tryptamine derivativesemploying a combination of alkynes and sulfonyl azides as readily accessible aminoethylating agents. The reaction features a successful integration of copper‐catalyzed alkyne and azide cycloaddition to N‐sulfonyl‐1,2,3‐triazole, rhodium‐catalyzed selective insertion of α‐iminocarbenes onto the C3H bond of indoles, and reduction of the resultant enamides to tryptamine derivatives employing
Mild reduction with silanes and reductive amination of levulinic acid using a simple manganese catalyst
作者:Diego A. Roa、Juventino J. Garcia
DOI:10.1016/j.ica.2020.120167
日期:2021.2
complex [Mn(CO)5Br] was studied for the selective reduction of levulinic acid (LA) to 2-methyl-tetrahydrofuran (MTHF). We further studied the production of pyrrolidines via its reductiveamination using silanes (phenylsilane and tetramethyldisiloxane). The results showed high efficiency and selectivity for this reaction leading to high yields using mild reaction conditions.
Multivalent indole compounds and use thereof as phospholipase-A2 inhibitors
申请人:Chang Han-Ting
公开号:US20070135385A1
公开(公告)日:2007-06-14
Indole and indole-related compounds, compositions and methods are disclosed. The compounds of the invention are useful as phospholipase inhibitors. The compounds and compositions of the invention are useful for treatment of phospholipase-related conditions, such as insulin-related, weight-related and/or cholesterol-related conditions in an animal subject.
A sustainable C–H functionalization of indoles, pyrroles and furans under a blue LED with iodonium ylides
作者:Saibal Sar、Ranajit Das、Dhiraj Barman、Pikaso Latua、Souvik Guha、Ludovic Gremaud、Subhabrata Sen
DOI:10.1039/d1ob01219c
日期:——
Pyrrole and indole derivatives are functionalized via a green initiative with the dimethylmalonate derived phenyl iodonium ylide 4a in the presence of a blue LED via C–H functionalization of the respective heterocycles in methanol to generate the desired compounds 5–7 in moderate to good yields. Control experiments provide insight into the probable reaction mechanism. Finally, the strategy is successfully
吡咯和吲哚衍生物通过绿色倡议与丙二酸二甲酯衍生的苯基碘鎓叶立德4a在蓝色 LED 存在下通过甲醇中各自杂环的 C-H 官能化进行官能化,以中等至良好的产率生成所需的化合物5-7 . 对照实验提供了对可能反应机制的深入了解。最后,该策略成功应用于azepino[4,5- b ]indole 12a / b的生成。
Gold/scandium bimetallic relay catalysis of formal [5+2]- and [4+2]-annulations: access to tetracyclic indole scaffolds
作者:Jun-An Xiao、Hai Peng、Jin-Shao Liang、Ru-Fang Meng、Wei Su、Qi Xiao、Hua Yang
DOI:10.1039/d1cc05658a
日期:——
Regiodivergent formal [5+2]- and [4+2]-annulation reactions of indole derivatives with 2-(2-alkynyl)aryl cyclopropane-1,1-diesters (ACPs) have been developed. A series of tetracyclic indole derivatives were delivered in a 77% average yield with excellent regioselectivities enabled by Au(I)/Sc(III) bimetallic relay catalysis. A gram-scale reaction and further transformation of the resulting tetracyclic
已经开发了吲哚衍生物与 2-(2-炔基) 芳基环丙烷-1,1-二酯 (ACP) 的区域发散形式 [5+2]-和 [4+2]-环化反应。一系列四环吲哚衍生物以 77% 的平均产率交付,并通过 Au( I )/Sc( III ) 双金属继电器催化实现了优异的区域选择性。由此产生的四环吲哚的克级反应和进一步转化证明了该协议的实际效用。此外,还研究了所得多环化合物的光物理性质。