本文選題：磷卡賓陽離子 + 分子-離子反應(yīng)　； 參考：《中國科學(xué):化學(xué)》2017年12期

【摘要】：本文提供了一種氣相制備二苯基磷卡賓陽離子的方法,并通過其分子-離子反應(yīng)對(duì)有機(jī)小分子進(jìn)行了檢測.通過二級(jí)質(zhì)譜從母離子二苯基甲基正離子的碎裂中得到了活性較高的二苯基磷卡賓陽離子,并選用了乙腈、甲酸、丙烯腈、二氯甲烷、乙酸乙酯、正丁醇、叔丁醇、三乙胺、苯和苯乙烯共10種試劑作為分子試劑分別與二苯基磷卡賓陽離子進(jìn)行反應(yīng).實(shí)現(xiàn)了對(duì)這10種分子試劑的定性檢測,及對(duì)正丁醇和叔丁醇這對(duì)同分異構(gòu)體的區(qū)分.通過固定反應(yīng)時(shí)間,調(diào)節(jié)分子試劑的流量來實(shí)現(xiàn)對(duì)有機(jī)小分子的定量檢測.該方法簡便易行,對(duì)于研究磷卡賓陽離子的氣相性質(zhì)以及解釋其參與的反應(yīng)機(jī)理也有一定的幫助.
[Abstract]:In this paper, a gas phase method for the preparation of diphenyl phosphate carbene cations was developed, and its molecular ion reaction was used to detect small organic molecules. Diphenyl phosphate carbene cations with high activity were obtained from the fragmentation of diphenyl methyl cations by secondary mass spectrometry. Acetonitrile, formic acid, acrylonitrile, dichloromethane, ethyl acetate, n-butanol, tert-butanol, triethylamine were selected. Benzene and styrene were used as molecular reagents to react with diphenyl phosphate carbene cations. The qualitative detection of these 10 reagents and the distinction between n-butanol and tert-butanol as isomers were realized. The quantitative detection of small organic molecules was achieved by fixing reaction time and adjusting the flow rate of molecular reagents. The method is simple and convenient, and it is helpful to study the gas phase properties of phosphorus carbene cations and explain the reaction mechanism in which they are involved.
【作者單位】： 浙江大學(xué)化學(xué)系;
【基金】：國家自然科學(xué)基金(編號(hào):21327010,21372199)資助項(xiàng)目
【分類號(hào)】：O621.13;O657.63
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本文編號(hào)：1854701