对硝基甲苯在多硫化钠溶液中氧化还原机理的质谱研究

doi:10.3321/j.issn:0251-0790.2005.08.019

CORC > 北京大学 > 化学与分子工程学院

	对硝基甲苯在多硫化钠溶液中氧化还原机理的质谱研究; A Mass Spectroscopic Investigation to Redox Mechanism of p-Nitrotoluene in Sodium Polysulfide Solution
	高坡 ; 乐征宇 ; 陈念陔 ; 唐恢同
刊名	高等学校化学学报
	2005
关键词	中间体质谱机理氧化还原对硝基甲苯 intermediate mass spectrum mechanism redox p-aminobenzaldehyd
DOI	10.3321/j.issn:0251-0790.2005.08.019
英文摘要	采用高分辨质谱仪跟踪监测对硝基甲苯在多硫化钠存在下于乙醇-碱性水溶液中生成对氨基苯甲醛过程中反应中间体的变化及转变规律.结果显示,在80 ℃时反应进行到120 min之内,有数种分子量较大的缩合中间体生成,表明对氨基苯甲醛可能是经类席夫碱的多聚体水解生成的.同时,对席夫碱多聚体的形成提出了与文献不同的机理.; The reaction of p-nitrotoluene in the ethanol/sodium polysulfide solution resulting in p-aminobenzaldehyde has been applied to industry. However the reaction mechanism is not accepted commonly since the accordant conclusion among the proposed mechanisms was not reached due to lacking of the verification mutually. In this paper, we monitored the reaction intermediates and their transition regularity by high resolution mass spectra. The results show that the condensation compounds emerged during the reaction at 80 degrees C with the reaction starting up to 120 min, strongly supporting the condensation and oxidation mechanisms proposed by Shchukina and Chen, respectively, that is, p-aminobenzaldehyde is derived from the hydrolysis of poly Schiff base. Meanwhile, we propose the possibility of formation process of poly Schiff base, which is different from that reported in literatures.; 国家自然科学基金; 黑龙江省自然科学基金; 黑龙江大学校科研和教改项目; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000231321400024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 2; 8; 1480-1483; 26
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/257675]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	高坡,乐征宇,陈念陔,等. 对硝基甲苯在多硫化钠溶液中氧化还原机理的质谱研究, A Mass Spectroscopic Investigation to Redox Mechanism of p-Nitrotoluene in Sodium Polysulfide Solution[J]. 高等学校化学学报,2005.
APA	高坡,乐征宇,陈念陔,&唐恢同.(2005).对硝基甲苯在多硫化钠溶液中氧化还原机理的质谱研究.高等学校化学学报.
MLA	高坡,et al."对硝基甲苯在多硫化钠溶液中氧化还原机理的质谱研究".高等学校化学学报 (2005).