90490-62-3Relevant academic research and scientific papers
CH3CO2H-prompted three components tandem reaction: An efficient and practical approach to trisubstituted pyrrolo[1,2-a]pyrazines
Chu, Xianglong,Zhang, Zeyuan,Wang, Congcong,Chen, Xuan,Wang, Bin,Ma, Chen
, p. 7185 - 7189 (2017)
An efficient protocol for the synthesis of trisubstitued pyrrolo[1,2-a]pyrazines through three components cyclization and one-pot cascade reaction is presented. Various trisubstitued pyrrolo[1,2-a]pyrazines are obtained by this metal-free process in moder
Sequential one-pot three component rhodium-catalysed isomerisation/1,3- dipolar cycloaddition cascades to fused-ring heterocycles
Windle, Jonathan,Allison, Matthew,Shepherd, Helena,Sridharan, Visuvanathar
, p. 2624 - 2627 (2014)
One-pot three component rhodium-catalysed isomerisation/1,3-dipolar cycloaddition cascades to fused ring heterocycles with formation of three new bonds and four stereo centres occurred in good yields.
Asymmetric transfer hydrogenation of heterocycle-containing acetophenone derivatives using N-functionalised [(benzene)Ru(II)(TsDPEN)] complexes
Barrios-Rivera, Jonathan,Xu, Yingjian,Clarkson, Guy J.,Wills, Martin
supporting information, (2021/12/02)
The application of enantiomerically-pure ruthenium(II) catalysts containing N - functionalised TsDPEN ligand to the asymmetric transfer hydrogenation of 15 examples of α-heterocyclic acetophenone derivatives is reported. Products of up to 99% ee were formed.
Pyrrolyl group-containing compound, polymer, mixture, composition, and organic electronic device
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Paragraph 0200-0205, (2020/11/26)
The invention discloses a pyrrolyl-containing compound, a high polymer, a mixture, a composition and an organic electronic device. The pyrrolyl-containing compound contains a structure represented bya general formula (1), forms a condensed ring with other functional units through a pyrrolyl group, and is adjusted in the aspects of molecular stability and transmission performance. The pyrrolyl-containing compound disclosed by the invention is used in an OLED, particularly used as a light emitting layer material, and can provide higher device performance.
Palladium-Catalyzed Enantioselective Decarboxylative Allylic Alkylation of Acyclic α- N-Pyrrolyl/Indolyl Ketones
Alexy, Eric J.,Lavernhe, Remi,Stoltz, Brian M.,Zhang, Haiming
supporting information, (2020/06/05)
The synthesis of fully substituted α-N-pyrrolyl and indolyl ketones via enantioselective palladium-catalyzed allylic alkylation is described. The acyclic ketones are alkylated in high yields with high enantioselectivities through the use of an electron-deficient phosphinooxazoline ligand, furnishing a highly congested and synthetically challenging stereocenter. The obtained alkylation products contain multiple reactive sites poised for additional functionalizations and diversification.
Synthesis of functionalized indolizines: Via gold(i)-catalyzed intramolecular hydroarylation/aromatization of pyrrole-ynes
Li, Xiangdong,Zhao, Jidong,Xie, Xin,Liu, Yuanhong
, p. 8119 - 8133 (2017/10/10)
A gold-catalyzed intramolecular hydroarylation/aromatization of pyrrole-ynes has been developed. This method provides a concise and straightforward route to functionalized indolizines through the construction of the pyridine ring of indolizines and also allows elaboration of its pyrrole moiety with or without functional groups. In addition, a wide variety of functional groups, such as aryl, alkenyl, alkynyl, pyridyl or thienyl groups, can be easily incorporated into the pyridine unit of the indolizine products under mild conditions. The utility of the indolizine products was demonstrated by their efficient transformations into various C3-functionalized indolizine derivatives.
Synthesis of (Z)-N-alkenylazoles and pyrroloisoquinolines from α-N-azoleketones through Pd-catalyzed tosylhydrazone cross-couplings
Florentino, Lucia,Aznar, Fernando,Valdes, Carlos
supporting information, p. 10506 - 10510 (2013/08/23)
Azoles reacting in tandem: The ortho-stereodirecting effect is the key to the stereoselective synthesis of (Z)-N-alkenylazoles I through the tosylhydrazide-mediated Pd-catalyzed cross-coupling reaction of α-N-azoleacetophenones with ortho-substituted aryl halides and nonaflates (see scheme). Additionally, the preorganization of the alkene allowed for the development of an auto-tandem reaction involving an intramolecular C-H arylation leading to pyrroloisoquinolines II. Copyright
Debenzotriazolylation of α-benzotriazolyl ketones with samarium diiodide
Katritzky, Alan R.,Wang, Junquan,Henderson, Scott A.
, p. 1567 - 1574 (2007/10/03)
Removal of the benzotriazolyl moiety of α-benzotriazolyl ketones by samarium diiodide at room temperature to give the corresponding ketones in good yields is described.
