carbonyl

Study on Simulation of Vibrant Frequency of Carbonyl;羰基振动频率的理论计算模拟LVk汉语字典

Two isoxazole intermediates containing 1,2,3triazolyl and carbonyl,which can also be used as intermediates for synthesis of new heterocyclic compounds,have been synthesized.以2-苯基-1,2,3-三唑-4-甲醛为原料,合成2种在异噁唑环上同时含有1,2,3-三唑基和羰基的新型化合物,它们可作为合成其他杂环化合物的中间体,其分子结构经IR,1HMR,MS谱确证。LVk汉语字典

0,the amount of oxidation element Ⅰ 4%,the temperature 85 ℃ and the time 4 h;the optimum conditions to obtain the maximal carbonyl content was: pH=5.而得到含羰基量较多的糊化活化淀粉最佳反应条件为pH值5。LVk汉语字典

The conditions/reagents for protecting carbonyl groups as acetals, thioacetals and oxothioacetals as well as the corresponding deprotection processes published during the period of 2000～2006 are briefly surveyed.对2000～2006年间文献中报道的一些对羰基化合物进行缩酮(醛)类的保护、去保护的主要方法进行了简要的概述。LVk汉语字典

This article narrates the transformation of carbonyl group in optically active epoxy ketones under different reagents and enumerates some synthetic applications of this kind of transformation.本文讲述了有机合成中光学活性的环氧酮化合物中酮羰基在不同试剂下的转化,并列举了一些相关的合成应用。LVk汉语字典

The chemical reductants fail to reduce carbonyl group under ambient conditions.羰基在一般条件下不易被化学还原剂还原。LVk汉语字典

The mass spectral fragmentation of long chain carboxide compounds was discussed and calculation of molecular formula was proposed in the paper.〕本文讨论了长链脂肪族羰基化合物的质谱裂解规律及其分子式的计LVk汉语字典

It bas been discovered that the carboxylic ester rare earth salt is superior to the organotin in antidehydrochlorination, and inferior to the organotin in antioxidation through following the tracks of carboxide group and conjugated double bond with the help of infrared spectroscopy and ultraviolet-visible spectroscopy.借助于红外光谱和紫外／可见光谱，通过跟踪光老化过程中羰基基团和共轭双键的变化，发现羧酸酯稀土的抗脱ＨＣｌ能力优于有机锡，但抗氧化能力不如有机锡。LVk汉语字典

The nitrous oxide-ethane flame atomic absorption spectrophotometer was used to measure calcium in carbonyl nickel powder.运用N2O-C2H2火焰原子吸收光谱法测定羰基镍粉中的钙。LVk汉语字典

The application of air-acetylene flame atomic absorption spectral method for measuring the iron content in carbonyl nickel powder is studied.文章运用了空气-乙炔火焰原子吸收光谱法进行羰基镍粉中铁含量的测定。LVk汉语字典

The application of N_2O-C_2H_2 flame atomic absorbing spectral method to measure the content of molybdenum in carbonyl nickel powder is studied.运用了N2O-C2H2火焰原子吸收光谱法进行羰基镍粉钼含量的测定。LVk汉语字典

Study on the surface modification of carbonyl iron;羰基铁粉颗粒表面硅烷偶联剂改性的研究LVk汉语字典

Study on ferrite/carbonyl iron composite absorber;铁氧体/羰基铁粉复合吸波材料研究LVk汉语字典

TGA(mass reduction) curves showed the high magnetic content of the porous composites and XRD spectra showed that carbonyl iron particles in porous composite micro-spheres were not changed but remain the magnet of its own.以硅烷偶联剂KH-570对羰基铁粉颗粒进行表面修饰,并经一步聚合得到多孔磁性高分子微球。LVk汉语字典

Compares the main propylene carbonyl synthesis processes and the development of relative catalyst at home and abroad,and analyzes several methods of recovering waste Rhodium catalysts.比较国内外丙烯羰基合成主流技术以及羰基合成催化剂的研究进展情况。LVk汉语字典

