Au(III)/TPPMS-Catalyzed Benzylation of Indoles with Benzylic Alcohols in Water
作者:Hidemasa Hikawa、Hideharu Suzuki、Isao Azumaya
DOI:10.1021/jo402151g
日期:2013.12.6
A novel and efficient method for the Au(III)/TPPMS-catalyzed direct substitution reaction of benzhydryl and benzylic alcohols with indoles in water is developed. Au(III)/TPPMS is an effective catalyst for the benzylation of the strong pi nucleophile 1-methylindole, while common Bronsted or Lewis acids are ineffective.
Regioselective benzylation of imidazo[1,5-a]pyridines and indoles via iodine catalyzed reaction using alcohols - An approach to crystal structure prediction, DFT studies and Hirshfeld surface analysis
作者:Nagaraju Chaithra、Hassan A. Swarup、S. Chandrasekhar、B.K. Jayanna、Karthik Kumara、Kempegowda Mantelingu、N.K. Lokanath
DOI:10.1016/j.molstruc.2023.136591
日期:2024.1
crystallized in triclinic crystal system with P-1 space group. The molecular structure is stabilized by short intermolecular interactions and intramolecular C-H…N hydrogen bond interactions. The crystal structure also exhibits intermolecularC-H…π, C-Cl…π and π…π stacking interactions. The intermolecular interactions are quantified through Hirshfeld surface analysis using fingerprint plots. The surface properties
已开发出碘催化的咪唑并[1,5-a]吡啶区域选择性 C-1 苄基化反应和吲哚与二苯甲醇的 C-3 苄基化反应。这种新方案为苄基化方法的合成提供了一种有效的方案,因为它仅针对 CH 键,即使存在反应性 NH 键,并且可以合成各种苄基取代的吲哚和咪唑并[1,5-a]吡啶。功能导致在无金属条件下优雅地形成新的 CC 键。该报告代表了从固体工作台稳定的二芳基甲醇合成三(杂芳基/芳基)甲烷的温和方案。所形成的产品因其潜在的生物应用而令人感兴趣。化合物 3k 的晶体结构通过单晶 X 射线衍射研究确定。该化合物结晶为三斜晶系,空间群为P-1。分子结构通过短的分子间相互作用和分子内CH…N氢键相互作用而稳定。晶体结构还表现出分子间CH…π、C-Cl…π和π…π堆积相互作用。分子间相互作用通过赫什菲尔德表面分析使用指纹图进行量化。使用 3D Hirshfeld 曲面分析表面特性。此外,进行密度泛函理论计算以计算分子的电子性质。HOMO-LUMO