Organic reactivity of alcohols in superheated aqueous salt solutions: an overview
作者:Sabine Avola、Frédéric Goettmann、Markus Antonietti、Werner Kunz
DOI:10.1039/c2nj21038j
日期:——
The low dielectric constant and high self-dissociation constant of water in a temperature range between 150 and 250 °C make it a very appealing solvent for synthesis. Surprisingly, while organic chemistry in water at low temperature or around its critical point has been investigated in detail, very little seems to be known about the behaviour of organic molecules under hydrothermal conditions. The present work thus aims at shading some light on this field. As a start, we decided to investigate the reactions in which alcohols can undergo in water in the above-mentioned temperature range. Knowing that very strong salt effects on organic reactions have already been observed in super critical water, the impact of salt on the outcome of our tests was also investigated in detail.
在150至250°C的温度范围内,水具有低介电常数和高自解离常数,这使其成为合成中非常吸引人的溶剂。令人惊讶的是,尽管水中有机化学在低温或其临界点附近已得到详细研究,但对于有机分子在水热条件下的行为,我们所知似乎非常有限。因此,本研究旨在为这一领域带来一些新的见解。作为起点,我们决定探讨在此温度范围内酒精在水中的反应。已知超临界水中的强盐效应对有机反应有显著影响,因此我们还详细研究了盐对测试结果的影响。