An iron-catalyzed redox-neutral, decarboxylative olefination of cycloketone oxime esters with α,β-unsaturated carboxylic acids has been developed. This reaction involves an iminyl radical mediated C–C bond cleavage/radical addition/decarboxylation cascade. This protocol is highlighted by its low-cost catalytic system and readily accessible starting materials, as well as broad substrate scope, thus
Photolytic Reactions of (o-Allylbenzyl)dicarbonyl(?5-cyclopentadienyl)iron
作者:Gebhard Thoma、Bernd Giese
DOI:10.1002/hlca.19920750415
日期:1992.6.24
Photolysis of (o-allylbenzyl)dicarbonyl(η5-cyclopentadienyl)iron (4) at 20° in CH2Cl2 leads to carbon-monoxide loss followed by intramolecular complexation to [η2-(o-allylbenzyl)]carbonyl(η5-cyclopentadienyl)iron (13). At 50° in C6D6, a photochemical rearrangement proceeds forming carbonyl (η5-cyclopentadienyl)η3-[3-(2-methylphenyl)allyl]}iron (17). Depending on the temperature, photolysis of 4 leads
Synthesis of aliphatic nitriles from cyclobutanone oxime mediated by sulfuryl fluoride (SO<sub>2</sub>F<sub>2</sub>)
作者:Xian-Lin Chen、Hua-Li Qin
DOI:10.3762/bjoc.19.68
日期:——
Abstract A SO2F2-mediated ring-opening cross-coupling of cyclobutanone oxime derivatives with alkenes was developed for the construction of a range of δ-olefin-containing aliphatic nitriles with (E)-configuration selectivity. This new method features wide substrate scope, mild conditions, and direct N–O activation. Beilstein J. Org. Chem. 2023, 19, 901–908. doi:10.3762/bjoc.19.68
摘要 开发了SO 2 F 2介导的环丁酮肟衍生物与烯烃的开环交叉偶联,用于构建一系列具有( E )构型选择性的含δ-烯烃的脂肪腈。这种新方法具有底物范围广、条件温和、直接N-O活化等特点。 贝尔斯坦 J. 组织。化学。 2023, 19, 901–908。doi:10.3762/bjoc.19.68
Copper‐Catalyzed Intermolecular Heck‐Like Coupling of Cyclobutanone Oximes Initiated by Selective C−C Bond Cleavage
作者:Binlin Zhao、Zhuangzhi Shi
DOI:10.1002/anie.201707181
日期:2017.10.2
The first example of intermolecular olefination of cyclobutanone oximes with alkenes via selective C−C bond cleavage leading to the synthesis of nitriles in the presence of a cheap copper catalyst is reported. The procedure is distinguished by mild and safe reaction conditions that avoid ligand, oxidant, base, or toxic cyanide salt. A wide scope of cyclobutanones and olefin coupling components can