التفاصيل البيبلوغرافية
| العنوان: |
Activation of an alkyne: the preparation, structure, and reactivity of an acetylenic amidinium ion derived from an N-heterocyclic carbene. |
| المؤلفون: |
Laprade, Matthew J.J., Robertson, Katherine N., Clyburne, Jason A.C. jason.clyburne@smu.ca |
| المصدر: |
Canadian Journal of Chemistry. Dec2023, Vol. 101 Issue 12, p909-921. 13p. |
| مصطلحات موضوعية: |
*X-ray crystallography, *SODIUM azide, *IONS, *BROMIDES |
| مستخلص: |
(Bromoethynyl)benzene dissolved in hexane reacts with 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene (IMes) to produce the acetylenic amidinium salt [Ph-C≡C-IMes][Br]. Treatment of the bromide salt with KPF6 then results in the isolation of solid [Ph-C≡C-IMes][PF6]. Both salts have been characterized spectroscopically and their structures determined using X-ray crystallography. Crystals of a hydrolysis product were also isolated from this reaction on one occasion and its structure is reported. This led us to explore the reactivity of the bromide salt further. It was found to react rapidly with sodium azide (NaN3), azidotrimethylsilane ((CH3)3Si-N3), cyanotrimethylsilane ((CH3)3Si-CN), and also with IMes. All of the addition products have been characterized using X-ray crystallography. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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