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首页> 外文期刊>Catalysis science & technology >A mechanistic investigation of the Suzuki polycondensation reaction using MS/MS methods
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A mechanistic investigation of the Suzuki polycondensation reaction using MS/MS methods

机译：铃木的机械的调查使用MS / MS方法缩聚反应

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摘要

Understanding catalytic reactions is inherently difficult because not only is the catalyst the least abundant component in the mixture, but it also takes many different forms as the reaction proceeds. Precatalyst is converted into active catalyst, short-lived intermediates, resting states, and decomposition products. Polymerization catalysis is harder yet to study, because as the polymer grows the identities of these species change with every turnover as monomers are added to the chain. Modern mass spectrometric methods have proved to be up to the challenge, with multiple reaction monitoring (MRM) in conjunction with pressurized sample infusion (PSI) used to continuously probe all stages of the Suzuki polycondensation (SPC) reaction. Initiation, propagation, and termination steps were tracked in real time, as well as the side products from undesirable aryl-phosphine scrambling. The outstanding sensitivity and low signal-to-noise of the approach has real promise with respect to the depth with which this reaction and others like it can be studied.
机译：了解催化反应本质上是困难的,因为不仅是催化剂混合物中最丰富的组件,但是它也有许多不同的形式的反应收益。催化剂,短暂的中间体,休息州,和分解产品。聚合催化还努力学习,因为随着聚合物的身份这些物种改变与每一个营业额单体添加到链。光谱测定方法已被证明是到挑战,与多个反应监测(MRM)结合加压样本输液(PSI)用于连续探测阶段的铃木缩聚(SPC)的反应。终止的步骤在实时跟踪,的产品不受欢迎的aryl-phosphine匆忙。灵敏度和低的信噪比方法有真正的承诺这个反应深度,和其他人喜欢它可以研究。

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