Process for preparing 3-pentenenitrile
    41.
    发明授权
    Process for preparing 3-pentenenitrile 失效
    制备3-胆固醇的方法

    公开(公告)号:US3849472A

    公开(公告)日:1974-11-19

    申请号:US37718373

    申请日:1973-07-09

    申请人: ICI LTD

    发明人: WADDAN D

    摘要: 1. A PROCESS FOR THE MANUFACTURE OF 3-PENTENENITRILE WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE -25* C. TO 200* C. A MIXTURE OF BUTADIENE, HYDROGEN CYANIDE AND, AS SOLE CATALYST, A COMPLEX OF CUPROUS CHLORIDE, BROMIDE OR IODIDE WITH AN ORGANIC NITRILE SELECTED FROM 3-PENTENENITRILE AND COMPOUNDS HAVING NITRILE GROUPS ATTACHED TO A SATURATED OR ETHYLENICALLY UNSATURATED HYDROCARBON RESIDUE CONTAINING UP TO THREE CARBON ATOMS, THE SAID CATALYST BEING USED IN THE AMOUNT OF 0.0005 TO 0.1 MOLE PER MOLE OF BUTADIENE, THE MOLAR RATIO OF BUTADIENE TO HYDROGEN CYANIDE BEING 2:1 TO 1:4, AND THE CATALYST COMPLEX BEING FORMED BY MIXING THE SAID CUPOROUS SALT WITH THE SAID ORGANIC NITRILE BEFORE OR AT THE SAME TIME AS IT IS MIXED WITH THE BUTADIENE AND HYDROGEN CYANIDE.