Iodobenzene-catalyzed oxidative cleavage of olefins to carbonyl compounds
作者:Lele Du、Zechao Wang、Junliang Wu
DOI:10.1016/j.tetlet.2020.152204
日期:2020.8
A metal-free approach for the oxidativecleavage of carbon–carbon double bonds of olefins to carbonyl compounds was established by using oxidant m-CPBA and non-metallic organocatalyst PhI in toluene/H2O. A broad scope of aromatic olefins was used. All the reactions proceeded smoothly at 35 °C in short reaction time to furnish the respective mono- and double carbonyl compounds selectively in moderate
通过使用氧化剂m -CPBA和甲苯/ H 2 O中的非金属有机催化剂PhI,建立了一种无金属的方法将烯烃的碳-碳双键氧化裂解为羰基化合物。使用了广泛的芳族烯烃。所有反应均在35°C的短时间内顺利进行,以中等至良好的收率选择性提供各自的单羰基化合物和双羰基化合物。
Syntheses and N-methyl-D-aspartate Receptor Antagonist Pharmacology of Fluorinated Arylcycloheptylamines
作者:Shengguo Sun、Jason Wallach、Adeboye Adejare
DOI:10.2174/1573406410666140428104444
日期:2014.10.23
vivo efficacy. Syntheses and analyses of six novel compounds, 1-(4- fluorophenyl)cycloheptanamine (3), 1-(1-(4-fluorophenyl)cycloheptyl)piperidine (4), 1-(1-(4-fluorophenyl)cycloheptyl) pyrrolidine (5), 1-(3-fluorophenyl)cycloheptanamine (6), 1-(1-(3-fluorophenyl)cycloheptyl)piperidine (7), 1-(1-(3-fluorophenyl) cycloheptyl)pyrrolidine (8) and several related reference arylcyloalkylamines are described
Electrophotochemical Ce-Catalyzed Ring-Opening Functionalization of Cycloalkanols under Redox-Neutral Conditions: Scope and Mechanism
作者:Zhaoliang Yang、Dali Yang、Jianye Zhang、Chenyu Tan、Jiajun Li、Shengchun Wang、Heng Zhang、Zhiliang Huang、Aiwen Lei
DOI:10.1021/jacs.2c05520
日期:2022.8.3
alcohols is gaining increasing interest in organic synthesis and biomass conversion. In particular, the development of redox-neutral catalytic methods with cheap catalysts and clean energy is of utmost interest. In this work, we report a versatile redox-neutral method for the ring-opening functionalization of cycloalkanols by electrophotochemical (EPC) cerium (Ce) catalysis. The EPC-Ce-enabled catalysis
halogen-bond-assisted C–C activation of cyclic and acyclic alkanols in the absence of catalysts and oxidants, where the inexpensive N-haloimides act as bifunctional reagents to activate and halogenate alcohols. This redox-neutral protocol is a general method for the halogenation of the C–C bonds of primary, secondary, and tertiary alkanols, thus installing three types of halogen atoms and boronic esters
Auto de-bromine-coupling reactions of 1-aryl-7-bromocycloheptenes to a new series of [7-6-6] tricyclic system were described. A variety of substituents at the para-position of the phenyl were amenable to this transformation, including electron-donating groups and halides. The presence of electron-donating groups resulted in a more efficient reaction, with higher yields than the case of halides. (C) 2014 Elsevier Ltd. All rights reserved.