89976-43-2Relevant academic research and scientific papers
Photoinduced Cross-Coupling of Aryl Iodides with Alkenes
Liu, Yuliang,Li, Haoyu,Chiba, Shunsuke
, p. 427 - 432 (2021/01/26)
A protocol for photoinduced cross-coupling of aryl iodides having polar π-functional groups or elongated π-conjugation with alkenes has been developed. The radical cascade mechanism involving generation of aryl radicals via C-I bond homolysis of photoexcited aryl iodides and their subsequent addition to alkenes is proposed. The method enables iodide-selective cross-coupling over other halogen leaving groups with functional group compatibility on both arene and alkene motifs.
Structural optimization of natural product fusaric acid to discover novel T3SS inhibitors of Salmonella
Li, Chaoqun,Li, Zhiying,Lu, Chunhua,Shen, Yuemao,Song, Yuliang,Xu, Guangsen
, p. 72 - 76 (2021/10/27)
Type III secretion system (T3SS) plays a critical role in host cell invasion and pathogenesis of Salmonella. We recently identified the mycotoxin fusaric acid (FA) as a T3SS inhibitor of Salmonella. Herein, twenty-two diphenylsulfane derivatives were desi
The Pd-catalyzed synthesis of difluoroethyl and difluorovinyl compounds with a chlorodifluoroethyl iodonium salt (CDFI)
Cao, Chengyao Kimmy,Chen, Chao,Ge, Chenxin,Niu, Yaru,Qu, Hongmei
supporting information, (2021/10/01)
Herein, we report a simple and efficient method for the direct installation of chlorodifluoroethyl group onto aromatic molecules of various aromatic amides with a new 2-chloro,2,2-difluoroethyl(mesityl)iodonium salt (CDFI). Moreover, the chlorodifluoroeth
Rhenium-Catalyzed Phthalide Synthesis from Benzamides and Aldehydes via C-H Bond Activation
Jia, Bing,Yang, Yunhui,Jin, Xiqing,Mao, Guoliang,Wang, Congyang
, p. 6259 - 6263 (2019/09/06)
The [4 + 1] annulation of benzamides and aldehydes for phthalide synthesis was achieved via rhenium-catalyzed C-H activation, which demonstrates an unprecedented reaction pattern distinct from those of other transition-metal catalyses. The reaction also features readily available starting materials, a wide scope for both electro-rich and electro-deficient substrates, and the elimination of homoannulation byproducts.
Chemoselective Synthesis of Aryl Ketones from Amides and Grignard Reagents via C(O)-N Bond Cleavage under Catalyst-Free Conditions
Sureshbabu, Popuri,Azeez, Sadaf,Muniyappan, Nalluchamy,Sabiah, Shahulhameed,Kandasamy, Jeyakumar
, p. 11823 - 11838 (2019/10/02)
Conversion of a wide range of N-Boc amides to aryl ketones was achieved with Grignard reagents via chemoselective C(O)-N bond cleavage. The reactions proceeded under catalyst-free conditions with different aryl, alkyl, and alkynyl Grignard reagents. α-Ketoamide was successfully converted to aryl diketones, while α,β-unsaturated amide underwent 1,4-addition followed by C(O)-N bond cleavage to provide diaryl propiophenones. N-Boc amides displayed higher reactivity than Weinreb amides with Grignard reagents. A broad substrate scope, excellent yields, and quick conversion are important features of this methodology.
Cobalt(III)-Catalyzed Directed C-H Allylation
Gensch, Tobias,Vásquez-Céspedes, Suhelen,Yu, Da-Gang,Glorius, Frank
supporting information, p. 3714 - 3717 (2015/08/18)
The cobalt(III)-catalyzed allylation was developed for amide-directed C-H activation of arenes, heteroarenes, and olefins. A variety of allyl sources can be employed to introduce this useful functional group.
Re/Mg bimetallic tandem catalysis for [4+2] annulation of benzamides and alkynes via C-H/N-H functionalization
Tang, Qiuzheng,Xia, Dexin,Jin, Xiqing,Zhang, Qing,Sun, Xiao-Qiang,Wang, Congyang
, p. 4628 - 4631 (2013/05/21)
A rhenium-magnesium cocatalyzed [4+2] annulation of benzamides and alkynes via C-H/N-H functionalization is described. The reaction features a divergent and high level of diastereoselectivities, which are readily switchable by subtle tuning of reaction conditions. Thus, a wide range of both cis- and trans-3,4-dihydroisoquinolinones is expediently synthesized in a highly atom-economical manner. Moreover, mechanistic studies unraveled a tandem mode of action between rhenium and magnesium in the catalytic cycles.
Cyanomethyl substituted N-Acyl Tryptamines
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Page/Page column 36, (2009/03/07)
The present invention relates to cyanomethyl substituted N-acyl tryptamines of the formula I in which R1, R2, R3, R4, R5, Q, X and W have the meaning as defined in the description. The compounds according to the invention are effective FSH antagonists and
4-Methyl-5-phenyl triazoles as selective inhibitors of 11β-hydroxysteroid dehydrogenase type I
Zhu, Yuping,Olson, Steven H.,Hermanowski-Vosatka, Anne,Mundt, Steven,Shah, Kashmira,Springer, Marty,Thieringer, Rolf,Wright, Samuel,Xiao, Jianying,Zokian, Hratch,Balkovec, James M.
scheme or table, p. 3405 - 3411 (2009/04/07)
4-Methyl-5-phenyl-(1,2,4)-triazoles were identified as selective inhibitors of 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1). They were active in vitro and in an in vivo mouse pharmacodynamic (PD) model. The synthesis and structure activity relations
Synthesis and redistribution reactions of asymmetric σ-arylplatinum(II) complexes containing 4,7-phenanthroline
Gallasch, David P.,Woodhouse, Susan L.,Rendina, Louis M.
, p. 1288 - 1294 (2007/10/03)
The mononuclear σ-aryl complexes of the type trans -[Pt(σ -C6H4R)(4,7-phen)(PPh3)2] OTf (R=4-CO2SitBuPh2, 4-CONHMe, 3-CO2SitBuPh2, 3-CONHMe; OTf=trifluoromethanesulfonate) containing a monodentate 4,7-phenanthroline (4,7-phen) ligand were prepared by an oxidative addition reaction of an aryl iodide with Pt(PPh3) 4 to yield the key iodoplatinum(II) precursors trans -[PtI(σ-C6H4R)(PPh3) 2], followed by halogen metathesis with one equivalent of 4,7-phen. The reaction of trans -[Pt(σ-C6 H4R)(4,7-phen)(PPh3)2]OTf with labile complexes of the type trans -[Pt(OTf)L2(σ -C6H4R′)] (L=PEt3, R′=H; L=PPh3, R′=4-CO2SitBuPh2 3-CO2SitBuPh2, 3-CONHMe) afforded the asymmetric dinuclear complexes of the type trans -[Pt(σ -C6H4R)L2(μ-4,7-phen)Pt(σ -C6H4R′) L′2](OTf) 2 (L=PPh3, R=4-CO2SitBuPh2, L′=PEt3, R′=H; L=L′=PPh3, R=4-CONHMe, R′ =4-CO2SitBuPh2; R=4-CO2SitBuPh2, R′=3-CONHMe; R=3-CONHMe, R′=3 -CO2SitBuPh2) in which the 4,7-phen acts as a bridging bidentate ligand. The novel dinuclear species undergo an unusual redistribution reaction that is essentially thermoneutral at 298 K. The exchange process involves facile cleavage of a Pt-N bond and the rapid exchange of trans -[PtL2(σ-aryl)] units in the equilibrium mixture.
