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Unexpected Behaviour of Monospirothiacalix[4]arene under Acidic Conditions
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SYSNO ASEP 0333842 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Unexpected Behaviour of Monospirothiacalix[4]arene under Acidic Conditions Title Neočekávané chování monospirothiacalix[4]arenu v kyselém prostředí Author(s) Polívková, K. (CZ)
Šimánová, M. (CZ)
Budka, J. (CZ)
Cuřínová, Petra (UCHP-M) RID, SAI, ORCID
Císařová, I. (CZ)
Lhoták, P. (CZ)Source Title Tetrahedron Letters. - : Elsevier - ISSN 0040-4039
Roč. 50, č. 46 (2009), s. 6347-6350Number of pages 4 s. Language eng - English Country GB - United Kingdom Keywords spirodienone route ; derivatives ; functionalization Subject RIV CC - Organic Chemistry R&D Projects GA203/09/0691 GA ČR - Czech Science Foundation (CSF) IAAX08240901 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000271055100034 DOI 10.1016/j.tetlet.2009.08.105 Annotation Treatment of the monospirodienone derivative of thiacalix[4]arene with various acidic agents (HCl and HBr) results in rearrangement of the thiacalixarene skeleton leading to the formation of a phenoxanthiin derivative in high yields (up to 80%). The structure of the unexpected product is confirmed using1H and 13C NMR spectroscopy, and X-ray crystallography. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2010
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