Radical Benzylation of Quinones via C–H Abstraction
作者:Jordan D. Galloway、Duy N. Mai、Ryan D. Baxter
DOI:10.1021/acs.joc.9b01004
日期:2019.9.20
Herein we report the development of radical benzylation reactions of quinones using Selectfluor and catalytic Ag(I) initiators. The reaction is believed to proceed via a C–H abstraction mechanism after Ag(I)-mediated reduction of Selectfluor. This reaction occurs under mild conditions and is effective for a variety of quinones and radical precursors bearing primary benzylic carbons. The use of preformed
本文中,我们报道了使用Selectfluor和催化Ag(I)引发剂对醌进行的自由基苄基化反应的发展情况。在Ag(I)介导的Selectfluor还原后,该反应被认为是通过C–H抽象机制进行的。该反应在温和的条件下发生,并且对于各种带有伯苄基碳的醌和自由基前体是有效的。事实证明,使用预制的Ag(4-OMePy)2 NO 3作为催化剂,可通过减少Selectfluor可利用的不需要的降解途径来有效提高反应效率。
Transition-metal-free cross-dehydrogenative alkylation of pyridines under neutral conditions
作者:Xin Li、Hao-Yuan Wang、Zhang-Jie Shi
DOI:10.1039/c3nj00095h
日期:——
A mild and efficient method has been developed for the direct dehydrogenative alkylation of unprotonated pyridine derivatives. The avoidance of using acids and transition-metals makes this protocol “greener” and more practical for the synthesis of substituted pyridines.
PROTEOMIMETIC COMPOUNDS AS INHIBITORS OF THE INTERACTION OF NUCLEAR RECEPTOR WITH COACTIVATOR PEPTIDES
申请人:Hamilton Andrew
公开号:US20090220586A1
公开(公告)日:2009-09-03
The present invention relates to compounds, pharmaceutical compositions and methods which inhibit the binding of coactivator proteins in nuclear receptors, including estrogen receptors (alpha and/or beta), androgen receptors, thyroid receptors and peroxisome proliferators-activated receptors, among others. Compounds according to the present invention may be useful in the treatment of a variety of disease states or conditions which are mediated through nuclear receptors.
Proteomimetic compounds as inhibitors of the interaction of nuclear receptor with coactivator peptides
申请人:Yale University
公开号:US08084471B2
公开(公告)日:2011-12-27
The present invention relates to compounds, pharmaceutical compositions and methods which inhibit the binding of coactivator proteins in nuclear receptors, including estrogen receptors (alpha and/or beta), androgen receptors, thyroid receptors and peroxisome proliferators-activated receptors, among others. Compounds according to the present invention may be useful in the treatment of a variety of disease states or conditions which are mediated through nuclear receptors.
Simple and readily available alkyl sulfoxides are shown to be suitable precursors to radicals. Alkyl sulfoxides, N-methoxy pyridinium salts and fluoride anions form electron donor–acceptor (EDA) complexes, which, upon visible-light irradiation, undergo a radical chain process to give various pyridine derivatives.