Electrophilic nitration of 2-trifluoromethylchromone and its 6- and 7-methoxy derivatives affords 6-, 5-, and 8-nitro derivatives, respectively, while 5,7-dimethyl-2-trifluoromethylchromone yields a 6,8-dinitro derivative. Radical chlorination results in 3-chloro derivatives.
The present invention relates to molecules having the following chemical structure (I)
The present invention concerns molecules, in particular active as BRAG2 inhibitors and applications thereof.
In particular, the invention concerns BRAG2 inhibitors in the treatment of a cancer or angiogenesis.
Synthesis of 2-(trifluoromethyl)-1,2-dihydro-4H-thieno[2,3-c]chromen-4-ones and 2-(trifluoromethyl)-4H-thieno[2,3-c]chromen-4-ones from 2-trifluoromethylchromones and ethyl mercaptoacetate
作者:Vyacheslav Ya Sosnovskikh、Boris I Usachev、Dmitri V Sevenard、Gerd-Volker Röschenthaler
DOI:10.1016/s0040-4020(03)00329-6
日期:2003.4
mercaptoacetate in the presence of triethylamine results in the formation of 1,2-dihydrothieno[2,3-c]chromen-4-ones and diethyl 3,4-dithiadipate in high yields. Oxidation of the first compounds with nitrogen dioxide gave 1,2-dihydrothieno[2,3-c]chromen-3,4-diones which were converted into thieno[2,3-c]chromen-4-ones.
在三乙胺的存在下,2-三氟甲基色酮与巯基乙酸乙酯的氧化还原反应可高产率地形成1,2-二氢噻吩并[2,3 - c ]铬-4-酮和3,4-二硫代二乙酯二乙酯。用二氧化氮氧化第一化合物,得到1,2-二氢噻吩并[2,3- c ] chromen-3,4-二酮,将其转化为噻吩并[2,3 - c ] chromen-4-ones。
Reaction of 2-trifluoromethylchromones with cyanoacetic and malonic esters. Synthesis of new benzo[c]coumarin derivatives
作者:V. Ya. Sosnovskikh、A. V. Safrygin、V. A. Anufriev
DOI:10.1007/s11172-013-0320-x
日期:2013.10
2-trifluoromethylchromones with ethyl cyanoacetate and diethyl malonate in ethanol in the presence of sodium ethoxide furnished a number of new benzo[c]coumarin derivatives, which were formed with involvement of two ester molecules.
Reactions of 2-polyfluoroalkylchromones with aliphatic diamines
作者:V. Ya. Sosnovskikh、V. A. Kutsenko
DOI:10.1007/bf02496279
日期:1999.4
Abstract2-Polyfluoroalkylchromones react with aliphatic 1,2-diamines to give 2,3-dihydro-1H-1,4-diazepines. A similar reaction with 1,3-diaminopropane yieldsN,N′-trimethylenebis(2-hydroxyacetophenomines) as a result of scission of the original chromones.
A Simple One-Pot Synthesis of 2,6-Disubstituted 4-(Polyfluoroalkyl)pyridines and -pyrimidines by Reaction of 2-Polyfluoroalkylchromones with Aromatic Methyl Ketimines and Amidines
作者:Vyacheslav Ya. Sosnovskikh、Boris I. Usachev、Aleksei Yu. Sizov、Mikhail A. Barabanov
DOI:10.1055/s-2004-822321
日期:——
The reaction of 2-polyfluoroalkylchromones with ketimines, derived from aromatic methyl ketones and isopropylamine, gives 2,6-diaryl-4-polyfluoroalkylpyridines in moderate to low yields. Benzamidine and guanidine also react with 2-polyfluoroalkylchromones to afford the corresponding 2,6-disubstituted 4-polyfluoroalkylpyrimidines.