| 主权项 |
1. Process for preparing organic compounds of the general formula (I) in which i is 0, 1, 2 or 3, j is 0, 1, 2, 3 or 4, R2 independently at each occurrence is selected from unsubstituted or fluoro-, NR42-, C1-C6-alkyl- or C1-C6-alkoxy-substituted C1-C6-alkyl, C6-C10-aryl or C7-C11-aralkyl, it being possible for each R4 independently to be C1-C6-alkyl, C7-C10-aryl or C7-C11-aralkyl, R3 independently at each occurrence is selected from fluoro, chloro, NR42, unsubstituted or NR42- or C1-C6-alkoxy-substituted C1-C6-alkyl, and also unsubstituted or fluoro-, NR42- or C1-C6-alkoxy-substituted C1-C6-alkoxy or C7-C11-aralkyl, where each R4 independently has the definitions indicated above, and where two or more of the substituents R2 and/or R3 together form an aromatic, heteroaromatic, aliphatic or heteroaliphatic ring system, subject to the condition that the vinyl function which carries R2 is not part of such a ring system if that system is aromatic or heteroaromatic, and R1 is an unsubstituted or fluoro-, C1-C10-alkyl-, C1-C6-alkoxy-, or NR42-substituted C1-C15-alkyl, C3-C7-cycloakyl, C2-C15-alkenyl, C3-C7-cycloalkenyl, C2-C15-alkynyl, C1-C6-alkoxy, C7-C15-aralkyl or C6-C10-aryl radical, or is a correspondingly substituted or unsubstituted aliphatic or aromatic C3-C12 heterocycle, with each R4 independently having the definitions indicated above, by reacting chlorostyrenes of the general formula (II) in which R2, R3, i and j have the definitions described for formula (I), with organomagnesium compounds of the formal composition (III)
[M+]n[RmMgXkYl] (III), in which R1 has the definition described for formula (I), M is lithium, sodium or potassium, X is fluoro, chloro, bromo or iodo, Y is fluoro, chloro, bromo or iodo, n is 0, 1, 2, 3 or 4, m is 1, 2, 3, 4, 5 or 6, k is 0, 1, 2, 3 or 4, l is 0, 1, 2, 3 or 4, and at the same time the relation
n+2=m+k+l is valid, wherein the reaction is carried out in the presence of iron compounds. |
