NCN-Pincer Cobalt Complexes Containing Bis(oxazolinyl)phenyl Ligands

被引：12
作者：
Hosokawa, Satomi [1 ]
Ito, Jun-ichi [1 ]
Nishiyama, Hisao [1 ]
机构：
[1] Nagoya Univ, Dept Appl Chem, Grad Sch Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源：
ORGANOMETALLICS | 2013年 / 32卷 / 14期
基金：
日本学术振兴会;
关键词：
H BOND ACTIVATION; REGIOSPECIFIC CYCLOMETALATION; STRUCTURAL-CHARACTERIZATION; COORDINATION; ALDEHYDES; ARENES;
D O I：
10.1021/om400450n
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
We describe the preparation and characterization of new NCN-pincer Co(III) complexes containing bis(oxazolinyl)phenyl (phebox) ligands as auxiliary ligands. The reaction of Co-2(CO)(8) with the 2-bromo-substituted ligand precursor (phebox-R)Br (1a, R = Me-2; 1b, R = iPr) resulted in the formation of the tricarbonyl Co(I) complex (phebox-R)Co(CO)(3) (2a, R = Me-2; 2b, R = iPr), in which NC-bidentate coordination of the phebox ligand was observed. Complexes 2 underwent oxidative addition of I-2 to give the Co(III) aqua complex (phebox-R)CoI2(H2O) (4a, R = Me-2; 4b, R = iPr) by a change in the coordination geometry to the NCN-tridentate mode. Ligand exchange reactions of H2O or I ligand with CNtBu or AgOAc smoothly proceeded to give the isocyanide complex (phebox-dm)CoI2(CNtBu) (5) or the acetate complex (phebox-dm)Co(kappa(1)-OAc)(kappa(2)-OAc) (6), respectively.
引用
收藏
页码：3980 / 3985
页数：6
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