Thermal stability of N-heterocycle-stabilized iodanes – a systematic investigation; Beilstein Journal of Organic Chemistry; Vol. 15

Thermal stability of N-heterocycle-stabilized iodanes – a systematic investigation; Beilstein Journal of Organic Chemistry; Vol. 15

Bibliographic Details
Parent link:	Beilstein Journal of Organic Chemistry Vol. 15.— 2019.— [P. 2311-2318]
Corporate Author:	Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий (ИШХБМТ)
Other Authors:	Boelke A. Andreas, Vlasenko Yu. A. Yuliya Aleksandrovna, Yusubov M. S. Mekhman Suleiman-Ogly (Suleimanovich), Nachtsheim B. J. Boris, Postnikov P. S. Pavel Sergeevich
Summary:	Title screen The thermal stability of pseudocyclic and cyclic N-heterocycle-stabilized (hydroxy)aryl- and mesityl(aryl)-λ3-iodanes (NHIs) through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) is investigated. Peak decomposition temperatures (Tpeak) were observed within a wide range between 120 and 270 °C. Decomposition enthalpies (ΔHdec) varied from −29.81 to 141.13 kJ/mol. A direct comparison between pseudocyclic and cyclic NHIs revealed high Tpeak but also higher ΔHdec values for the latter ones. NHIs bearing N-heterocycles with a high N/C-ratio such as triazoles show among the lowest Tpeak and the highest ΔHdec values. A comparison of NHIs with known (pseudo)cyclic benziodoxolones is made and we further correlated their thermal stability with reactivity in a model oxygenation.
Language:	English
Published:	2019
Subjects:	электронный ресурс труды учёных ТПУ differential scanning calorimetry hypervalent iodine N-heterocycle stability thermogravimetry дифференциальная сканирующая калориметрия гипервалентный йод гетероциклы стабильность термогравиметрия
Online Access:	https://doi.org/10.3762/bjoc.15.223
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660739

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