Process for the preparation of aryl carbonates
    1.
    发明授权
    Process for the preparation of aryl carbonates 失效
    制备芳基碳酸酯的方法

    公开(公告)号:US5602271A

    公开(公告)日:1997-02-11

    申请号:US494111

    申请日:1995-06-23

    CPC分类号: C07C68/02

    摘要: Carbonates with aromatic ester groups are prepared by reaction of aromatic monohydroxy compounds with phosgene or with chloroformic acid esters of aromatic monohydroxy compounds, whereby operations are carried out at a temperature in the range of 50.degree. to 450.degree. C. and at a pressure in the range of 0.05 to 20 bar in the presence of metallates of the elements of groups IIIa, IVa, Va, VIa, IIIb, IVb, Vb, VIb, VIIb, and VIII of the Mendeleev periodic system as heterogeneous catalysts.

    摘要翻译: 具有芳族酯基的碳酸酯通过芳族单羟基化合物与光气或芳族单羟基化合物的氯甲酸酯的反应制备,由此操作在50-450℃的温度和 在作为多相催化剂的Mendeleev周期系统的IIIa,IVa,Va,VIa,IIIb,IVb,Vb,VIb,VIIb和VIII族元素的金属盐存在下,其范围为0.05至20巴。