diiron nonacarbonyl 、 反式-1,2-二溴-1,2-二氢苯并环丁烷 在
Bu3SnCl 、 LiAlH4 作用下,
以
not given 为溶剂,
以75%的产率得到benzocyclobutadiene(tricarbonyl)iron
参考文献:
名称:
Evidence for metal induced bond localization in cyclobutabenzenes: The crystal and molecular structures of η6-Cr(CO)3 and η4-Fe(CO)3 complexes of cyclobutabenzene
摘要:
The crystal and molecular structure of the title compounds were determined at low temperatures. The accuracy of the structures allows for a discussion about the bond alternation in the six-membered ring. It was found that both complexes show bond localization, whereas the benzocyclobutene-Cr(CO)(3) shows localization in the Mills-Nixon effect manner, the benzocyclobutadiene-Fe(CO)(3) shows an anti-Mills-Nixon localization. (C) 1997 Elsevier Science S.A.
Hydrocarbon complexes of iron, ruthenium, and osmium. Part VIII. Isolation of η-(1,1,1-tricarbonyl-1-metallainden-1-yl) tricarbonylmetal-(M–M)[M = iron, ruthenium, or osmium] complexes: crystal and molecular structure of η-(1,1,1-tricarbony-1-osmainden-1-yl)tricarbonylosmium (Os–Os)
作者:Paul J. Harris、Judith A. K. Howard、Selby A. R. Knox、Richard P. Phillips、F. Gordon A. Stone、Peter Woodward
DOI:10.1039/dt9760000377
日期:——
was solved by conventional heavy-atom methods from 2 152 independent reflections and refined to R= 0.053 (R′= 0.064). One osmium atom has been incorporated with the eight carbon atoms of the original cyclo-octatetraene ring to form a planar osmaindenyl system. The second osmium atom is bonded to the first [Os–Os = 2.754(2)Å] and is also η4-bonded to the four carbon atoms of the 5-membered ring, thereby
[Os(MMe 3)2(CO)4 ](M = Si或Ge)或[Os(SiMe 3)(CO)4 } 2 ]用环辛烯(COT)处理主要得到1,2, 3,3a,6a-η-1,4,5,6-四氢戊烯基配合物[Os(MMe 3)(CO)2(C 8 H 9)],少量形成[Os 2(CO)6(C 8 H 10)]和未确定的COT二聚体[Os(CO)2(C 16 H 16)]和[Os(CO)3(C 16 H 16))]。后者也是在辛烷中用COT加热[Os 3(CO)12 ]时形成的。在紫外线照射下,从[Os(SiMe 3)(CO)4 } 2 ]和COT中获得[Os(CO)3(C 8 H 8)]的中等产率。二甲基(四羰基)和环辛酸酯提供了一种复杂的混合物,从该混合物中,η-(1,1,1-三羰基-1-osmainden-1-yl)三羰基os(Os – Os),[Os 2(CO)6(C得到8 H 6)],并通
Kerber, Robert C.; Ribakove, Everett C., Organometallics, 1991, vol. 10, # 8, p. 2848 - 2853
作者:Kerber, Robert C.、Ribakove, Everett C.
DOI:——
日期:——
Benzoladderene Mechanophores: Synthesis, Polymerization, and Mechanochemical Transformation
作者:Jinghui Yang、Matias Horst、Joseph A. H. Romaniuk、Zexin Jin、Lynette Cegelski、Yan Xia
DOI:10.1021/jacs.9b01736
日期:2019.4.24
yield semiconducting polyacetylene. Herein, we report the scalable synthesis of benzoladderenes as new mechanophore monomers. Ring-opening metathesis polymerization of benzoladderenes yielded homopolymers and block copolymers with controlled molecular weights and low dispersity. The resulting nonconjugated poly(benzoladderene) was mechanochemically transformed into conjugated poly( o-phenylene-hexatrienylene)
Evidence for metal induced bond localization in cyclobutabenzenes: The crystal and molecular structures of η6-Cr(CO)3 and η4-Fe(CO)3 complexes of cyclobutabenzene
The crystal and molecular structure of the title compounds were determined at low temperatures. The accuracy of the structures allows for a discussion about the bond alternation in the six-membered ring. It was found that both complexes show bond localization, whereas the benzocyclobutene-Cr(CO)(3) shows localization in the Mills-Nixon effect manner, the benzocyclobutadiene-Fe(CO)(3) shows an anti-Mills-Nixon localization. (C) 1997 Elsevier Science S.A.