Efficient regioselective functionalizations of cyclodextrins carried out under microwaves or power ultrasound期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Efficient regioselective functionalizations of cyclodextrins carried out under microwaves or power ultrasound

Authors:	Katia Martina Francesco Trotta Bruna Robaldo Nikka Belliardi Lszl Jicsinszky Giancarlo Cravotto

Institution:	^aDipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Giuria 9, 10125 Torino, Italy ^bDipartimento di Chimica IFM, Università di Torino, Via Giuria 7, 10125 Torino, Italy ^cCyclolab R&D Laboratory, Illatos út 7, H-1097 Budapest, Hungary

Abstract:	Regioselective syntheses of differently functionalized cyclodextrins (CDs) were efficiently carried out under ultrasound or microwave irradiation. 6^I-Deoxy-6^I-thio-β-CD, 6^I-deoxy-6^I-formyl-β-CD, and 6^A,6^D-dideoxy-6^A,6^D-dithio-β-CD were prepared under microwave irradiation. A new rapid and efficient ultrasound-assisted protocol is described for the synthesis of 3^I-azido-3^I-deoxy-, -β, and -γ-CD by selective tosylation followed by azide substitution.

Keywords:	Cyclodextrin Ultrasound-assisted synthesis Microwave-assisted synthesis Regioselectivity
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