20782-48-3Relevant academic research and scientific papers
Concise and Additive-Free Click Reactions between Amines and CF3SO3CF3
Song, Hai-Xia,Han, Zhou-Zhou,Zhang, Cheng-Pan
supporting information, p. 10907 - 10912 (2019/08/02)
Trifluoromethyl trifluoromethanesulfonate has proved to be an excellent reservoir of difluorophosgene and a promising click ligation for amines in the preparation of urea derivatives, heterocycles, and carbamoyl fluorides under metal- and additive-free conditions. The reactions are rapid, efficient, selective, and versatile, and can be performed in benign solvents, giving products in excellent yields with minimal efforts for purification. The characteristics of the reactions meet the requirements of a click reaction. The use of trifluoromethyl trifluoromethanesulfonate as a click reagent is advantageous over other “CO” sources (e.g., TsOCF3, PhCO2CF3, CsOCF3, AgOCF3, and triphosgene) because this reagent is readily accessible; easy to scale up; and highly reactive, even under metal- and additive-free conditions. It is anticipated that CF3SO3CF3 will be increasingly as important as SO2F2 as a click agent in future drug design and development.
Oxidative carbonylation of aromatic amines with CO catalyzed by 1,3-dialkylimidazole-2-selenone in ionic liquids
Tian, Fengshou,Chen, Yahong,Wang, Xiaofang,Li, Peng,Lu, Shiwei
, (2015/05/05)
1,3-Dialkylimidazole-2-selenone as a novel substituted selenium heterocyclic catalyst was used to catalyze oxidative carbonylation of aromatic amines with carbon monoxide in the presence of air to symmetrical ureas in up to 97% yield in ionic liquids.
Palladium-catalyzed carbonylation of amines: Switchable approaches to carbamates and N,N′-disubstituted ureas
Guan, Zheng-Hui,Lei, Hao,Chen, Ming,Ren, Zhi-Hui,Bai, Yinjuan,Wang, Yao-Yu
supporting information; experimental part, p. 489 - 496 (2012/04/04)
Switchable access to carbamates and ureas has been developed by solvent control palladium-catalyzed carbonylation of aromatic amines under an atmosphere of carbon monoxide. A variety of N-phenylcarbamates and N,N′- diphenylureas was easily synthesized in good to excellent yields from readily available aromatic amines under mild conditions. Copyright
KINASE INHIBITORS, COMPOSITIONS THEREOF, AND METHODS OF USE THEREWITH
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Page/Page column 93-94, (2009/01/23)
Provided herein are Compounds having the following structure: formula (I) wherein A, L, X and ring B are as defined herein, compositions comprising an effective amount of a Compound and methods for treating or preventing cancer, hypoxia, diabetes, stroke, autoimmune disease or a condition treatable or preventable by inhibition of Chk2, the ATM-Chk2 pathway or RSK2 comprising administering an effective amount of a Compound to a patient in need thereof.
N-heterocyclic carbene - Palladium complexes as efficient catalysts for the oxidative carbonylation of amines to ureas
Zheng, Shuzhan,Peng, Xingao,Liu, Jianming,Sun, Wei,Xia, Chungu
, p. 1471 - 1476 (2008/02/09)
A highly efficient oxidative carbonylation reaction of amines to ureas was developed making use of carbene-palladium complexes in the absence of any promoter. Both aliphatic amines and aromatic amines were transformed in good to excellent yields to the expected ureas.
ARYL UREA DERIVATIVES
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Page/Page column 36-37, (2010/10/20)
A method of treating a condition associated with the CB-1 receptor, in particular obesity, by administering an effective amount of an aryl urea CB-1 receptor modulating compound to a subject in need of such treatment.
