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Cyclooctatetraene (COT)-coordinated diiron carbene complexes and their remarkable thermolysis reactions
其他题名环辛四烯配体的双铁卡宾络合物和它们的热解反应
Zhang L(张磊); Zhang S(张庶); Xu Q(徐强); Xiao N(肖努); Sun J(孙杰); Chen JB(陈家碧)
2005
发表期刊Organometallics
ISSN0276-7333
卷号24期号:5页码:933-944
摘要The reactions of the COT-coordinated diiron cationic bridging carbyne complexes [Fe-2(mu-CAr)(CO)(4)(eta(8)-C8H8)]BF4 (1, Ar = C6H5; 2, Ar = p-CH3C6H4; 3, Ar = p-CF3C6H4) with p-methylaniline gave the COT-coordinated diiron Fischer-type carbene complexes [Fe-2{= C(Ar)NHC6H4CH3-p}(mu-CO)(CO)(3)(eta(8)-C8H8)] (7, Ar = C6H5; 8, Ar = p-CH3C6H4; 9, Ar = p-CF3C6H4). Heating the solution of diiron carbene complexes [Fe-2{=C(Ar)NHC6H5}(mu-CO)-(CO)(3)(eta(8)-C8H8)] (4, Ar = C6H5; 5, Ar = p-CH3C6H4; 6, Ar = p-CF3C6H4) in benzene in a sealed tube at 85-90degreesC for 72 h afforded the chelated diiron carbene complex [Fe-2{=C(C6H5)-NC6H5}(eta(2):eta(3):eta(2)-C8H9)(CO)(4)] (4a), C-8 ring addition products [Fe-2{N(C6H5)=C(Ar)(eta(1):eta(3):eta(2)-C8H9)}(CO)(5)] (10, Ar = C6H5; 12, Ar = p-CH3C6H4; 14, Ar = p-CF3C6H4), and C-7 contraction ring products [Fe-2{N(C6H5)=C(Ar)CH(eta(2):eta(3)-C7H8)(CO)(4)}] (11, Ar = C6H5; 13, Ar = p-CH3C6H4; 15, Ar = p-CF3C6H4), respectively. The similar thermolysis of complexes 7 and 8 afforded corresponding thermolysis products [Fe-2{=C(C6H5)NC6H4CH3-p}(eta(2):eta(3):eta(2)-C8H9)(CO)(4)] (7a), [Fe-2{N(C6H4CH3-p)=C(Ar)(eta(1):eta(2):eta(3)-C8H9)}(CO)(5)] (16, Ar = C6H5; 18, Ar = p-CH3C6H4), and [Fe-2{N(C6H4CH3-p)=C(Ar)CH(eta(2):eta(3)-C7H8)}(CO)(4)] (17, Ar = C6H5; 19, Ar = p-CH3C6H4), respectively. Interestingly, products 4a and 7a were transformed into the eight-membered ring products 10 and 16 and seven-membered ring products 11 and 17, respectively, under similar conditions. Surprisingly, compounds 10, 16, and 18 can also be partially transformed into compounds 11, 17, and 19, respectively, by further thermolysis at higher temperature (100-105degreesC). The structures of complexes 7, 10, 11, 18, and 19 have been established by X-ray diffraction studies.
学科领域金属有机化学
部门归属上海有机所; 日本工业科学技术研究所
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收录类别SCI
语种英语
WOS记录号WOS:000227098200026
引用统计
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/21405
专题金属有机化学国家重点实验室
通讯作者Chen JB(陈家碧)
推荐引用方式
GB/T 7714
Zhang L,Zhang S,Xu Q,et al. Cyclooctatetraene (COT)-coordinated diiron carbene complexes and their remarkable thermolysis reactions[J]. Organometallics,2005,24(5):933-944.
APA 张磊,张庶,徐强,肖努,孙杰,&陈家碧.(2005).Cyclooctatetraene (COT)-coordinated diiron carbene complexes and their remarkable thermolysis reactions.Organometallics,24(5),933-944.
MLA 张磊,et al."Cyclooctatetraene (COT)-coordinated diiron carbene complexes and their remarkable thermolysis reactions".Organometallics 24.5(2005):933-944.
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