Mild and efficient capture and functionalisation of CO2 using silver(i) oxide and application to 13C-labelled dialkyl carbonates
作者:Gemma A. Tunbridge、Riccardo Baruchello、Lorenzo Caggiano
DOI:10.1039/c3ra23281f
日期:——
A high yielding three-component reaction between β-iodo ethylamine derivatives, MeOH and gaseous CO2 at ambient temperatures and pressures is reported using silver(I) oxide. Unfunctionalised alkyl iodides were also found to be effective in this transformation and their optimisation is also described. To highlight the ease and control with which gaseous CO2 can be captured and functionalised under mild conditions, the reaction was performed using 13C-enriched CO2 to afford specifically 13C-carbonyl-labelled dialkyl carbonates with exquisite control of the isotopic purity in good yields and without the need for specialised equipment.
报道了一种高产率的三组分反应,涉及β-碘乙胺衍生物、甲醇和在常温常压下的气态二氧化碳,使用氧化银(I)作为催化剂。未官能化的烷基碘化物也被发现在此转化中有效,并且也描述了它们的优化。为了突出在温和条件下捕获和官能化气态二氧化碳的简便性和控制性,该反应采用13C标记的二氧化碳进行,从而在无需特殊设备的情况下,以良好产率和精细控制的同位素纯度得到特异的13C-羰基标记的二烷基碳酸酯。