Tolanophane Revisited – Resolution and Racemization Mechanism of a Twisted Chiral Aromatic Compound
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説明
<jats:title>Abstract</jats:title><jats:p>Enantiomers of tolanophane consisting of two tolane units were resolved by chiral HPLC, contrary to the previous attempts by Staab et al. Racemization took place rapidly at room temperature, and the barrier to enantiomerization was determined to be 93.2 kJ mol<jats:sup>–1</jats:sup> at 283 K. This energy barrier was rationally deduced with a mechanism involving rotations about the single and triple bond axes, as revealed by DFT calculations. A tetrahedrane intermediate resulting from a transannular reaction between the two adjacent triple bonds was ruled out.</jats:p>
収録刊行物
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- European Journal of Organic Chemistry
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European Journal of Organic Chemistry 2012 (29), 5679-5684, 2012-08-03
Wiley
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詳細情報 詳細情報について
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- CRID
- 1360567180054978432
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- ISSN
- 10990690
- 1434193X
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- 資料種別
- journal article
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- データソース種別
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- KAKEN
- OpenAIRE