Sulfuric acid-catalyzed conversion of alkynes to ketones in an ionic liquid medium under mild reaction conditions

Wing Leung Wong; Kam Piu Ho; Yoon Suk Lee; Kin Ming Lam; Zhong Yuan Zhou; Tak Hang Chan; Kwok Yin Wong

doi:10.1021/cs100016h

Sulfuric acid-catalyzed conversion of alkynes to ketones in an ionic liquid medium under mild reaction conditions

Wing Leung Wong, Kam Piu Ho, Yoon Suk Lee, Kin Ming Lam, Zhong Yuan Zhou, Tak Hang Chan, Kwok Yin Wong

Research output: Journal article publication › Journal article › Academic research › peer-review

46 Citations (Scopus)

Abstract

An efficient and recyclable ionic liquid system containing a small amount of sulfuric acid as the catalyst (0.5-8.0 mol equiv to substrate) has been successfully developed for hydration of various alkynes under mild reaction conditions (40 °C, 0.5 h) to give high yields of ketones (88-100%) as products. The system does not involve heavy metal catalysts or concentrated acids and is simple and easy to prepare and exhibits excellent catalytic activity and isolated yield toward the hydration of alkynes to ketones. The efficiency of the system is attributed to the high chemical activity of protons in the ionic liquid medium.

Original language	English
Pages (from-to)	116-119
Number of pages	4
Journal	ACS Catalysis
Volume	1
Issue number	2
DOIs	https://doi.org/10.1021/cs100016h
Publication status	Published - 4 Feb 2011

Keywords

alkynes
homogeneous catalysis
hydration
Ionic liquids
ketones

ASJC Scopus subject areas

Catalysis

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10.1021/cs100016h

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abstract = "An efficient and recyclable ionic liquid system containing a small amount of sulfuric acid as the catalyst (0.5-8.0 mol equiv to substrate) has been successfully developed for hydration of various alkynes under mild reaction conditions (40 °C, 0.5 h) to give high yields of ketones (88-100%) as products. The system does not involve heavy metal catalysts or concentrated acids and is simple and easy to prepare and exhibits excellent catalytic activity and isolated yield toward the hydration of alkynes to ketones. The efficiency of the system is attributed to the high chemical activity of protons in the ionic liquid medium.",

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AU - Wong, Wing Leung

AU - Ho, Kam Piu

AU - Lee, Yoon Suk

AU - Lam, Kin Ming

AU - Zhou, Zhong Yuan

AU - Chan, Tak Hang

AU - Wong, Kwok Yin

PY - 2011/2/4

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AB - An efficient and recyclable ionic liquid system containing a small amount of sulfuric acid as the catalyst (0.5-8.0 mol equiv to substrate) has been successfully developed for hydration of various alkynes under mild reaction conditions (40 °C, 0.5 h) to give high yields of ketones (88-100%) as products. The system does not involve heavy metal catalysts or concentrated acids and is simple and easy to prepare and exhibits excellent catalytic activity and isolated yield toward the hydration of alkynes to ketones. The efficiency of the system is attributed to the high chemical activity of protons in the ionic liquid medium.

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KW - homogeneous catalysis

KW - hydration

KW - Ionic liquids

KW - ketones

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Sulfuric acid-catalyzed conversion of alkynes to ketones in an ionic liquid medium under mild reaction conditions

Abstract

Keywords

ASJC Scopus subject areas

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