已开发了一种S N Ar模型反应,该反应给出了一系列取代的二芳基醚,可与可溶性有机碱DBU代替不溶的碳酸钾一起发挥作用。然后,通过在自动停止流微波反应器中按比例放大生产这些二芳基醚,以实现每天> 0.5 kg的生产率。在该反应器中也已扩大了类似的反应伙伴,以扩大研究范围。还对放大的间歇式微波反应器进行了简要比较。最后,据报道,该小型微波停止流反应器连续处理24小时,启动后无需人工干预。
Herbicidal fluorophenoxyphenoxyalkanoic acids and derivatives thereof
申请人:DOWELANCO
公开号:EP0302203A1
公开(公告)日:1989-02-08
Novel 2-(4-(2′-fluoro-4′-cyanophenoxy)phenoxy)alkanoic acids and agriculturally acceptable derivatives thereof are selective postemergent herbicides for the control of grassy weeds in valuable crops. The novel herbicides are surprisingly selective, i.e., exhibit little or no phytotoxic effects, to wheat, barley and especially rice at concentrations that control undesired weed grasses.
The application of stop-flow microwave technology to scaling-out SNAr reactions using a soluble organic base
作者:Jameel A. Marafie、Jonathan D. Moseley
DOI:10.1039/b926537f
日期:——
A model SNAr reaction which gives a range of substituted diaryl ethers has been re-developed to function with the soluble organic base DBU in the place of insoluble potassium carbonate. Manufacture of these diaryl ethers has then been achieved by scaling-out in an automated stop-flow microwave reactor to give productivities of >0.5 kg per day. Analogous reaction partners have also been scaled up in
已开发了一种S N Ar模型反应,该反应给出了一系列取代的二芳基醚,可与可溶性有机碱DBU代替不溶的碳酸钾一起发挥作用。然后,通过在自动停止流微波反应器中按比例放大生产这些二芳基醚,以实现每天> 0.5 kg的生产率。在该反应器中也已扩大了类似的反应伙伴,以扩大研究范围。还对放大的间歇式微波反应器进行了简要比较。最后,据报道,该小型微波停止流反应器连续处理24小时,启动后无需人工干预。