摘要:
Certain new 5,6,7-trichlorobenzoxazolone derivatives are highly active against a wide range of plant fungal and bacterial diseases and have a reduced phytotoxicity. These derivatives are also useful to control the growth of various fungi and bacteria being capable of deteriorating industrial materials.
摘要:
New organophosphoric acid ester anhydride derivatives, more particularly new thiopyrophosphoric acid P,P,P'-trialkylester-P'-dialkylamide of the formula ##STR1## wherein R.sub.1 is an alkyl group of 3 to 6 carbon atoms and R.sub.2, R.sub.3 and R.sub.4 may be the same or different from each other and each are an alkyl group of 1 to 6 carbon atoms are now provided. These new organophosphoric acid ester anhydride derivatives have high insecticidal, miticidal and nematocidal activities and are useful as an insecticidal, miticidal and nematocidal agent.
摘要:
To provide a catalyst for synthesis reaction which can achieve good yield in the Sonogashira reaction and also can be recovered after the reaction, and a method for synthesizing a compound in which the catalyst for synthesis reaction is used, a perovskite-type composite oxide containing palladium is used as the catalyst for synthesis reaction in the Sonogashira reaction represented by the following reaction scheme (1): R1—X+HC≡CR2→R1C≡CR2 (1)
摘要翻译:为了提供合成反应的催化剂,其能够在Sonogashira反应中获得良好的产率,并且也可以在反应后回收,以及合成其中使用合成反应的催化剂的化合物的方法,含有钯的钙钛矿型复合氧化物 用作由以下反应方案(1)表示的Sonogashira反应中的合成反应的催化剂:<?in-line-formula description =“In-line formula”end =“lead”?> R&lt; 1& / SUB + -X +HC≡CR2 - > R 1C≡CR2(1)<β在线公式描述 =“内联公式”end =“tail”?>
摘要:
In Suzuki Cross-Couplings, a palladium-containing perovskite-type composite oxide represented by the following general formula (1) is used as a catalyst for synthesis reaction: Ln2MyCu1-x-yPdxO4±δ (1) wherein Ln represents elements composed of at least one essential element selected from La, Pr, Nd, Sm, Eu, and Gd and at least one optional element selected from Y, Ce, Yb, Ca, Sr, and Ba; M represents at least one element selected from Cr, Mn, Fe, Co, Ni, and Al; x, indicating an atomic proportion, is 0.001≦x≦0.4; y, indicating an atomic proportion, is 0≦y≦0.5; and δ indicates an oxygen excess amount or an oxygen deficiency amount.
摘要:
To provide a catalyst for synthesis reaction which can achieve good yield in the Sonogashira reaction and also can be recovered after the reaction, and a method for synthesizing a compound in which the catalyst for synthesis reaction is used, a perovskite-type composite oxide containing palladium is used as the catalyst for synthesis reaction in the Sonogashira reaction represented by the following reaction scheme (1): R1—X+HC≡CR2→R1C≡CR2 (1)
摘要:
To provide a highly safe and hygienic method for industrially efficiently producing a perovskite-type composite oxide at low temperatures in heat treatment, in which the resulting perovskite-type composite oxide can maintain the catalytic activity of a noble metal at a high level over a long time, in a method for producing a perovskite-type composite oxide, a perovskite-type composite oxide is produced by mixing organometal salts of all elementary components constituting the perovskite-type composite oxide to prepare a precursor of the perovskite-type composite oxide, or mixing one or more organometal salts of part of the elementary components constituting the perovskite-type composite oxide with the other elementary components prepared as alkoxides of the respective elements, a coprecipitate of salts of the respective elements or a citrate complex of the respective elements to prepare a precursor of the perovskite-type composite oxide, and heat-treating the precursor of the perovskite-type composite oxide.
摘要:
To improve a catalytic activity of a composite oxide, to carry out a reaction in a high yield, and to provide a synthesis reaction catalyst having excellent handling properties and a method of a synthesizing a compound using the same, a synthesis reaction catalyst containing a palladium-containing perovskite-type composite oxide having a specific surface area of 0.5 to 9.5 m2/g is used in Suzuki Cross-Couplings given by the following general scheme (14).
摘要:
An exhaust gas purifying catalyst capable of exhibiting excellent catalytic purifying activity in long term use under high temperatures exceeding 900.degree. C., the exhaust gas purifying catalyst comprising a heat-resistant oxide which is expressed by the following general formula: AMn.sub.x Al.sub.12-X O.sub.19 (where A represents an alkaline earth metal which can be substituted by an alkali metal and/or a rare earth element, and x represents an atomic ratio of 0.5 to 4) and a noble metal.
摘要:
A new improved process of producing a rare earth metal alkoxide is now provided, which comprises reacting a rare earth metal carboxylate with an alkali metal alkoxide in an inert organic solvent under anhydrous conditions, and which can be conducted in a facile way and give the desired rare earth metal alkoxide of a high purity in a high yield.