Although carbon monoxide (CO) is considered a practical source of the carbonyl functionality in various compounds, handling CO gas is difficult. The phase-vanishing (PV) method, using highly fluorinated solvents as the phase screen, was thus employed, in which CO was evolved for use in organic synthesis. An H-shaped reactor bearing two reaction chambers was employed. In the first chamber, CO was efficiently generated from sulfuric acid and ammonium formate under the PV conditions, and then consumed in the second chamber in a range of palladium-catalysed carbonylation reactions, affording the desired products. Use of this PV system allowed for easy and safe generation of hazardous CO gas, and its use thereof in organic synthesis.

尽管一氧化碳（CO）被认为是各种化合物中羰基官能度的实用来源，但处理CO气体却很困难。因此，采用了使用高度氟化的溶剂作为相筛的消失相（PV）方法，其中析出了CO以用于有机合成。使用带有两个反应室的H形反应器。在第一个反应室中，在PV条件下由硫酸和甲酸铵有效地产生了CO，然后在第二个反应室中以钯催化的羰基化反应消耗了CO，得到了所需的产物。使用该光伏系统可轻松安全地生成有害的CO气体，并将其用于有机合成中。