摘要:
Disclosed in a method for producing a mixture containing cycloalkanone and/or cycloalkanol which comprises oxidizing a cycloalkane with molecular oxygen to a cycloalkyl hydroperoxide represented by the formula (1): ##STR1## (wherein m represents an integer of 4.ltoreq.m.ltoreq.11) and decomposing the cycloalkyl hydroperoxide to obtain a mixture containing cycloalkanone and/or cycloalkanol, wherein the oxidation of the cycloalkane with molecular oxygen and/or the decomposition of the cycloalkyl hydroperoxide are carried out in the presence of a catalyst composition comprising at least one metallic salt represented by the formula (2):MX.sub.n (2)(wherein M represent Co, Mn, Cr or Fe, X represents an anionic ligand and n represents 2 or 3) and at least one compound represented by the formula (3): ##STR2## (wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen or a lower alkyl group) and/or a catalyst composition comprising at least one metal complex represented by the formula (4): ##STR3## (wherein M represents Co, Mn, Cr or Fe, X represents an anionic ligand, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen or a lower alkyl group, p is 1 or 2 and q is 0, 1 or 2).Advantages of the method are higher conversion of cycloalkyl hydroperoxide, higher yields of cycloalkanone and cycloalkanol and higher production ratio of cycloalkanone.
摘要翻译:本发明涉及制备含有环烷酮和/或环烷醇的混合物的方法,该方法包括用分子氧将环烷烃氧化为由式(1)表示的环烷基氢过氧化物:其中m表示4的整数, = m 11)并分解环烷基氢过氧化物以获得含有环烷酮和/或环烷醇的混合物,其中环烷烃与分子氧的氧化和/或环烷基氢过氧化物的分解在催化剂存在下进行 包含至少一种由式(2)表示的金属盐的组合物:MXn(2)(其中M表示Co,Mn,Cr或Fe,X表示阴离子配体,n表示2或3)和至少一种由 式(3):其中R1,R2,R3和R4独立地表示氢或低级烷基)和/或包含至少一种由式(4)表示的金属络合物的催化剂组合物: (图) 4)(其中M表示Co,Mn,Cr或Fe,X表示阴离子配体,R1,R2,R3和R4独立地表示氢或低级烷基,p为1或2,q为0,1或2) 。 该方法的优点是环烷基氢过氧化物的转化率较高,环烷酮和环烷醇的产率较高,环烷酮的生产率较高。
摘要:
A process for producing purified monoammonium phosphate (abbreviated to MAP) directly from wet process phosphoric acid with a high yield is provided, which process comprises reacting wet process phosphoric acid with NH.sub.3 at 50.degree..about.80.degree. C. while keeping the molar ratio of NH.sub.3 /H.sub.3 PO.sub.4 at 0.9.about.1.35; separating the resulting slurry containing MAP crystals and an insoluble sludge into a slurry containing the former and a slurry containing the latter; treating the former slurry in a conventional manner to recover MAP; while treating the latter slurry by heating it to 60.degree..about.95.degree. C. to dissolve MAP contained therein, removing the sludge by centrifugal separation and concentrating the filtrate to recover MAP; and combining the two portions of MAP.
摘要:
This invention provides a process for preparing a fibrin-adsorable protein-urokinase complex characterized by reacting a protein adsorbable by fibrin with urokinase in the presence of a protein coupling reagent represented by the formula ##STR1## wherein R is phenylene or cycloalkylene, A is lower alkylene, B is lower alkylene which may optionally be substituted by lower alkylthio or phenyl-lower alkylthio, and l, m and n are each 0 or 1 provided that l, m and n are not 0 at the same time.The complex is useful as a thrombolytic agent.
摘要:
A far infrared ray radiating mattress has a three layer structure including a lower layer of plate-like resilient and foamed synthetic resin, a middle layer of foamed synthetic resin corrugated in a longitudinal direction and having a plurality of protrusions provided on the upper surface thereof; a sheet-like far infrared ray radiating heater is provided on the three layer structure; and a cover is provided so that the three layer structure and the sheet-like heater are surrounded thereby.
摘要:
Rhombohedral system boron nitride is produced by heating a boron material selected from the group consisting of boron oxide, boric acid and an oxygen-containing boron compound capable of forming boron oxide when heated, at a temperature of from 1200.degree. to 2100.degree. C. to vaporize boron oxide and reacting the vaporized boron oxide with hydrogen cyanide or cyanogen gas.
摘要:
Novel method optically active oxazaphosphorin derivatives represented by the general formula (I), ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are respectively different from each other and are hydrogen atom(s), lower alkyl group(s), aralkyl group(s), or aryl group(s); and X is a halogen atom. The novel oxazaphosphorin derivative is prepared by reacting an optically active amino alcohol derivative represented by the general formula (II), ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are the same as defined above, with a phosphorus compound represented by the general formula (III),POX.sub.3wherein X is the same as defined above.The novel optically active oxazaphosphorin derivatives are useful as intermediates for preparing optically active cyclophosphamide derivatives which are useful therapeutical agents for curing against follicular lymphoadenopathy, lymphosarcomatosis, Hodgkin's disease, lymphosarcoma cell leukaemia, reticulum-cell sarcoma or the like.
摘要:
A process for producing boron nitride comprises heating a mixture consisting of borohydride of alkali metal and ammonium chloride at a temperature range of from 800.degree. to 2200.degree. C. in a non-oxidizing atmosphere.
摘要:
Cubic system boron nitride from rhombohedral system boron nitride is produced by a shock wave compression method. The process comprises applying a thermodynamically stable pressure to rhombohedral system boron nitride to convert it to cubic system boron nitride.
摘要:
A 1,3-conjugated diene compound and a derivative of a butadiene dimer are subjected to an addition reaction over a rhodium compound. The 1,3-conjugated diene compound adds to the derivative in a molar ratio of 1:1. The derivative may be an ester, ether or alcohol. Said derivative is obtained either by reacting a carboxylic acid, an alcohol or a phenol with a butadiene over a palladium catalyst or by hydrolyzing the reaction product.
摘要:
A novel nano thermometer, which can be used for temperature measurement of a wide temperature range, in a micrometer size environment, and a method for producing the same. The nano thermometer is a carbon nanotube filled with a continuous columnar gallium, which enables measurement of environmental temperature by length change of the columnar gallium, and is produced by mixing Ga2O3 powder and carbon powder uniformly, and performing heat treatment for this mixed powder at a temperature range of 1200 to 1400° C. under an inert gas flow.
摘要翻译:一种新颖的纳米温度计及其制造方法,其可用于宽温度范围的温度测量。 纳米温度计是填充有连续柱状镓的碳纳米管,其能够通过柱状镓的长度变化来测量环境温度,并且通过混合Ga 2 N 3 O 3 >粉末和碳粉末,并在惰性气体流下在1200〜1400℃的温度范围内对该混合粉末进行热处理。