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本文报告三氧化硫和氯三氟乙烯的加合反应,以及由此而得的一衍生物。各种定量分析、化学反应和光谱结果指示最合理结构是一个四员杂环的β-磺内酯(Ia+Ib)。对于这一个衍化物的化学性能,也作了初步的研究。同样的,从液体三氧化硫与4,5-二氯全氟戊烯-1、4,6,7-三氯全氟庚烯-1、4,6,8,9-四氯全氟壬烯-1、4,6,8,10,11-五氯全氟十一烯-1的加合反应产物内,经分馏后也可以得到颇为纯粹的同类衍化物(β-磺内酯),产率为70—80％。4,4-二氯全氟丁烯-1以及2,3-二氯全氟丁烯-2与三氧化硫反应后所得的产物则不甚纯净;1,2-二氯二氟乙烯以及全氟丙烯与三氧化硫的反应产物则更不纯净。
This paper reports the adduct of sulfur trioxide with chlorotrifluoroethylene and the resulting derivative. Various quantitative analyzes, chemical reactions, and spectroscopic results indicate that the most plausible structure is a four-member heterocyclic β-sultone (Ia + Ib). For the chemical properties of a derivative, but also made a preliminary study. Similarly, the combination of liquid sulfur trioxide and 4,5-dichloroperiprenylene-1,4,6,7-trichloroperfluoroheptene-1,4,6,8,9-tetrachloropperonyl fluoride Ene-1,4,6,8,10,11-pentachloroperfluoroundecene-1 addition reaction products, the fractionation can also be quite pure derivative (β-sultone) In 70-80% yield. 4, 4-dichloroperfluorobutene-1 and 2,3-dichloroperfluorobutene-2 and sulfur trioxide after the reaction of the resulting product is not very pure; 1,2-dichlorodifluoroethylene and all The reaction product of fluoropropene and sulfur trioxide is more impure.