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  • Title: An eco-friendly N-sulfonylation of amines using stable and reusable Zn-Al-hydrotalcite solid base catalyst under ultrasound irradiation.
    Author: Mokhtar M, Saleh TS, Ahmed NS, Al-Thabaiti SA, Al-Shareef RA.
    Journal: Ultrason Sonochem; 2011 Jan; 18(1):172-6. PubMed ID: 20627793.
    Abstract:
    Synthetic nanosized Zn-Al-hydrotalcite (Zn-Al-HT) with 20 nm crystallite size and 61 m(2)/g BET-surface area is found to be a mild and efficient catalyst for N-sulfonylation of amines in quantitative yields under ultrasound irradiation. Exclusive synthesis of sulfonamides, using Zn-Al-HT, under ultrasound irradiation, was realized by compatible basic sites of catalyst used. The products were isolated after simple work-up in high yields and purity.
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