| 摘要 |
NEW MATERIAL:A compound expressed by formula I (R<1>-R<6> are 1-6C alkyl, any one of R<1>-R<3> and any one of R<4>-R<6> may form a group expressed by formula II, n is 1-7). EXAMPLE:A compound expressed by formula III. USE:A raw material, capable of readily carrying out anionic living polymerization and useful as a raw material for producing polybutadiene. PREPARATION:A 2-magnesium chloro-1,3-butadiene expressed by the formula CH2=CH-C(MgCl)=CH2 is reacted with an N-substituted alkylsilyl group- containing compound expressed by formula IV [Z is halogen or OR<7> (R<7> is 1-6C alkyl; n is 1-7] normally in the presence of a catalyst, such as Li2CuCl4, in an ether, such as diethyl ether, at 0-100 deg.C for 1-10hr.
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