摘要:
The invention provides novel diamino-functionalised chalcone derivatives and analogues thereof. Use of the compounds, or compositions comprising them, as pharmaceutically active agents, in particular against bacterial and parasitic infections, is also disclosed. The invention further relates to a method for detecting inhibitory effects against e.g., bacteria, parasites, fungi, and helminths. The chalcones of the invention carry amino substituents and exhibit enhanced biological effects combined with improved metabolic and physicochemical properties, making the compounds useful as drug substances, in particular as antiparasitic and bacteriostatic agents.
摘要:
Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain alkyl (or alkoxy) substituted fluoro-benzylidene sorbitol acetals and polymer compositions thereof which may be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive fluorinated and alkylated benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks.
摘要:
To provide a photocatalyst having a photocatalytic activity far higher than that of flavin, and being excellent in stability as a catalyst. A photocatalyst comprising a flavin-rare earth metal ion complex.
摘要:
Plastic additives which are useful as nucleating agents and which are especially useful for improving the optical properties of polymeric materials are provided. More particularly, this invention relates to certain alkyl (or alkoxy) substituted fluoro-benzylidene sorbitol acetals and polymer compositions thereof which may be utilized within, as merely examples, food or cosmetic containers and packaging. These inventive fluorinated and alkylated benzylidene sorbitol acetals are also useful as gelling agents for water and organic solvents, particularly those used in the preparation of antiperspirant gel sticks.
摘要:
The present invention is a user- and eco-friendly hypervalent iodine reagent (mIBX) capable of selectively oxidizing allylic and benzylic alcohols in water and other eco-friendly solvents and having generally the following structure: 1 Allylic and benzylic alcohols are cleanly oxidized to the corresponding carbonyl compounds in water or water-THF mixtures, or other mixtures, using a water-soluble o-iodoxybenzoic acid derivative of the present invention.
摘要:
The invention relates to liquid-crystalline (dihydro)phenanthrene derivatives of the formula I 1 in which R, G, A1, Z1, m, L1, L2, L3, L4, L5 and Y are as defined in claim 1, and to liquid-crystalline media comprising at least one (dihydro)phenanthrene derivative of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.
摘要:
The invention relates to a particularly advantageous preparation of fluorine-containing benzaldehydes by reacting a corresponding aromatic acid chloride with hydrogen in the presence of a supported palladium catalyst and a catalyst moderator.
摘要:
Compounds of formula I are useful in treating diseases prevented by or ameliorated with potassium channel openers. Also disclosed are potassium channel opening compositions and a method of opening potassium channels in a mammal.
摘要:
The present invention is directed to a transition metal catalyst, comprising a Group 8 metal and a ligand having the structure 1 wherein R, Rnull and Rnull are organic groups having 1-15 carbon atoms, nnull1-5, and mnull0-4. The present invention is also directed to a method of forming a compound having an aromatic or vinylic carbon-oxygen, carbon-nitrogen, or carbon-carbon bond using the above catalyst. The catalyst and the method of using the catalyst are advantageous in preparation of compounds under mild conditions of approximately room temperature and pressure.
摘要:
This invention is directed to a process for the solid phase synthesis of aldehyde, ketone, oxime, amine, hydroxamic acid and (null,null-unsaturated carboxylic acid and aldehyde compounds and to polymeric hydroxylamine resin compounds useful therefor.