Liquid - phase oxidation of alkane under mild conditions 温和条件下烷烃的液相氧化进展
On the contrary to the vinyl and aryl chlorides , the oxidative addition reaction of zerovalent palladium to chloro - substituted phosphaalkenes proceeded smoothly under mild conditions 摘要与氯代烯烃或芳烃相反,氯代膦烯与零价钯的氧化加成反应可以在温和条件下进行。
A new convenient synthesis of a series of polyfluoroalkyl substituted cyclopropane derivatives was achieved by the reaction of polyfluoroalkyl iodides with diethyl allylmalonate in the presence of sodium dithionite in 45 % ~ 55 % yields 摘要以连二亚硫酸钠为引发剂,烯丙基丙二酸二乙酯与多氟烷基碘代烷在温和条件下反应,方便地得到一系列多氟烷基取代的环丙烷衍生物,产率45 % ~ 55 % 。
3 . the reaction of lanthanide powder with anthracene in the presence of ticl4 catalyst in tetrahydrofuran at 0 - 60 under normal pressure generated organolanthanide compounds , which are less thermal . it was found that the decomposition of the organolanthanide compounds in vacuum could give rise to lanthanide powder of nanometric size with high purity accordingly 3 .纳米尺寸镧系金属粉末制备的研究温和条件下,采用络合催化法合成镧系金属有机化合物,利用它的热不稳定性,在真空条件下进行热分解来制备纳米尺寸镧系金属粉末。
1 lanthanide hydrides ( m = la , nd , sm , dy and yb ) can be prepared easily by the direct hydrogenation of lanthanide metals catalyzed by ticl4 in tetrahydrofunan ( thf ) under normal pressure . the rate of hydrogenation decreased with increasing atomic number of lanthanides . transmission electron micrographs showed that the resulted lanthanide hydrides were in the form of nanoparticles with an average primary particle size around 20 - 40 nm 本论文首次提出一种在温和条件下催化合成纳米尺寸的镧系金属氢化物的方法,介绍在常温常压下,镧、钕、钐、镝、镱五种镧系金属在四氢呋喃( thf )溶剂中,催化剂作用下与氢气直接化合形成相应的纳米尺寸的镧系金属氢化物。
温和: temperate; mild; moderate条件: condition; term; factor温和条件下试验: light-duty test饱和条件: saturated condition; saturation conditions缓和条件: moderate condition讲和条件: terms of peace奇环和条件: odd ring sum condition条款和条件: terms & conditions; terms and conditions中和条件: neutrality condition最大饱和条件: maximum saturation condition服务福利和条件: benefits and conditions of services工作的性质和条件: nature and conditions of work合同条款和条件: contractual terms & conditions选择过程和条件等: interventions温和操作条件: mild operating conditions测试数据和条件实例生成: test case generation劳动力的工资和条件: wages and conditions of labor信贷协定的期限和条件: terms of loan agreements选择一个区域和条件: select a zone and condition以下所提到的条款和条件: terms and conditions mentioned below有竞争性条款和条件: competitive terms and conditions; conditions温和: 温和lukewarm; warm 粥还温和呢。 the porredge is still warm.辩护准备时间和条件充足权: right to have adequate time and facilities for测试程序的数据和条件生成: test case generation世界油船(基本)费率表时间条款和条件: whtc worldscale hours terms and conditions