Abstract:
The present invention refers to a process for preparing a compound of general formula (A), wherein R is a radical of naproxen or bromonaproxen and R1-R12 are hydrogen or alkyl groups, m, n, o, q, r and s are each independently an integer from 0 to 6, and p is 0 or 1, and X is O, S, SO, SO2, NR13 or PR13 or an aryl, heteroaryl group, said process comprising reacting a compound of formula (B) : R-COOZ wherein R is as defined above and Z is hydrogen or a cation selected from: Li+, Na+, K+, Ca++, Mg++, tetralkylammonium, tetralkylphosphonium, with a compound of formula (C), as reported in the description, wherein R1-R12 and m, n, o, p, q, r, s are as defined above and Y is a suitable leaving group.
Abstract:
A catalyst includes a cyclic imide compound having an N-substituted cyclic imide skeleton represented by following Formula (I): wherein X is an oxygen atom or a hydroxyl group, and having a solubility parameter of less than or equal to 26 [(MPa) 1/2 ] as determined by Fedors method. The catalyst may further-comprise a metallic compound. By allowing (A) a compound capable of forming a radical to react with (B) a radical scavenging compound in the presence of the catalyst, an addition or substitution reaction product between the compound (A) and the compound (B) or a derivative thereof can be obtained.
Abstract:
A process for the production of a high energy nitrate ester involves reacting, in an inert organic solvent, a heterocyclic compound, selected from oxiranes, oxetanes, N-substituted aziridines and N-substituted azetidines, with either N 2 0 4 or N 2 0 5 , and when the compound is reacted with N 2 0 4 , oxidising the 0- or N-nitrate substituents or substituent in the product to O-or N - nitrate substituent or substituents. The remaining ring carbon atoms on the heterocyclic compound may be substituted or unsubstituted. Preferred substituent groups for the C and/or N ring atoms on the compound include alkyl, cyanoalkyl, haloalkyl, nitroalkyl, and substituted aryl. Several novel nitrate ester are also provided, including nitrated derivatives of polybutadiene, in which between 1 % and 25% of the carbon atoms in the polymer are substituted by vicinal nitrate ester (-ON0 2 ) groups.
Abstract translation:制备高能硝酸酯的方法包括在惰性有机溶剂中使选自环氧乙烷,氧杂环丁烷,N-取代的氮丙啶和N-取代的氮杂环丁烷与杂环化合物与N 2 O 4或N 2 O 5反应,当化合物 与N2O4反应,将产物中的O-或N-硝酸盐取代基或取代基氧化成O-或N-硝酸盐取代基。 杂环化合物上的剩余环碳原子可以是取代或未取代的。 化合物上C和/或N环原子的优选取代基包括烷基,氰基烷基,卤代烷基,硝基烷基和取代的芳基。 还提供了几种新的硝酸酯,包括聚丁二烯的硝化衍生物,其中聚合物中1%至25%的碳原子被连位硝酸酯(-ONO 2)基团取代。
Abstract:
Compounds of Formula (I), including stereoisomers and salts thereof, and compositions, methods of treatment and prevention, and methods of preparing, the same: Formula (I) wherein X is O or a direct bond; wherein when X is O, R 1 and R 2 are each independently selected from -H, -SO 3 Na, -PO(ONa) 2 , -PO(OCH 2 CH 3 ), -CH 2 PO(ONa) 2 , -NO 2 , -(L)-valine ester, -(L)-N-methyl arginine ester, -α-guanidinoglutaric acid ester, -2-iminobiotin ester, -3- hydroxy anthranilic acid ester, -(L)-nitroarginine ester, -(L)- N5-(1-iminoethyl)-(L)- ornithine (NIO) ester, -(L)-N,N dimethylarginine ester, -(L)- N6-(1-iminoethyl)-(L)-lysine (NIL) ester, -(L)- N-monomethyl-(L)-arginine (NMMA) ester, -N-amino-(L)-arginine ester, -N-propyl-(L)-arginine ester, -S-methyl-(L)-thiocitrulline ester, -methyl-(L)-NIO ester, - vinyl -(L)-NIO ester, and -propenyl-(L)-NK) ester; and wherein when X is a direct bond, R 1 and R 2 are Formula (II).
Abstract:
A process for synthesizing isooctyl nitrate in a continuous flow reactor comprises flowing a H2SO4-HNO3 mixture within a flow reactor, flowing isooctyl alcohol into said flow reactor so as to mix the isooctyl alcohol with the H2SO4-HNO3 mixture and produce a reaction mixture stream flowing in said reactor, maintaining the reaction mixture stream flowing in said flow reactor at a reaction temperature within in the range -10° to 35°C inclusive, and wherein the residence time of the reaction mixture stream in the flow reactor is greater than or equal to 5 seconds and less than or equal to 40 seconds, and wherein the H2SO4 of the H2SO4-HNO3 mixture is H2SO4 having a concentration of in the range of 85 to 95% inclusive, more desirably 88 to 92% inclusive, most desirably of 90%.
Abstract translation:在连续流动反应器中合成硝酸异辛酯的方法包括使流动反应器内的H 2 SO 4 -HNO 3混合物流动,将异辛醇流入所述流动反应器中,以将异辛醇与H 2 SO 4 -HNO 3混合物混合并产生流动的反应混合物流 在所述反应器中,保持反应混合物流在所述流动反应器中流动的反应温度在-10℃至35℃的范围内,并且其中反应混合物流在流动反应器中的停留时间大于或等于 至5秒且小于或等于40秒,并且其中H 2 SO 4 -HNO 3混合物的H 2 SO 4为浓度为85-95%(含)的H 2 SO 4,更优选为88-92%,最优选为90 %。
Abstract:
This invention relates generally to enantiomerically enriched C-H activated ruthenium olefin metathesis catalyst compounds which are stereogenic at ruthenium, to the preparation of such compounds, and the use of such catalysts in the metathesis of olefins and olefin compounds, more particularly, in the use of such catalysts in enantio- and Z-selective olefin metathesis reactions. The invention has utility in the fields of catalysis, organic synthesis, polymer chemistry, and industrial and fine chemicals chemistry.