by in situ MAS NMR-UV/Vis spectroscopy",

abstract = "(Chemical Equation Presented) Regioselective H/D exchange at the side-chain methyl group of ethylbenzene on dealuminated zeolite H-Y and formation of carbenium ions are observed for the first time by the novel in situ pulsed-flow 1H MAS NMR-UV/Vis technique. Hydride abstraction on Lewis acid sites lead to the formation carbenium ions which are protonated following Markovnikov's rule (see scheme).",

keywords = "Ethylbenzene, H/D exchange, Heterogeneous catalysis, Regioselectivity, Zeolites",

author = "Jun Huang and Yijiao Jiang and Marthala, {V. R Reddy} and Ooi, {Yean Sang} and Michael Hunger",

year = "2008",

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doi = "10.1002/cphc.200800065",

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volume = "9",

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AU - Huang, Jun

AU - Jiang, Yijiao

AU - Marthala, V. R Reddy

AU - Ooi, Yean Sang

AU - Hunger, Michael

PY - 2008/6/2

Y1 - 2008/6/2

N2 - (Chemical Equation Presented) Regioselective H/D exchange at the side-chain methyl group of ethylbenzene on dealuminated zeolite H-Y and formation of carbenium ions are observed for the first time by the novel in situ pulsed-flow 1H MAS NMR-UV/Vis technique. Hydride abstraction on Lewis acid sites lead to the formation carbenium ions which are protonated following Markovnikov's rule (see scheme).

AB - (Chemical Equation Presented) Regioselective H/D exchange at the side-chain methyl group of ethylbenzene on dealuminated zeolite H-Y and formation of carbenium ions are observed for the first time by the novel in situ pulsed-flow 1H MAS NMR-UV/Vis technique. Hydride abstraction on Lewis acid sites lead to the formation carbenium ions which are protonated following Markovnikov's rule (see scheme).

KW - Ethylbenzene

KW - H/D exchange

KW - Heterogeneous catalysis

KW - Regioselectivity

KW - Zeolites

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ER -

Regioselective H/D exchange at the side-chain of ethylbenzene on dealuminated zeolite H-Y studied by in situ MAS NMR-UV/Vis spectroscopy

Abstract

Keywords

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