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Multiple cluster CH activations and transformations of furan by triosmium carbonyl complexes†
Chemical Communications ( IF 4.3 ) Pub Date : 2018-03-13 00:00:00 , DOI: 10.1039/c8cc01532e
Richard D. Adams 1, 2, 3, 4 , Emmanuel J. Kiprotich 1, 2, 3, 4 , Mark D. Smith 1, 2, 3, 4
Affiliation  

Reaction of Os3(CO)10(NCMe)2 with the triosmium furyne complex Os3(CO)932-C4H2O)(μ-H)2, 1 yielded the bis-triosmium complex 2 containing a bridging furyenyl ligand by CH activation at the uncoordinated C–C double bond. Heating 2 led to additional CH activation with formation of the first furdiyne C4O ligand in the complex Os3(CO)9(μ-H)232-2,3-μ32-4,5-C4O)Os3(CO)9(μ-H)2, 3. The furdiyne ligand in 3 was subsequently ring-opened and decarbonylated to yield products 4 and 5 containing novel bridging C3 ligands. Complex 2 also undergoes ring opening to yield an intermediate Os3(CO)9(μ-H)(μ32-μ-η2-CH–C–CH–C[double bond, length as m-dash]O)Os3(CO)10(μ-H), 6 which was also decarbonylated thermally to yield 4 and 5. All products were characterized by a combination of IR, NMR, mass spec and single-crystal X-ray diffraction analyses.

中文翻译:

羰基tri配合物对CH的多簇CH活化和呋喃的转化

O的反应3(CO)10(NCMe)2与triosmium furyne复杂锇3(CO)9(μ 3,η 2 -C 4 ħ 2 O)(μ-H)21得到的双- triosmium复杂2在非配位的CC双键处通过CH活化含有桥联的呋喃基配体。加热2导致额外CH激活与在形成第一furdiyne的C 4中的O复杂锇配位体3(CO)9(μ-H)2(μ 32-2,3-μ 32 -4,5--C 4 O)O的3(CO)9(μ-H)23。随后将3中的呋喃炔配体开环并脱羰基,得到含有新颖桥连C 3配体的产物45。复杂2也经历开环,得到中间体O的3(CO)9(μ-H)(μ 32 -μ-η 2 -CH-C-CH-C O)O的3(CO)10(μ -H),6[双键,长度为m-破折号]其也被热脱羰,得到45。所有产品均通过IR,NMR,质谱和单晶X射线衍射分析进行了表征。
更新日期:2018-03-13
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