SUBSTITUTED HETEROCYCLIC DERIVATIVES AND THEIR PHARMACEUTICAL USE AND COMPOSITIONS
申请人:BRICKNER Steven Jospeh
公开号:US20080280879A1
公开(公告)日:2008-11-13
Compounds of the general Formula I, wherein X
1
, X
2
, X
3
, X
4
, X
5
, X
6
, X
7
, R
1
, R
2
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, Y
1
, n, m, p and q are defined as above, their preparation and their use as antimicrobial agents.
Metal-Free sp<sup>3</sup> C-SCF<sub>3</sub> Coupling Reactions between Cycloketone Oxime Esters and <i>S</i>-trifluoromethyl 4-Methylbenzenesulfonothioate
作者:Xia Zhao、Miaomiao Tian、Liangshuo Ji、Junjie Liu、Kui Lu
DOI:10.1021/acs.orglett.9b04343
日期:2020.2.7
A novel sp3 C-SCF3 coupling reactionbetween cycloketone oxime esters and S-trifluoromethyl 4-methylbenzenesulfonothioate was achieved. Ethanol was found to facilitate this transformation by trapping the sulfonyl cation. The metal-free and photocatalyst-free reaction conditions, as well as the broad substrate scope, make this a green protocol for the synthesis of SCF3-substituted nitriles.
Visible-Light-Promoted Selenocyanation of Cyclobutanone Oxime Esters Using Potassium Selenocyanate
作者:Xia Zhao、Liangshuo Ji、Yu Gao、Tengteng Sun、Jiamin Qiao、Ankun Li、Kui Lu
DOI:10.1021/acs.joc.1c00893
日期:2021.9.3
We report the visible-light-promoted selenocyanation of cyclobutanone oxime esters using potassiumselenocyanate in the presence of a fac-Ir(ppy)3 catalyst for the first time. Because of the mild conditions employed and use of readily accessible potassiumselenocyanate, this method is an effective and green strategy for the synthesis of cyano and selenocyano bifunctional substituted alkanes.
Copper-Catalyzed Ring-Opening Defluoroborylation of <i>gem</i>-Difluorinated Cyclobutenes: A General Route to Bifunctional 1,3-Dienes and Their Applications
gem-fluorinated cyclobutenes with bis(pinacolato)diboron (B2pin2). A sequence of defluoroborylation and a ring-opening process produces B,F-bifunctional 1,3-dienes in a stereoselective manner. The transformation together with the efficient downstream coupling of the boronate and the fluoride moieties collectively constitutes a modular route to highly functionalized and stereocontrolled 1,3-dienes.
Substituted Heterocyclic Derivatives and Their Pharmaceutical Use and Compositions
申请人:Brickner Steven Joseph
公开号:US20110092480A1
公开(公告)日:2011-04-21
Compounds of the general Formula I, wherein X
1
, X
2
, X
3
, X
4
, X
5
, X
6
, X
7
, R
1
, R
2
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, Y
1
, n, m, p and q are defined as above, their preparation and their use as antimicrobial agents.