1121-47-7Relevant articles and documents
Copper(ii)-promoted direct conversion of methylarenes into aromatic oximes
Yu, Jiatao,Lu, Ming
, p. 7397 - 7401 (2015)
A simple and efficient catalytic system for direct conversion of methylarenes into aromatic oximes has been developed, with Cu(OAc)2 as catalyst, NHPI (N-Hydroxyphthalimide) as additive, TBN (tert-butyl nitrite) as both the nitrogen source and the oxidant. This process proceeds under mild conditions, tolerates a wide range of substrates, affording the targeted aromatic oximes in 63-86% yields.
Synthesis of Novel 3-aryl-1-oxa-2,8-diazaspiro[4.5]dec-2-ene Derivatives and Their Biological Evaluation Against Protein Tyrosine Phosphatase 1B
Wang, Wen-Long,Chen, Xia,Gao, Li-Xin,Sheng, Li,Li, Jing-Ya,Li, Jia,Feng, Bainian
, p. 1161 - 1167 (2015)
A series of novel 3-aryl-1-oxa-2,8-diazaspiro[4.5]dec-2-ene derivatives were designed, synthesized, and evaluated as a new class of inhibitors against protein tyrosine phosphatase 1B. Among them, compound 6f displayed moderate inhibitory activity with IC50 of 2.87 ± 0.24 μm and can be used as a novel lead compound for the design of inhibitors of protein tyrosine phosphatase 1B. A series of novel 3-aryl-1-oxa-2,8-diazaspiro[4.5]dec-2-ene derivatives were designed, synthesized, and evaluated as a new class of inhibitors against PTP1B. Among them, compound 6f displayed moderate inhibitory activity with IC50 of 2.87 ± 0.24 μm and can be used as a novel lead compound for the design of inhibitors of PTP1B.
Formation of C-O bond via cross-dehydrogenative coupling between isochroman and oxime under metal-free oxidation conditions
He, Hua-Feng,Wang, Kai,Xing, Bo,Sheng, Guorong,Ma, Tingxuan,Bao, Weiliang
, p. 211 - 214 (2013)
DDQ-mediated C-O bond formation through cross-dehydrogenative coupling (CDC) reaction without any metal catalyst under mild conditions was developed. Series of isochromans and oximes could be employed as substrates, and the products were obtained in good yields. Georg Thieme Verlag Stuttgart New York.
Some furfural derivatives as nitrification inhibitors
Datta,Walia,Parmar
, p. 4726 - 4731 (2001)
Three series of furfural derivatives, namely N-O-furfural oxime ethers, furfural Schiff bases (furfurylidene anilines), and furfural chalcones, have been synthesized and evaluated for nitrification inhibition activity in laboratory incubation studies in typic Ustocrept soil. Furfural oxime ethers and furfural Schiff bases showed potential activity, but furfural chalcones were only mildly active. N-O-ethyl furfural oxime among the oxime ethers, and furfurylidine-4-chloroaniline among the furfural Schiff bases, performed the best. These two compounds showed more than 50% nitrification inhibition on the 45th day at 5% dose as compared to 73% inhibition by nitrapyrin. Activity of furfural oxime ethers decreased with an increase in carbon atoms in the N-O-alkyl side chain. Introduction of a chlorine atom in the phenyl ring of furfurylidene anilines increased the persistence of their activity. N-O-Ethyl furfural oxime and furfurylidine-4-chloroaniline coated urea performed at par with their application in solution form. Ethyl and N-O-isopropyl oxime, as well as chloro- and nitro-substituted Schiff bases, did not reveal any phytotoxicity (adverse effect on germination) on chickpea seeds (Cicer arietinum) even at the highest dose (40 ppm, soil basis).
Novel design of recyclable copper(II) complex supported on magnetic nanoparticles as active catalyst for Beckmann rearrangement in poly(ethylene glycol)
Keyhaniyan, Mahdi,Shiri, Ali,Eshghi, Hossein,Khojastehnezhad, Amir
, (2018)
Copper complex-functionalized magnetic core–shell nanoparticles (Fe3O4@SiO2-Lig-Cu) were prepared and characterized using various techniques. The activity of the new catalyst was tested for the Beckmann rearrangement. The reaction conditions allow for the conversion of a wide variety of aldoximes, including aromatic and heterocyclic ones, to amides in good to excellent yields. High efficiency, mild reaction conditions, easy work-up, use of poly(ethylene glycol) as a green medium and simple purification of products are important advantages of this system. Moreover, the eco-friendly heterogeneous nanocatalyst could be easily recovered from the reaction mixture using an external magnet and reused several times.
Preparation method O - alkyl substituted hydroxylamine salt
-
Paragraph 0128; 0134-0137, (2021/11/14)
The invention relates to a preparation method of N - alkyl substituted hydroxylamine salt, and belongs to fine chemical engineering. Pesticide or bulk pharmaceutical chemicals technical field. The present invention reacts with the N - alkyl of the oxime with an inorganic salt of hydroxylamine to give N - alkyl-substituted hydroxylamine salt and oxime. The invention provides an efficient and environment-friendly method for preparing N - alkyl substituted hydroxylamine salt, and simultaneously, an N - alkyl substituted hydroxylamine salt is prepared, and the oxime can be re-prepared to form N - alkylate of oxime so as to realize the material circulation. No equivalent acid is used in the reaction process. Alkali neutralization, avoided the current method to use a large amount of acid, alkali and produce inorganic salt solid waste shortcoming, environmental protection more. The preparation method is mild in reaction condition, and the defects of high pollution and high energy consumption of the traditional process are overcome. In-flight R1 , R2 What is R is as claimed in the claims and the description.
One-Pot Regioselective Synthesis of 7-Bromo-2H-Benzo[b][1,4]Oxazin-3(4H)-One Linked Isoxazole Hybrids as Anti-Cancer Agents and Their Molecular Docking Studies
Karthik, B.,Kumar, A. Kannan,Nukala, Satheesh Kumar,Ravinder, M.,Swamy, T. Narasimha
, p. 1269 - 1275 (2021/12/23)
Abstract: Regioselective synthesis of some novel 7-bromo-2H-benzo[b][1,4]oxazin-3(4H)-one linked isoxazole hybrids via copper(I) catalyzed one-pot reaction of various aromatic aldehydes with 7-bromo-4-(prop-2-yn-1-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one was developed. The structures of the compounds that are synthesized are confirmed by 1H NMR, 13C NMR, and mass spectra. All the hybrids have been tested for their in vitro anticancer activity against four human cancer cell lines, including HeLa, MCF-7, A549, and PC3. Three of the compounds exhibited remarkable anticancer activity compared to standard drug etoposide. Molecular docking studies with EGFR also strengthened the in vitro anticancer activity.