Thermal stability of N-heterocycle-stabilized iodanes – a systematic investigation
| Parent link: | Beilstein Journal of Organic Chemistry Vol. 15.— 2019.— [P. 2311-2318] |
|---|---|
| Coauteur: | |
| Andere auteurs: | , , , , |
| Samenvatting: | 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. |
| Taal: | Engels |
| Gepubliceerd in: |
2019
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| Onderwerpen: | |
| Online toegang: | https://doi.org/10.3762/bjoc.15.223 |
| Formaat: | Elektronisch Hoofdstuk |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660739 |
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| 200 | 1 | |a Thermal stability of N-heterocycle-stabilized iodanes – a systematic investigation |f A. Boelke [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 32 tit.] | ||
| 330 | |a 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. | ||
| 461 | |t Beilstein Journal of Organic Chemistry | ||
| 463 | |t Vol. 15 |v [P. 2311-2318] |d 2019 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a differential scanning calorimetry | |
| 610 | 1 | |a hypervalent iodine | |
| 610 | 1 | |a N-heterocycle | |
| 610 | 1 | |a stability | |
| 610 | 1 | |a thermogravimetry | |
| 610 | 1 | |a дифференциальная сканирующая калориметрия | |
| 610 | 1 | |a гипервалентный йод | |
| 610 | 1 | |a гетероциклы | |
| 610 | 1 | |a стабильность | |
| 610 | 1 | |a термогравиметрия | |
| 701 | 1 | |a Boelke |b A. |g Andreas | |
| 701 | 1 | |a Vlasenko |b Yu. A. |c chemist |c engineer of Tomsk Polytechnic University |f 1994- |g Yuliya Aleksandrovna |3 (RuTPU)RU\TPU\pers\43380 | |
| 701 | 1 | |a Yusubov |b M. S. |c chemist |c Professor of Tomsk Polytechnic University, Doctor of chemical sciences |f 1961- |g Mekhman Suleiman-Ogly (Suleimanovich) |3 (RuTPU)RU\TPU\pers\31833 | |
| 701 | 1 | |a Nachtsheim |b B. J. |g Boris | |
| 701 | 1 | |a Postnikov |b P. S. |c organic chemist |c Associate Professor of Tomsk Polytechnic University, Candidate of chemical sciences |f 1984- |g Pavel Sergeevich |3 (RuTPU)RU\TPU\pers\31287 |9 15465 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий (ИШХБМТ) |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
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| 856 | 4 | |u https://doi.org/10.3762/bjoc.15.223 | |
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