The selecting of separating CO in industry of carbonyl synthesis and the application fields of the PSA separating CO technology are introduced.简述了不同吸附分离CO技术的特点,介绍了变压吸附分离CO技术的原理和工艺现状以及羰基合成工业中分离CO技术的选择。LVk汉语字典

This paper introduces the features of process revampring for manufacture of butanol and octanol by low pressure carbonyl synthesis process and describes the importance and possibility of process revamping for the butanol and octanol plant in the second Chemical Fertilizer Plant of Qilu Petrochemical Co.介绍了低压羰基合成法生产丁辛醇的工艺技术改造特点，阐述了齐鲁二化肥厂丁辛醇装置进行技术改造的必要性和可行LVk汉语字典

Micron nickel carbonyl powderGB/T7160-1987微米级羰基镍粉LVk汉语字典

Study on Carbonyl Iron and Carbonyl Iron-Epoxy Resin Composite Particles;羰基铁及羰基铁—环氧树脂复合粒子的研究LVk汉语字典

Study on the Synthesis of Fmoc-L-Lys(Boc)-OHN~α-9-芴甲氧羰基-N~ε-叔丁氧基羰基-L-赖氨酸的合成研究LVk汉语字典

Synthesis of 1-Aza-1-(t-butoxycarbonyl)-8-oxo-spiro[4,4]non-6-ene6-烯-8-羰基-1-叔丁氧基羰基氮杂螺[4,4]壬烷的合成LVk汉语字典

ketone :Any of a class of organic compounds containing a carbonyl group (-C=O; see functional group) Bonded to two carbon atoms.酮: 一类包含羰基(－C＝O)的有机化合物,其羰基连接着两个碳原子。LVk汉语字典

Density Functional and Ab Initio MO Study on the Electrionic Structure and Carbonyls' Fluxionality of the Triosmium Carbonyl Clusters;三锇羰基簇合物的电子结构及羰基流变性的理论研究LVk汉语字典

Carbonyl Stress and Decarbonyl Stress in a Hemorheologic Model System;血液流变学模式系统中的羰基应激和去羰基应激LVk汉语字典

The Preparation of Cobalt Carbonys Catalyst and Its Catalyzed Carbonylation for Synthesis of Diethyl Malonates羰基钴催化剂的制备及其催化羰基化合成丙二酸二乙酯LVk汉语字典

Process Improvement on the Synthesis of 1-Benzyloxycarbonyl-3-(t-butoxycarbonylamino)azetidine1-苄氧羰基-3-叔丁氧羰酰氨基氮杂环丁烷的合成工艺改进LVk汉语字典

Mechanism of Methanol Carbonylation Catalyzed by Chelated Carbonyl Rhodium Complex螯合型羰基铑配合物催化甲醇羰基化反应的机理研究LVk汉语字典

The bivalent radical CO.羰基，碳酰基二价原子团COLVk汉语字典

Ketose A monosaccharide SUGAR containing a ketone (=CO) or potential ketone group, e.g. dihydroxyacetone.酮糖：含有羰基的单糖。例如二羟基丙酮。LVk汉语字典

Asymmetric Reduction of Carbonyl Compounds Containing Amino Group;含有氨基的羰基化合物的不对称还原LVk汉语字典

Photochemical Syntheses of Silyl Manganese Pentacarbonyls (CO)_5MnSiR_3硅烷基五羰基锰(CO)_5MnSiR_3的光化学合成LVk汉语字典

Synthesis of the 3,5-diethyl-2,4-dimethoxycarbonylpyrrole3,5-二乙基-2,4-二甲氧羰基吡咯的合成LVk汉语字典

Aromatics--Determination of carbonyl value and carbonyl compounds content--Free hydroxylamine methodGB/T14454.17-1993香料羰值和羰基化合物含量的测定游离羟胺法LVk汉语字典

Aromatics--Determination of carbonyl value and carbonyl compounds content--Hydroxylammonium chloride methodGB/T14454.16-1993香料羰值和羰基化合物含量的测定盐酸羟胺法LVk汉语字典

A metal compound, such as Ni(CO)4, containing the CO group.含羰基的金属化合物，如Ni（CO）4LVk汉语字典