Ultrasound assisted Bradsher reaction in aqueous and non-aqueous media: First use of ultrasounds in electrophilic aromatic cyclisation leading to polyacenes
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- 作者：Emilia Kowalskaa ; kowalska@cbmm.lodz.pl" class="auth_mail" title="E-mail the corresponding author ; Piotr Bałczewskia ; b ; pbalczew@cbmm.lodz.pl" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bradsher reaction ; Friedel-Crafts reaction ; Electrophilic aromatic substitution ; Cyclisation ; Ultrasounds ; Polyacenes
- 刊名：Ultrasonics Sonochemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：34
- 期：Complete
- 页码：743-753
- 全文大小：4013 K
文摘
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The first use of ultrasounds in the Bradsher reaction.
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The first SEAr sonocyclisation leading to polyacenes with 3 and 4 fused rings.
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Milder conditions and much shorter reaction times than in conventional protocols.
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The possibility of using aqueous and non-aqueous media with same high efficiency.
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Access to polyacenes from activated and non-activated substrates in high yields.