کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4914579 1362626 2018 7 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Phosphonium salts derived from α-ferrocenylvinyl cation in situ generated in sc-CO2 from ethynylferrocene by Nafion film
کلمات کلیدی
Supercritical carbon dioxide; Nafion film; Alkynes protonation; Carbenium ions; Phosphonium ions; Phosphinyl phosphonium ions;
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Phosphonium salts derived from α-ferrocenylvinyl cation in situ generated in sc-CO2 from ethynylferrocene by Nafion film
چکیده انگلیسی

•Protonation of ethynylferrocene with Nafion film in sc-CO2.•Preparations of phosphonium salts from ferrocenylvinyl cation and phosphines.•(Ferrocenylvinyl)phosphonium salts: “green” and mild preparation.•A convenient method for generation and trapping of labile carbocations.

A protonation of ethynylferrocene by nafion in sc-CO2 in the presence of triphenylphosphine (PPh3) or 1,2-bis(diphenylphosphino)ethane (DPPE) leads to a formation of novel (1-ferrocenylvinyl)phosphonium or ferrocenyl substituted bisphosphonium salt isolated as tetrafluoroborates 3 and 4, respectively. Ferrocenyl substituted bisphosphonium tetrafluoroborate 4 undergoes the hydrolytic cleavage of the P+-C(Fc) bond in the presence of Al2O3 at 25 °C to form ferrocenyl substituted phosphinyl phosphonium tetrafluoroborate 5. Complexes 3–5 were completely characterized by NMR spectra and their molecular structures elucidated by X-ray studies.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 131, January 2018, Pages 117-123
نویسندگان
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