Synthesis and Characterization of Isomeric Methylphenylisoxazole-4-carboxylic Acids

1962 ◽  
Vol 27 (12) ◽  
pp. 4305-4309 ◽  
Author(s):  
Allan A. Hydorn ◽  
Francis A. McGinn ◽  
James R. Moetz ◽  
Joseph Schwartz
Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 955 ◽  
Author(s):  
Javier Francos ◽  
María Esther Moreno-Narváez ◽  
Victorio Cadierno ◽  
Diego Sierra ◽  
Katherine Ariz ◽  
...  

The synthesis and characterization of novel gold(I) complexes containing hydrophilic ferrocenylphosphino sulfonate ligands, i.e., compounds [AuCl{(η5-C5H3PR2(SO3iPr))Fe(η5-C5H5)}] (R = Ph (2a), p-Tol (2b), Cy (2c)), are presented, including a single-crystal X-ray diffraction study on 2a. Complexes 2a–c were checked as catalysts for the intermolecular addition of carboxylic acids to nonactivated internal alkynes using water as a green reaction medium. The best results in terms of activity were obtained with 2a in combination with AgOAc, which was able to promote the selective anti addition of a variety of aromatic, aliphatic, and α,β-unsaturated carboxylic acids to both symmetrical and unsymmetrical internal alkynes at 60 °C, employing metal loadings of only 2 mol %.


2016 ◽  
Vol 4 (12) ◽  
pp. 2095-2100
Author(s):  
Dr.Bhanu Raman ◽  
◽  
JunedMunir Shaikh. ◽  

Synlett ◽  
2017 ◽  
Vol 29 (05) ◽  
pp. 556-559 ◽  
Author(s):  
Tetsuaki Fujihara ◽  
Yasushi Tsuji ◽  
Motoi Satou ◽  
Jun Terao

Carboxylic acids 1a and 1b bearing three poly(ethylene glycol) (PEG) chains and carboxylic acid 1c bearing one PEG chain were designed and synthesized. The carboxylic acids 1a–c were fully characterized by NMR and ESI-HRMS analyses. In a Pd-catalyzed aerobic oxidation of 1-phenylethanol, 1a and 1b worked well as carboxylate ligands.


2018 ◽  
Vol 34 (4) ◽  
pp. 2131-2136 ◽  
Author(s):  
Abdullah Jawad Kadhim ◽  
Ali Chazi Kazim

This research paper deals with the synthesis and diagnose of Benzimidazole rings which were have been prepared by using two different methods in which used starting material o-phenylenediamine with different compounds. The first method is with aldehydes such as 4-Chlorobenzaldehyde, 4-N, N-Dimethylbenzaldehyde, and Formaldehyde. The second is with Carboxylic acids such as Salicylic acid, Acetic acid, and Butanoic acid. ρ-TSOH has been using as a catalyst in the synthesis methods above and used F.T.I.R and HNMR spectroscopy are used for diagnosing the prepared rings in addition to the physical properties.


2019 ◽  
Vol 85 (4) ◽  
pp. 2321-2337 ◽  
Author(s):  
Volodymyr V. Semeno ◽  
Vadym O. Vasylchenko ◽  
Bohdan V. Vashchenko ◽  
Dmytro O. Lutsenko ◽  
Rustam T. Iminov ◽  
...  

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