Synthesis of Quinolines via Rh(III)-Catalyzed Oxidative Annulation of Pyridines
作者:Guoyong Song、Xue Gong、Xingwei Li
DOI:10.1021/jo201266u
日期:2011.9.16
Selective synthesis of quinolines has been achieved via oxidative annulation of functionalized pyridines with two alkyne molecules under Rh(III)-catalyzed cascade C–H activation of pyridines using Cu(OAc)2 as an oxidant. The selectivity of this reaction is oxidant-dependent, particularly on the anion of the oxidant.
The present invention provides a compound of the following formula, racemates, enantiomers and salts thereof. Also provided is the use of these compounds as antibacterials, compositions comprising them and processes for their manufacture.
N-Arylamides from Selenium-Catalyzed Reactions of Nitroaromatics and Amides in the Presence of Carbon Monoxide and Mixed Organic Bases
作者:Jinzhu Chen、Gang Ling、Zhengkun Yu、Sizhong Wu、Xiaodan Zhao、Xiaowei Wu、Shiwei Lu
DOI:10.1002/adsc.200404077
日期:2004.9
N-Arylamides were exclusively obtained in moderate to good yields from selenium-catalyzed reactions of nitroaromatics with amides in the presence of CO and mixed organicbases Et3N and DBU.
Switching from Biaryl Formation to Amidation with Convoluted Polymeric Nickel Catalysis
作者:Abhijit Sen、Raghu N. Dhital、Takuma Sato、Aya Ohno、Yoichi M. A. Yamada
DOI:10.1021/acscatal.0c03888
日期:2020.12
and we confirmed that it is consistent with Ni K-edge EXAFS. The Suzuki–Miyaura-type coupling of aryl halides and arylboronicesters proceeded using P4VP-NiCl2 (0.1 mol % Ni) to give the corresponding biaryl compounds in up to 94% yield. Surprisingly, when the same reaction of aryl halides and arylboronicacid/ester was carried out in the presence of amides, the amidation proceeded predominantly to
Efficient conversion of acids and esters to amides and transamidation of primary amides using OSU-6
作者:Baskar Nammalwar、Nagendra Prasad Muddala、Field M. Watts、Richard A. Bunce
DOI:10.1016/j.tet.2015.10.016
日期:2015.12
with strong Bronsted acid properties, has been used to promote the high-yield conversion of carboxylic acids and esters to carboxamides as well as transamidations of primary amides in a one-pot solventless approach. A metal-free heterogeneous catalyst that promotes all of these processes has not been previously reported. OSU-6 enables these transformations to proceed in shorter times and at lower temperatures