申请人:E. I. Du Pont de Nemours and Company
公开号:US04215044A1
公开(公告)日:1980-07-29
Process for preparing an organic compound of the formula R.sup.2 R.sup.2 CFC(O)R.sup.3, which process comprises contacting and reacting in a reaction mixture which includes an inert solvent, at a temperature of -40.degree. C. to -100.degree. C., ROF and ##STR1## R is polyfluoroperhaloalkyl of 1-6 carbon atoms or FOCF.sub.2 ; R.sup.1 is hydrocarbyl of 1-6 carbon atoms; each R.sup.2 is selected from H, alkyl of 1-17 carbon atoms, cycloalkyl of 3-6 carbon atoms, aryl, heteroaryl and such alkyl, cycloalkyl, aryl and heteroaryl substituted by halogen or alkoxy of 1-6 carbon atoms; R.sup.3 is selected from H, alkyl and haloalkyl of 1-16 carbon atoms, cycloalkyl of 3-10 carbon atoms, aryl and haloaryl, OSi(R.sup.1).sub.3, OH, NH.sub.2, alkoxy of 1-6 carbon atoms, aryloxy, NHR.sup.1 and NR.sup.1.sub.2 wherein R.sup.1 is alkyl of 1-6 carbon atoms, N-arylamino and nitrogen or sulfur heterocyclic of 4-5 carbon atoms; R.sup.3 and one R.sup.2 taken together is a diradical which with the C.dbd.C group is carbocyclic, heterocyclic or haloheterocyclic, and recovering from the reaction mixture the compound of the formula R.sup.2 R.sup.2 CFC(O)R.sup.3.
制备化合物R.sup.2 R.sup.2 CFC(O)R.sup.3的过程,包括在惰性溶剂的反应混合物中,将ROF和##STR1##在-40℃至-100℃的温度下接触并反应;其中R为1-6个碳原子的多氟-多卤代烷基或FOCF.sub.2;R.sup.1为1-6个碳原子的烃基;每个R.sup.2从H、1-17个碳原子的烷基、3-6个碳原子的环烷基、芳基、杂芳基以及这样的烷基、环烷基、芳基和杂芳基被卤素或1-6个碳原子的烷氧基取代中选择;R.sup.3从H、1-16个碳原子的烷基和卤代烷基、3-10个碳原子的环烷基、芳基和卤代芳基、OSi(R.sup.1).sub.3、OH、NH.sub.2、1-6个碳原子的烷氧基、芳氧基、NHR.sup.1和NR.sup.1.sub.2中选择,其中R.sup.1为1-6个碳原子的烷基、N-芳基氨基和4-5个碳原子的氮或硫杂环;R.sup.3和一个R.sup.2组成的二元基与C.dbd.C基团一起是碳环、杂环或卤杂环,从反应混合物中回收化合物R.sup.2 R.sup.2 CFC(O)R.sup.3。