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    PRODUCTION OF OPENED CYCLOPROPANE RING COMPOUND
    4.
    发明专利
    PRODUCTION OF OPENED CYCLOPROPANE RING COMPOUND 失效

    公开(公告)号：JPH11322749A

    公开(公告)日：1999-11-24

    申请号：JP13334998

    申请日：1998-05-15

    申请人： SUMIKA FINE CHEMICALS CO LTD

    发明人： HAYASHI TAKETO ,  YASUOKA JUNICHI ,  NISHIURA AKITAKA

    IPC分类号： C07D473/32 ,  B01J23/44 ,  C07B37/00 ,  C07B61/00

    摘要： PROBLEM TO BE SOLVED: To safely produce an opened cyclopropane ring compound in a high yield and good operability by reacting a specific compound having cyclopropane ring with formic acid or its salt in the presence of a catalyst. SOLUTION: The objective opened cyclopropane ring compound of formula II is produced by reacting (A) a compound having cyclopropane ring and expressed by formula I (A is CH2 or are each H, Cl, Br or I; R and R are each H, a 1-6C alkyl or a 1-7C acyl; R and R are not 1-7C acyl at the same time) with (B) formic acid or a formic acid salt (preferably sodium formate, potassium formate or ammonium formate) in the presence of (C) a catalyst (preferably Pd, Pt, Ni or their compounds) under normal pressure. The amount of the component C is preferably >=10 pts.wt. based on 100 pts.wt. of the component A. The amount of the component B is preferably >=1.5 mol based on 1 mol of the component A.