Process for producing propargyl bromide
    5.
    发明授权
    Process for producing propargyl bromide 有权
    产生炔丙基溴的方法

    公开(公告)号:US06794551B2

    公开(公告)日:2004-09-21

    申请号:US10231571

    申请日:2002-08-30

    IPC分类号: C07C1700

    CPC分类号: C07C17/16 C07C21/22

    摘要: This invention provides a process of producing propargyl bromide in the absence of a base. The process comprises: A) bringing together in a reaction zone under an inert atmosphere and in the absence of a base and in the presence of an inert diluent, a feed of phosphorus tribromide and a separate feed of propargyl alcohol thereby forming a reaction mixture; B) while mechanically agitating the mixture being formed in A), maintaining the temperature of the mixture in the range of about 0° C. to about 25° C. to form a product mixture, and then C) raising the temperature of the product mixture to a temperature in the range of about 40° C. to about 60° C. while stirring the product mixture for a ride period of at least about 2.5 hours. Such process can be conducted as a batch process, as a semi-batch process, or as a continuous process.

    摘要翻译: 本发明提供了在不存在碱的情况下生产炔丙基溴的方法。 该方法包括:A)在惰性气氛下和不存在碱的情况下,在惰性稀释剂存在下,在反应区中一起加入三溴化磷的进料和炔丙醇的单独进料,从而形成反应混合物; B)同时机械搅拌在A)中形成的混合物,将混合物的温度保持在约0℃至约25℃的范围内以形成产物混合物,然后C)提高产物混合物的温度 在约40℃至约60℃的温度范围内,同时搅拌产物混合物至少约2.5小时的运行时间。该方法可以作为间歇方法进行,作为半间歇方法 ,或作为连续过程。