17355-75-8Relevant academic research and scientific papers
Synthesis and Biological Screening of Novel 5-(5-Aryl-1-phenyl-1H-pyrazol-3-yl)-3-aryl-1,2,4-oxadiazole Derivatives
Agrawal, Brijmohan R.,Farooqui, Mazahar,Khandebharad, Amol U.,Kulkarni, Pravin S.,Sarda, Swapnil R.
, p. 209 - 215 (2022/01/06)
A new series of 5-(5-aryl-1-phenyl-1H-pyrazol-3-yl)-3-aryl-1,2,4-oxadiazole (6a-o) have been synthesized by a cyclocondensation reaction of ethyl 5-(4-chlorophenyl)-1-phenyl-1H-pyrazole-3-carboxylate (3a-c) with aryl imidoxime (5a-e). The newly synthesize
La(OTf)3-catalysed one-pot synthesis of pyrazole tethered imidazo[1,2-: A] azine derivatives and evaluation of their light emitting properties
Sharma, Shubham,Paul, Avijit Kumar,Singh, Virender
supporting information, p. 684 - 694 (2020/01/31)
A facile and efficient protocol has been unfolded towards the diversity-oriented synthesis of highly fluorescent pyrazole C-3(5) tethered imidazo[1,2-a]azines via an La(OTf)3 catalysed one-pot multicomponent assembly of pyrazole carbaldehydes, 2-aminoazines and isonitriles. This present protocol offers several advantages such as multiple bond formation in a single step, low catalyst loading, short reaction time, appreciable atom economy, good functional group tolerance, scalability and easy to perform reaction conditions. The optical properties of pyrazolyl imidazo[1,2-a]azines were also studied, and they exhibited an excellent fluorescence quantum yield (ΦF up to 83%).
Discovery of 1,5-Diphenylpyrazole-3-Carboxamide Derivatives as Potent, Reversible, and Selective Monoacylglycerol Lipase (MAGL) Inhibitors
Aghazadeh Tabrizi, Mojgan,Baraldi, Pier Giovanni,Baraldi, Stefania,Ruggiero, Emanuela,De Stefano, Lucia,Rizzolio, Flavio,Di Cesare Mannelli, Lorenzo,Ghelardini, Carla,Chicca, Andrea,Lapillo, Margherita,Gertsch, Jürg,Manera, Clementina,Macchia, Marco,Martinelli, Adriano,Granchi, Carlotta,Minutolo, Filippo,Tuccinardi, Tiziano
, p. 1340 - 1354 (2018/02/17)
Monoacylglycerol lipase (MAGL) is a serine hydrolase that plays an important role in the degradation of the endocannabinoid neurotransmitter 2-arachidonoylglycerol, which is implicated in many physiological processes. Beyond the possible utilization of MA
Radical Addition of Hydrazones by α-Bromo Ketones to Prepare 1,3,5-Trisubstituted Pyrazoles via Visible Light Catalysis
Fan, Xiu-Wei,Lei, Tao,Zhou, Chao,Meng, Qing-Yuan,Chen, Bin,Tung, Chen-Ho,Wu, Li-Zhu
, p. 7127 - 7133 (2016/08/30)
A novel efficient tandem reaction of hydrazones and α-bromo ketones is reported for the preparation of 1,3,5-trisubstituted pyrazoles by visible light catalysis. In this system, the monosubstituted hydrazones show wonderful reaction activity with alkyl radicals, generated from α-bromo ketones. A radical addition followed by intramolecular cyclization affords the important pyrazole skeleton in good to excellent yields. This efficient strategy under mild conditions with wide group tolerance provides a potential approach to the 1,3,5-trisubstituted pyrazoles.
A new efficient synthesis of pyrazoles from hydrazonoyl halides and β-oxophosphonates
Sun, Aixue,Ye, Jia-Hai,Yu, Haitao,Zhang, Wenchao,Wang, Xiaolong
supporting information, p. 889 - 892 (2015/03/03)
A new practical and efficient synthesis of 1,3,5-trisubstituted pyrazoles has been developed by reacting of hydrazonoyl halides with β-oxophosphonates under mild conditions in good yields with excellent regioselectivity. This process employs an addition-elimination sequence. Wide scope, functional group compatibility has been established.
HISTONE DEACETYLASE INHIBITORS AND COMPOSITIONS AND METHODS OF USE THEREOF
-
, (2014/10/15)
Provided are certain histone deacetylase (HDAC) inhibitors of Formula I, compositions thereof, and methods of their use.
A new efficient synthesis of pyrazoles from hydrazonoyl halides and β-oxophosphonates
Sun, Aixue,Ye, Jia-Hai,Yu, Haitao,Zhang, Wenchao,Wang, Xiaolong
supporting information, p. 889 - 892 (2014/02/14)
A new practical and efficient synthesis of 1,3,5-trisubstituted pyrazoles has been developed by reacting of hydrazonoyl halides with β- oxophosphonates under mild conditions in good yields with excellent regioselectivity. This process employs an addition-elimination sequence. Wide scope, functional group compatibility has been established.
Novel antiobesity agents: Synthesis and pharmacological evaluation of analogues of Rimonabant and of LH21
Alvarado, Mario,Decara, Juan,Luque, María Jesús,Hernandez-Folgado, Laura,Gómez-Ca?as, María,Gómez-Ruiz, María,Fernández-Ruiz, Javier,Elguero, José,Jagerovic, Nadine,Serrano, Antonia,Goya, Pilar,De Fonseca, Fernando Rodríguez
, p. 1708 - 1716 (2013/05/09)
Searching for novel antiobesity agents, a series of cannabinoid LH21 and of Rimonabant-fatty acid amide analogues have been prepared. Synthesis of pyrazoles 2a-2c was achieved by a two steps simple methodology via α,β-unsaturated ketones. Carboxamides 8a-8h were obtained in good yields from esters 7a-7c by a one-pot procedure which takes place under mild conditions. New compounds have been evaluated in vivo as anorectic agents. Some of them showed interesting properties reducing food intake in rats by a mechanism which does not involve the endocannabinoid system.
'One-pot' synthesis of 4-substituted 1,5-diaryl-1H-pyrazole-3-carboxylates via lithium tert-butoxide-mediated sterically hindered Claisen condensation and Knorr reaction
Jiang, Jian-An,Huang, Wei-Bin,Zhai, Jiao-Jiao,Liu, Hong-Wei,Cai, Qi,Xu, Liu-Xin,Wang, Wei,Ji, Ya-Fei
, p. 627 - 635 (2013/07/25)
A concise 'one-pot' synthesis of a variety of 4-substituted 1,5-diaryl-1H-pyrazole-3-carboxylates has been developed in moderate to good yields with excellent regioselectivity. Less cost lithium tert-butoxide has been identified as a base for sterically hindered Claisen condensation to efficiently generate the labile 3-substituted 4-aryl-2,4-diketoesters. Furthermore, extensive studies lead to a 'one-pot' process by combination of the Claisen condensation and the Knorr reaction for the synthesis of highly valuable 4-substituted 1,5-diaryl-1H-pyrazole-3-carboxylates.
Synthesis of bromodifluoromethyl substituted pyrazoles and isoxazoles
Yang, Xueyan,Shui, Shengxia,Chen, Xi,He, Hai'ou,Wu, Fanhong
experimental part, p. 426 - 432 (2010/04/23)
Bromodifluoromethyl substituted β-diketone 3a-3d, prepared from corresponding ketones and ethyl bromodifluoroactate in the presence of sodium methoxide, reacted with aryl hydrazine derivatives affording bromodifluoromethyl substituted pyrazoles in high re
