Half-Sandwich Ruthenium Complexes for One-Pot Synthesis of Quinolines and Tetrahydroquinolines: Diverse Catalytic Activity in the Coupled Cyclization and Hydrogenation Process
作者:Xue-Jing Yun、Jing-Wei Zhu、Yan Jin、Wei Deng、Zi-Jian Yao
DOI:10.1021/acs.inorgchem.0c00955
日期:2020.6.1
the direct one-pot synthesis of tetrahydroquinoline derivatives from amino alcohols and ketones has been also developed on the basis of the continuous catalytic activity of this rutheniumcatalyst in the selective hydrogenation of the obtained quinoline derivatives with a low catalyst loading. The corresponding products, quinolines and tetrahydroquinoline derivatives, were afforded in good to excellent
Starting from readily available 7-substituted 1-indanones, products with a tetracyclo[5.3.1.01,7 04,11 ]undec-2-ene skeleton were obtained upon irradiation at λ=350 nm (eight examples, 49-67 % yield). The assembly of the structurally complex carbon framework proceeds in a three-photon process comprising an ortho photocycloaddition, a disrotatory [4π] photocyclization, and a di-π-methane rearrangement
Coumarins. VII. The Acid-catalyzed Reaction of Aromatic Compounds with β-Chlorocarboxylic Acids
作者:Kikumasa Sato、Yau-Shin Lin、Takeshi Amakasu
DOI:10.1246/bcsj.42.2600
日期:1969.9
The aluminum chloride-catalyzed reaction of aromatic compounds, such as benzene and phenols, with β-chlorocarboxylic acids was investigated. Although the reactions of benzene, toluene, and chlorobenzene with β-chloropropionic acid were found to give the corresponding dihydrocinnamic acids in high yields, attempts to prepare dihydrocoumarin by a similar reaction of phenol were unsuccessful. Similarly
Syntheses, structures and catalytic activity of copper(II) complexes with hydroxyindanimine ligands
作者:Guangrong Tang、Yue-Jian Lin、Guo-Xin Jin
DOI:10.1016/j.jorganchem.2007.06.023
日期:2007.9
obtained from the chlorobenzene solution of the complex2, which has the same molecule formula with the complex2 but it is a polymorph. All copper(II) complexes were characterized by their IR and elemental analyses. In addition, X-ray structure analyses were performed for complexes 1, 2, and 2′. After being activated with methylaluminoxane (MAO), complexes 1–3 can be used as catalysts for the vinyl polymerization
一系列新的羟基茚满胺配体[ArNCC 2 H 3(CH 3)C 6 H 2(R)OH](Ar = 2,6- i -Pr 2 C 6 H 3,R = H(HL 1),R =合成并表征了Cl(HL 2)和R = Me(HL 3)。羟基茚满胺与Cu(OAc)2 ·H 2 O的反应导致形成单核双(羟基茚满胺)铜(II)配合物Cu [ArNCC 2 H 3(CH 3)C 6 H2(R)O] 2(Ar = 2,6- i -Pr 2 C 6 H 3,R = H(1),R = Cl(2),和R = Me(3))。复2'是从复杂的氯苯溶液得到2,其具有与所述复合物中的同一分子式2,但它是一个多晶型物。所有铜(II)配合物均通过红外光谱和元素分析进行了表征。此外,X射线结构分析是对络合物进行1,2,和2' 。用甲基铝氧烷(MAO)活化后,络合物1– 3可用作具有适度催化活性的降冰片烯乙烯基聚合的催化剂。
Polymerization of methyl methacrylate catalyzed by nickel complexes with hydroxyindanone-imine ligands
作者:Guangrong Tang、Guo-Xin Jin
DOI:10.1039/b708048d
日期:——
6-i-Pr(2)C(6)H(3), R = Me (2), R = H (3), and R = Cl (4)). All nickel complexes were characterized by their IR, NMR spectra and elemental analyses. In addition, X-ray structure analyses were performed for complexes 1 and 2. After being activated with methylaluminoxane (MAO), these nickel(II) complexes can be used as catalysts for the polymerization of methylmethacrylate (MMA) to produce syndiotactic-rich PMMA. Catalytic