56514-76-2Relevant academic research and scientific papers
One-Pot Synthesis of 4-Quinolone via Iron-Catalyzed Oxidative Coupling of Alcohol and Methyl Arene
Lee, Seok Beom,Jang, Yoonkyung,Ahn, Jiwon,Chun, Simin,Oh, Dong-Chan,Hong, Suckchang
supporting information, p. 8382 - 8386 (2020/11/18)
Herein, we describe the iron(III)-catalyzed oxidative coupling of alcohol/methyl arene with 2-amino phenyl ketone to synthesize 4-quinolone. Alcohols and methyl arenes are oxidized to the aldehyde in the presence of an iron catalyst and di-tert-butyl peroxide, followed by a tandem process, condensation with amine/Mannich-type cyclization/oxidation, to complete the 4-quinolone ring. This method tolerates various kinds of functional groups and provides a direct approach to the synthesis of 4-quinolones from less functionalized substrates.
Palladium-catalyzed intermolecular directed C-H amidation of aromatic ketones
Xiao, Bin,Gong, Tian-Jun,Xu, Jun,Liu, Zhao-Jing,Liu, Lei
supporting information; experimental part, p. 1466 - 1474 (2011/04/16)
Pd-catalyzed directed ortho C-H amidation of aromatic ketones with both sulfonamides and amides has been accomplished. The use of an electron-deficient Pd complex, Pd(OTf)2, is crucial for the success of this transformation. Some key intermediates of the reaction, that is, the cyclopalladation complexes of ketones, have been characterized by X-ray crystallography. Experimental analysis of these palladacycles and also the experimental results with N-methyl sulfonamides indicate that the new reaction does not seem to proceed through a nitrene intermediate. The utility of the newly developed reaction was demonstrated for the synthesis of useful organic intermediates such as 2- and 3-alkyl indoles and 2-aminophenyl ketones.
New carboxylic acid amides of the pyrrole series: Synthetic routes and biological aspects
Walter, Harald
scheme or table, p. 351 - 362 (2009/01/31)
Complex II inhibitors play an important role in agrochemical fungicide research and have been known for more than 40 years. With the introduction of ortho-substituted heterocyclic amides, a breakthrough in activity level and spectrum within this class was achieved. In the meantime all major agrochemical companies have entered this field. In this paper, a special complex II subclass, the pyrrole carboxamides, will be introduced in more detail and the synthesis of selected compounds as well as a short biological SAR analysis of the pyrrole subclass will be discussed.
ISOPENTYL CARBOXANILIDES FOR COMBATING UNDESIRED MICRO-ORGANISMS
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Page/Page column 57-58, (2008/06/13)
The invention relates to novel isopentyl carboxanilides of formula (I), wherein L, R1, R3 and A have the meaning cited in the description, to several methods for the production of said substances and to the use thereof in order to combat undesired micro-organisms, in addition to intermediate products and to the production thereof.
1, 3, 4-BENZOTRIAZEPIN-2-ONE SALTS AND THEIR USE AS CCK RECEPTOR LIGANDS
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Page 23, (2008/06/13)
This invention relates to pharmaceutically acceptable salts of compounds of formula (I) wherein: W is N or N+-O-; R2 is an optionally substituted C1 to C18 hydrocarbyl group wherein up to three C atoms may optionally be replaced by N, O and/or S atoms. R3 is -(CR11R12)m-X-(CR13R14)p-R9; m is 0, 1, 2, 3 or 4; p is 0, 1 or 2; X is a bond, -CR15=CR16-, -C≡C-, C(O)NH, NHC(O), C(O)NMe, NMeC(O), C(O)O, NHC(O)NH, NHC(O)O, OC(O)NH, NH, O, CO, SO2, SO2NH, C(O)NHNH, R9 is H ; C1 to C6 alkyl ; or phenyl, naphthyl, pyridyl, benzimidazolyl, indazolyl, quinolinyl, isoquinolinyl, tetrahydroisoquinolinyl, indolinyl, isoindolinyl, indolyl, isoindolyl or 2-pyridonyl substituted with -L-Q. R4 is an optionally substituted C1 to C18 hydrocarbyl group wherein up to three C atoms may optionally be replaced by N, O and/or S atoms ; and Such salts are useful, for example, for the treatment of gastrin related disorders.
