Synthesis of Furoneoflavones Modified by Coumarin and (HET)Aroyl Substituents
作者:T. V. Shokol、V. S. Moskvina、Ye. K. Hlibov、M. S. Frasinyuk、V. P. Khilya
DOI:10.1007/s10600-021-03275-4
日期:2021.1
Furo[3,2-g]neoflavones and furo[2,3-h]neoflavones modified by coumarin and (het)aroyl substituents were synthesized via reactions of 7-hydroxy-6(8)-acetyl(formyl)neoflavones with substituted phenacyl bromides, 2-bromacetylbenzofuran, and 4-chloromethylcoumarins.
Iridium(<scp>i</scp>) complexes bearing hemilabile coumarin-functionalised N-heterocyclic carbene ligands with application as alkyne hydrosilylation catalysts
作者:Mert Olgun Karataş、Bülent Alıcı、Vincenzo Passarelli、Ismail Özdemir、Jesús J. Pérez-Torrente、Ricardo Castarlenas
DOI:10.1039/d1dt01946e
日期:——
A set of iridium(I) complexes of formula IrCl(κC,η2-IRCouR′)(cod) or IrCl(κC, η2-BzIRCouR′)(cod) (cod = 1,5-cyclooctadiene; Cou = coumarin; I = imidazolin-2-carbene; BzI = benzimidazolin-2-carbene) have beeen prepared from the corresponding azolium salt and [Ir(μ-OMe)(cod)]2 in THF at room temperature. The crystalline structures of 4b and 5b show a distorted trigonal bipyramidal configuration in the
一组铱(我)式的IrCl的复合物(κ Ç,η 2 -I - [R凑R' )(COD)或的IrCl(κ Ç,η 2 -BzI ř凑R' )(COD)(COD = 1, 5-环辛二烯;Cou = 香豆素;I = 咪唑啉-2-卡宾;BzI = 苯并咪唑啉-2-卡宾)在室温下由相应的唑鎓盐和 [Ir(μ-OMe)(cod)] 2在 THF 中制备. 4b和5b的晶体结构显示了在固态下具有协调的香豆素部分的扭曲三角双锥构型。相比之下,由于吡喃酮环的半化能力,在溶液中观察到该五配位结构与相关方形平面异构体之间的平衡。分别在低温和高温极限下实现了两种物质的 NMR 表征。此外,平衡的热力学参数 Δ H R和 Δ S R是通过 VT 1 H NMR 光谱获得的,并且落在 22-33 kJ mol -1和 72-113 J mol -1 K -1 的范围内,分别。IrCl(κ C ,η 2-BzI Tol
One-pot synthesis of 4-heteroaryl-1,2-dihydro-3-benzazepines from 3,4-dihydroisoquinolinium salts or pseudo bases
作者:Alexander A. Zubenko、Viktor G. Kartsev、Anatolii S. Morkovnik、Ludmila N. Divaeva、Danil V. Alexeenko、Kyrill Yu. Suponitsky、Gennadii S. Borodkin、Alexander I. Klimenko
DOI:10.1016/j.tetlet.2017.02.036
日期:2017.3
novel one-pot synthetic route to the poorly studied 4-heteroaryl-1,2-dihydro-3-benzazepine motif from 3,4-dihydroisoquinolinium compounds is described. The synthetic approach is based on heterocyclic ring expansion of isoquinoline substrates upon reaction with chloromethyl-substituted heterocycles. The scope and limitations of the reaction were investigated to give a series of novel heteroaryl-3-benzazepines
作者:K. M. Kondratyuk、V. A. Dluzhevskii、S. P. Bondarenko、V. S. Brovarets、M. S. Frasinyuk
DOI:10.1007/s10600-019-02766-9
日期:2019.7
New coumarin-4-ylmethylphosphonates and coumarin-4-ylmethylphosphonic acids were synthesized and tested for antiviral activity.
合成了新的香豆素-4-基甲基膦酸酯和香豆素-4-基甲基膦酸并测试了抗病毒活性。
[EN] HETEROARYL-3-PIPERIDINEDIONE COMPOUND AND USE THEREOF<br/>[FR] COMPOSÉ HÉTÉROARYLE-3-PIPÉRIDINEDIONE ET SON UTILISATION<br/>[ZH] 杂芳-3-哌啶二酮类化合物及其应用