2.
    发明专利
    失效

    公开(公告)号:JPH11512394A

    公开(公告)日:1999-10-26

    申请号:JP51139597

    申请日:1996-09-05

    IPC分类号: C07C5/13 C07C5/31 C07C6/08

    METHOD FOR SUBSTITUTING OLEFINIC COMPOUND AND PRODUCTION OF OLEFIN HAVING TERMINAL DOUBLE BOND

    公开(公告)号:JPH0859522A

    公开(公告)日:1996-03-05

    申请号:JP19554494

    申请日:1994-08-19

    摘要: PURPOSE: To obtain an olefin having either a functional group unsuitable for ionizing reaction or an extended carbon chain by readily substituting an olefinic compound utilizing free radical reaction without using a tin compound having strong toxicity as a raw material. CONSTITUTION: This method for substituting an olefinic compound of formula I (X is an alkoxycarbonyl capable of activating vinyl carbon for the free radical addition, phenyl which may have a substituent group, nitrile, H or a halogen; R1 to R3 are each an alkyl or an aromatic group; at least one of R1 to R3 is the aromatic group comprises adding a free radical (Y.) (Y is a free radical capable of adding to the vinyl carbon of the raw material compound) to the carbon atom forming the terminal vinyl group of the olefinic compound, then eliminating a carbon-centered radical [.C(R1 )(R2 )(R3 )], subsequently substituting the carbon-centered radical with Y and produce an olefin of formula II having terminal double bond. An α-substituted styrene of formula IV can be produced from an olefinic compound of formula III by utilizing the reaction.