Formation of 1,2-Dihydroquinoline-3-carboxylic Acid Derivatives from Methyl 3-(Arylamino)acrylates with Hydrogen Iodide
作者:Shoji Matsumoto、Takahiro Mori、Motohiro Akazome
DOI:10.1055/s-0030-1258229
日期:2010.11
The reaction of methyl 3-(arylamino)acrylates with hydrogen iodide gave 1,2-dihydroquinoline-3-carboxylic acid derivatives at room temperature. This reaction proceeds efficiently in alcoholic solvent; bulky tert-butyl alcohol is the best solvent to give the 1,2-dihydroquinoline derivatives. It is particularly interesting that hydrogen iodide is the most efficient acid to achieve this reaction in tert-butyl
Solvent-Free Synthesis of Enamines from Alkyl Esters of Propiolic or But-2-yne Dicarboxylic Acid in a Ball Mill
作者:Achim Stolle、Rico Thorwirth
DOI:10.1055/s-0030-1261179
日期:2011.9
A solvent-free method for the addition of amines to dialkylacetylendicarboxylates or alkylpropiolates using a planetary ball mill was developed. Conversion of educts was quantitative within five minutes without use of any catalyst or base. Beside the E-/Z-isomers, no side products were formed. addition - amines - alkynes - enamines - green chemistry
Selenated NHC-Pd(II) Pincer Complex Catalyzed, Temperature-Dependent Selective Hydroamination and Oxidative Amination of Olefins: Formation of Enamine Esters and β-Amino Esters under Solvent-Free and Aerobic Conditions
作者:Charu Sharma、Sangeeta Kumari、Deepak Sharma、Avinash K. Srivastava、Raj K. Joshi
DOI:10.1021/acs.joc.3c01706
日期:2024.1.5
NHC-Pd(II) pincer catalyzed oxidative amination and hydroamination of olefins is developed under solvent-free aerobic conditions. Reaction offered a temperature-controlled synthesis of (Z)-enamine and β-amino esters to provide easy access and remarkable functional group tolerance for a variety of enamines. The developed approach renders an opportunity of scalability and flexibility, and besides this
NHC-Pd(II)钳催化烯烃氧化胺化和加氢胺化是在无溶剂有氧条件下开发的。 Reaction 提供了 ( Z )-烯胺和 β-氨基酯的温控合成,为各种烯胺提供了方便的获取和显着的官能团耐受性。所开发的方法提供了可扩展性和灵活性的机会,除此之外,产生的烯胺可以转化为许多含氮杂环,强调了其在合成和药物化学中的潜在用途。此外,这是首次报道苯胺与苯乙烯的偶联。
Palladium-assisted functionalization of olefins: a new amination of electron-deficient olefins