conventional two-step methods. Nonoxidative and noncoupling reaction conditions have been developed for the synthesis of N-(diphenylmethyl)- and N-(1-adamantyl)amide derivatives directly from aldehydes by employing the concept of a Schmidt and Ritter reaction sequence in a one-pot operation. The reagent mixture consisting of sodium azide and HBF4·OEt2 in acetic acid converts the aldehydes into their respective
Rh(<scp>iii</scp>)-catalyzed direct C–H/C–H cross-coupling of quinones with arenes assisted by a directing group: identification of carbazole quinones as GSKβ inhibitors
作者:Youngtaek Moon、Yujeong Jeong、Daehyuk Kook、Sungwoo Hong
DOI:10.1039/c4ob02624a
日期:——
Rh-catalyzed direct cross-coupling of various (hetero)arenes with quinones is developed. This protocol is effective for a broad range of substrates and a wide range of directing groups.
铑催化的直接交叉偶联反应可将各种(杂)芳烃与醌进行偶联。该方案适用于广泛的底物和多种取向基团。
Microwave assisted, Ca(II)-catalyzed Ritter reaction for the green synthesis of amides
An efficient solvent-free synthesis of amides by Ca(II) catalyzed Ritterreaction has been reported under microwave irradiation. This green protocol tolerates the substrate diversity and delivers the high yielding amides with minimal loading of inexpensive and more abundant Ca(II) catalyst.
Ritter reaction of organic nitriles with 1-bromo- and 1-hydroxyadamantanes catalyzed by manganese compounds and complexes
作者:R. I. Khusnutdinov、N. A. Shchadneva、Yu. Yu. Mayakova、L. F. Khisamova、U. M. Dzhemilev
DOI:10.1134/s1070428011110042
日期:2011.11
Manganese compounds and complexes [MnCl2, MnBr2, Mn(OAc)2, Mn(acac)2, Mn(acac)3, Mn2(CO)10] catalyze Ritter reaction of organic nitriles with 1-bromo- and 1-hydroxyadamantanes. The reaction proceeds in water environment in the absence of acids at 100–130°C over 3–5 h and affords N-(adamantan-1-yl)amides in 75–100% yields.
作者:Dmitry M. Rudkevich、Göran Hilmersson、Julius Rebek
DOI:10.1021/ja982970g
日期:1998.12.1
upper rim of the structure 2a−e; the amide CO...H−N interactions bridge adjacent ringsinterannular bindingand are held in place by the seven-membered intraannular hydrogen bonds. The self-folding in 2a−e is reversibly controlled by solvent and temperature. Complexation of self-folding cavitands 2a−e with organic molecules such as (1-substituted) adamantanes, lactams, and cyclohexane derivatives was demonstrated