a variety of novel peptide derivatives for chemical biology studies and potential pharmaceutical applications. The catalytic system tolerates a variety of functional groups including secondary amides, ester, nitrile, thiomethyl, and hydroxy groups. This convenient hydrosilylation reaction proceeds at ambient conditions and is operationally safe because no air‐sensitive reagents or highly reactive metal
Rhoda‐Electrocatalyzed Bimetallic C−H Oxygenation by Weak
<i>O</i>
‐Coordination
作者:Xuefeng Tan、Leonardo Massignan、Xiaoyan Hou、Johanna Frey、João C. A. Oliveira、Masoom Nasiha Hussain、Lutz Ackermann
DOI:10.1002/anie.202017359
日期:2021.6.7
Rhodium-electrocatalyzed arene C−Hoxygenation by weakly O-coordinating amides and ketones have been established by bimetallic electrocatalysis. Likewise, diverse dihydrooxazinones were selectively accessed by the judicious choice of current, enabling twofold C−H functionalization. Detailed mechanistic studies by experiment, mass spectroscopy and cyclovoltammetric analysis provided support for an unprecedented
Herein, we describe the development of mechanochemical amino- and oxycarbonylation employing FeBr2(CO)4 as a solid CO source. This Pd/XantPhos-catalyzed reaction affords a range of carboxamides and esters from aryl iodides and various amines or phenols. Both primary and secondary amines, including amino acids, can be employed as N-nucleophiles.
在此,我们描述了使用 FeBr 2 (CO) 4作为固体 CO 源的机械化学氨基和氧羰基化的发展。这种 Pd/XantPhos 催化的反应由芳基碘化物和各种胺或酚生成一系列甲酰胺和酯。伯胺和仲胺,包括氨基酸,都可以用作N-亲核试剂。
Tsuji, Motonori; Kuwano, Eiichi; Saito, Tetsuya, Bioscience, Biotechnology and Biochemistry, 1992, vol. 56, # 5, p. 778 - 782
Design, synthesis, and biological evaluation of novel T-Type calcium channel antagonists
作者:William F McCalmont、Tiffany N Heady、Jaclyn R Patterson、Michael A Lindenmuth、Doris M Haverstick、Lloyd S Gray、Timothy L Macdonald
DOI:10.1016/j.bmcl.2004.05.011
日期:2004.7
This paper describes the synthesis of several novel T-type calciumchannelantagonists that inhibit calcium influx into the cell, which in turn regulates unknown aspects of the cell cycle pathway that are responsible for cellular proliferation. A library of compounds was synthesized and a brief structure activity relationship will be described. From these studies we have identified a compound (1) that