ORGANOCHROMIUM PI-COMPLEXES .5. COMPOUNDS CONTAINING ETA-4-1,3-DIENE AND ETA-2-ALKYNE MOLECULES

被引：6
作者：
JOLLY, PW
ZAKRZEWSKI, U
机构：
[1] Max-Planck-Institut für Kohlenforschung
来源：
POLYHEDRON | 1991年 / 10卷 / 12期
关键词：
D O I：
10.1016/S0277-5387(00)81279-6
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Cr(PMe3)2Cl2 reacts with active-Mg and butadiene or Mg(butadiene) in a stepwise manner to give initially (eta-4-1,3-C4H6)Cr(PMe3)2Cl which reacts further to (eta-4-1,3-C4H6)2CrPMe3. Related compounds are formed in the presence of PMe2Ph or 2,3-dimethylbutadiene. Cr(PEt3)2Cl2 reacts to give the dimeric species [(eta-4-2,3-dimethylbutadiene)Cr(PEt3)Cl]2, whereas in the presence of the bidentate ligand bis(diisopropylphosphino)ethane, (eta-4-1,3-C4H6)Cr(Pr2(i)PC2H4PPr2(i)) is formed. Related reduction of CrCl2-derivatives in the presence of alkynes leads to the formation of (eta-2-R'C = CR')2Cr(PR3)2 (R' = Me, Ph) and (eta-2-PhC = CPh)3CrPMe3.
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页码：1427 / 1431
页数：5
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