synthesis of [2′-(n-ethylamino)-5′-alkyl]phenyl-5,6,7,8-tetrahydroacridine-9-carboxy-2-sulfone derivatives by the proton-catalyzed rearrangement of corresponding sulfonamides英文论文.pdfVIP

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synthesis of [2′-(n-ethylamino)-5′-alkyl]phenyl-5,6,7,8-tetrahydroacridine-9-carboxy-2-sulfone derivatives by the proton-catalyzed rearrangement of corresponding sulfonamides英文论文.pdf

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synthesis of [2′-(n-ethylamino)-5′-alkyl]phenyl-5,6,7,8-tetrahydroacridine-9-carboxy-2-sulfone derivatives by the proton-catalyzed rearrangement of corresponding sulfonamides英文论文

Hindawi Publishing Corporation Organic Chemistry International Volume 2011, Article ID 614627, 5 pages doi:10.1155/2011/614627 Research Article Synthesis of [2 -(N-Ethylamino)-5 -Alkyl]phenyl-5,6,7,8- Tetrahydroacridine-9-Carboxy-2-Sulfone Derivatives by the Proton-Catalyzed Rearrangement of Corresponding Sulfonamides Anamika Sharma, Sonika Jain, Reenu Sirohi, and D. Kishore Department of Chemistry, Banasthali University, Banasthali, Rajasthan 304022, India Correspondence should be addressed to Sonika Jain, sonikajain85@ Received 5 October 2011; Accepted 14 December 2011 Academic Editor: Ken Shimizu Copyright © 2011 Anamika Sharma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Synthesis of a new series of heteroaryl sulfones 6(a–f) in which the heteroaryl part is represented by acridine derivatives has been developed and reported here. The key step of this transformation involves the proton-catalyzed rearrangement of the sulphonamide derivatives 5(a–f) to the corresponding sulfones 6(a–f). 1. Introduction a synthetic tool for the preparation of several new heteroaryl sulfones. Chemotherapeutic importance of the sulfonamides, sul- Present paper describes its application to the synthe- fones, and aminosulfones is well known in plethora of sis of [2 -(N-ethylamino)-5 -alkyl]phenyl