Hydrative syntheses of amides from alkynes catalyzed by an Au(I) complex containing pyridyl-functionalized NHC ligand
作者:Kuldeep Singh、Nilay Kumar Pal、Chirajyoti Guha、Jitendra K. Bera
DOI:10.1016/j.jorganchem.2019.02.011
日期:2019.4
the ligand scaffold is synthesized and its catalytic efficacy for the direct synthesis of the amide fromalkyne and sodium azide in acidic water is evaluated. Catalyst 1 readily converts a wide range of internal and terminalalkynes to the corresponding amides with low catalyst loading in TFA/DCE (2 mL, 1:1 v/v) at room temperature in short reaction time (2h) and without the use of Ag(I) additive. A
合成了在配体骨架上带有吡啶基的Au(I)-NHC络合物[L 1 AuBr](1),并评估了其在酸性水中由炔烃和叠氮化钠直接合成酰胺的催化效果。催化剂1在TFA / DCE(2 mL,1:1 v / v)中催化剂负载量低的情况下,很容易将各种内部和末端炔烃转化为相应的酰胺)在室温下以较短的反应时间(2 h)进行,并且不使用Ag(I)添加剂。不含吡啶基片段的相关催化剂显示出明显较低的活性,说明了启动子配体对水活化的作用。机理研究表明,炔烃最初会水合成酮,然后进行Schmidt反应生成酰胺。
The Reaction between Duroquinone and Sodium Malonic Esters. II. The Synthesis and Reactions of 2,5-Dimethoxy-3,4,6-trimethylbenzaldehyde
作者:Lee Irvin Smith
DOI:10.1021/ja01317a062
日期:1934.2
Rudenko, A. P., Russian Journal of Organic Chemistry, 1994, vol. 30, # 12, p. 1946 - 1980
作者:Rudenko, A. P.
DOI:——
日期:——
Orton; King, Journal of the Chemical Society, 1911, vol. 99, p. 1188
作者:Orton、King
DOI:——
日期:——
CCCCLVII.—The inhibitory effect of substituents in chemical reactions. Part II. The reactivity of the isothiocyano-group in substituted arylthiocarbimides