78588-03-1Relevant academic research and scientific papers
Palladium-catalyzed carbonylative synthesis of 3-arylquinolin-2(1H)-ones from benzyl chlorides and o-nitrobenzaldehydes
Hou, Chen-Yang,Liu, Jian-Li,Qi, Xinxin,Wu, Xiao-Feng
, (2021/09/02)
A palladium-catalyzed carbonylative cyclization of benzyl chlorides with o-nitrobenzaldehydes has been developed for the synthesis of 3-arylquinolin-2(1H)-ones. Mo(CO)6 played a dual role as both a CO surrogate and a reductant in this carbonylative transformation.
Palladium-Catalyzed Reductive Aminocarbonylation of Benzylammonium Triflates with o-Nitrobenzaldehydes for the Synthesis of 3-Arylquinolin-2(1 H)-ones
Liu, Yongzhu,Qi, Xinxin,Wu, Xiao-Feng
, p. 13824 - 13832 (2021/10/12)
A palladium-catalyzed straightforward procedure for the synthesis of 3-arylquinolin-2(1H)-ones has been developed. The synthesis proceeds through a palladium-catalyzed reductive aminocarbonylation reaction of benzylic ammonium triflates with o-nitrobenzaldehydes, and a wide range of 3-arylquinolin-2(1H)-ones was obtained in moderate to good yields with very good functional group compatibility.
Preparation method of 3-aryl quinoline-2 (1H) ketone derivative
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Paragraph 0032-0040, (2021/07/01)
The invention discloses a preparation method of a 3-aryl quinoline-2 (1H) ketone derivative. The method comprises the following steps: carrying out a reaction on palladium acetate, S)-1, 1'-binaphthyl-2, 2'-diphenylphosphine, carbonyl molybdenum, triethylamine, water, benzisoxazole and a benzyl chloride compound at 100 DEG C for 26 hours, and after the reaction is completed, carrying out post-treatment to obtain the 3-aryl quinoline-2 (1H) ketone derivative. According to the preparation method, benzisoxazole is used as a nitrogen source and a formyl source, the operation is simple, the reaction initial raw materials are cheap and easy to obtain, the tolerance range of substrate functional groups is wide, and the reaction efficiency is high; and various 3-aryl quinoline-2 (1H) ketone derivatives can be synthesized according to actual needs, and the practicability of the method is widened while the operation is convenient.
Palladium-catalyzed carbonylative cyclization of benzyl chlorides with anthranils for the synthesis of 3-arylquinolin-2(1: H)-ones
Liu, Jian-Li,Xu, Ren-Rui,Wang, Wei,Qi, Xinxin,Wu, Xiao-Feng
, p. 3584 - 3588 (2021/05/04)
An efficient carbonylative procedure for the synthesis of 3-arylquinoin-2(1H)-ones has been established. Through a palladium-catalyzed aminocarbonylation of benzyl chlorides with anthranils, a variety of 3-arylquinoin-2(1H)-one products were obtained in moderate to excellent yields with good functional group tolerance. This journal is
Supported Palladium Nanoparticles-Catalyzed Synthesis of 3-Substituted 2-Quinolones from 2-Iodoanilines and Alkynes Using Oxalic Acid as C1 Source
Thakur, Vandna,Sharma, Ajay,Yamini,Sharma, Nishtha,Das, Pralay
supporting information, p. 426 - 431 (2018/12/13)
3-Aryl/alkyl-2-quinolones were synthesized employing microwave assisted multicomponent reaction of 2-iodoanilines, terminal alkynes and oxalic acid dihydrate ((CO2H)2 ? 2H2O) under polystyrene supported palladium (Pd@PS) nanoparticles-catalyzed conditions. The use of a heterogeneous palladium catalyst was explored first time for 2-quinolone synthesis involving carbonylation reaction employing (CO2H)2 ? 2H2O as a solid and bench stable carbon monoxide (CO) source. The reaction exhibited good substrate generality for 2-iodoanilines and alkynes with wide functional group tolerance and good regio-selectivity. The ligand free operation, recyclability of heterogeneous Pd@PS catalyst and use of bench stable C1 source are the invaluable merits of the protocol. (Figure presented.).
Synthesis of 3-substituted quinolin-2(1H)-ones via the cyclization of o-alkynylisocyanobenzenes
Charoenpol, Ailada,Meesin, Jatuporn,Khaikate, Onnicha,Reutrakul, Vichai,Pohmakotr, Manat,Leowanawat, Pawaret,Soorukram, Darunee,Kuhakarn, Chutima
, p. 7050 - 7054 (2018/10/17)
A facile synthesis of various functionalized 3-substituted quinolin-2(1H)-ones through Ag(i) nitrate-catalyzed cyclization of o-alkynylisocyanobenzenes is described. The reaction allows rapid and convenient access to 3-substituted quinolin-2(1H)-one scaffolds in moderate to good yields.
Base catalysed intermolecular cyclisation of N-protected o-amino benzaldehyde/acetophenone with phosphorus/sulphur based allenes: facile synthesis of substituted quinolines
Anitha, Mandala,Gangadhararao,Kumara Swamy
, p. 3591 - 3602 (2016/04/19)
Reaction of N-Bz protected o-aminobenzaldehyde or acetophenone with allenylphosphonates in the presence of a simple base leads to quaternary carbon substituted phosphono-quinolines which undergo thermal rearrangement to O-phosphorylated quinolines. The pr
Regioselective α-arylation of coumarins and 2-pyridones with phenylhydrazines under transition-metal-free conditions
Chauhan, Parul,Ravi, Makthala,Singh, Shikha,Prajapati, Prashant,Yadav, Prem P.
, p. 109 - 118 (2016/01/09)
A facile regioselective metal-free direct α-arylation of coumarins and 2-pyridones is achieved by the reaction of coumarins and 2-pyridones with phenylhydrazine in good yields. The reaction proceeds at room temperature under mild conditions using inexpensive reagents and without the need for step intensive activating groups. The methodology is operationally simple, practically viable and also allows the coupling of similar nitrogen heterocycle aza-coumarins without prerequisite N-protection.
Substituted quinolinone-alkanecarboxylic acids and medicaments containing them, having a hyperglycaemic action
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, (2008/06/13)
Quinolinone-alkanecarboxylic acids of the formula I STR1 wherein R1, R2 and R3 are identical or different and denote hydrogen atom, a halogen atom, a hydroxyl group, an alkoxy group with 1 to 4 carbon atoms, an amino group
