摘要:
Provided is a process for producing an optically active hydroxyaldehyde or aminohydroxyaldehyde. The process for producing an optically active hydroxyaldehyde or aminohydroxyaldehyde is characterized by reacting an aldehyde or an imine with a boric acid enol ester in the presence of a copper compound and an optically active bidentate phosphine compound.
摘要:
To provide a phosphorus-containing compound having excellent reactivity with an epoxy resin. Specifically, to provide a phosphorus-containing compound represented by following general formula (I): wherein m represents a number of 1 to 10; R 1 and R 2 each independently represent a hydrogen atom, an alkyl group, or an aryl group; R 3 represents an alkyl group, an alkanediyl group, an alkanetriyl group, an alkanetetrayl group, or an aromatic group; X represents an oxygen atom or a sulfur atom; Y represents an oxygen atom, a sulfur atom, or -NR 4 -; and R 4 represents a hydrogen atom, an alkyl group, or an aryl group.
摘要翻译:提供与环氧树脂具有优异反应性的含磷化合物。 具体而言,为了提供下述通式(I)所示的含磷化合物,式中,m表示1〜10的数, R 1和R 2各自独立地表示氢原子,烷基或芳基; R 3表示烷基,链烷二基,链烷三基,链烷四基或芳族基; X代表氧原子或硫原子; Y表示氧原子,硫原子或-NR 4 - ; 并且R 4表示氢原子,烷基或芳基。
摘要:
The present invention relates to novel sulfur derivatives, processes for preparing them, pharmaceutical compositions containing them and their use as pharmaceuticals as modulators of chemokine receptors.
摘要:
This invention relates to new monomers prepared from phosphorus-containing diene monomers and (meth)acrylonitrile via Ritter reactions, and the preparation method thereof. The polymer of these monomers can be utilized in various applications such as water treatment, rheology modifier, surface modification, etc. The monomers have the following structure (II), Wherein R1, R2, R3, R4, R5, R6and R7 represent, independently, hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, heterocycloalkyl, or alkenyl groups; R6 and R7 represents R9O, and R10 respectively wherein R9 and R10 represents hydrogen, alkyl, aryl, alkaryl, aralkyl, cycloalkyl, alkenyl groups, or metals selected from the group consisting of Na, Li, Ca; Rs represents H, or CH3.
摘要:
Nucleotide analogs characterized by the presence of an amidate linked amino acid or an ester linked group which is bonded to the phosphorus atom of phosphonate nucleotide analogs are disclosed. The analogs comprise a phosphoamidate or ester bond that is hydrolysed in vivo to yield a corresponding phosphonate nucleotide analog. Methods and intermediates for the synthesis and use are described.
摘要:
Tellurium-containing nanocrystallites are produced by injection of a precursor into a hot coordinating solvent, followed by controlled growth and annealing. Nanocrystallites may include CdTe, ZnTe, MgTe, HgTe, or alloys thereof. The nanocrystallites can photoluminesce with quantum efficiencies as high as 70 %.