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The basic functionalized ionic liquid, 1-butyl-3-methylimidazolium hydroxide, was prepared and used to catalyze the Knoevenagel condensation of aromatic aldehydes with malononitrile or ethyl cyanoacetate.

合成了碱性功能化离子液体氢氧化1-丁基-3-甲基咪唑,研究了将其作为催化剂催化芳香醛和丙二氰、氰基乙酸乙酯的Knoevenagel缩合反应。

However, if the solution is also made in sodium ethoxide after the same treatment , the major product is found to be 4-t-butylcyclohexene.

然而,如果是在乙氧基钠中经过同样的处理则主要产物是4-t-丁基环己烯。

A with under strong base butyl Lithium, Wittig reaction was carried out, after cast off extremital 2,3-dihydropyran which protected hydroxy group, then 5,14-gadoleyl-1-ol was obtained.

a与在强碱正丁基锂的作用下进行Wittig反应,然后脱去末端的2,3-二氢吡喃保护基,得到5, 14-二十碳二烯醇。

Formylation and diformylation of dithieno [2,3-b:3',2'-d] thiophene were prepared by two methods. Firstly, aromatic carbanions were prepared by 1 Br/Li exchange of bromo dithieno[2,3-b:3',2'-d]thiophene with n-BuLi in THF at low temperature; 2 deprotonation of dithieno[2,3-b:3',2'-d]thiophene with LDA.

二噻吩并[2,3-b:3',2'-d]噻吩单醛与双醛的制备首先通过两种方法产生芳基负离子:1溴代并三噻吩在四氢呋喃中与正丁基锂发生的溴锂交换;2用LDA对二噻吩并[2,3-b:3',2'-d]噻吩去质子化作用。

Methods:The subcutaneous adipose tissue was obtained from the fold inguen of four SD rats, then digested with collagenase type Ⅰ and cultured in endothelial medium for seven days.

获取4只雄性SD大鼠鼠蹊部皮下脂肪,通过机械分割和组织消化法获取脂肪基质细胞,在内皮细胞培养液中培养7d后,经免疫细胞化学及透射电镜鉴定证实95%以上细胞已具内皮细胞表型特征,再将这些细胞进行成脂(DMEM/F-12培养基内加入0.5mmol/L1-甲基-3-异丁基-黄嘌呤,1μmol/L地塞米松,10μmol/L胰岛素,200μmol/L吲哚美星)定向诱导7d,形态学观察和油红O特殊染色鉴定诱导后的细胞。

Gated ~(99)Tc~m-hexakis-2-methoxy-isobutyl isonitrile /~(18)F-fluorodeoxyglucose single photon emission tomography with dual isotope simultaneous acquisition can provide the information about left ventricular function, myocardial perfusion and metabolism simultaneously.

~(99)Tc~m-甲氧基异丁基异腈和~(18)F-脱氧葡萄糖双核素同时采集单光子计算机断层显像可以一次显像获得左心室心肌的血流灌注和葡萄糖代谢的情况,如果加上门控采集,可以同时了解左心室功能的信息。

ABSTRACT Gated 〓Tc〓-hexakis-2-methoxy-isobutyl isonitrile /〓F-fluorodeoxyglucose single photon emission tomography with dual isotope simultaneous acquisition can provide the information about left ventricular function, myocardial perfusion and metabolism simultaneously.

Tc〓-甲氧基异丁基异腈和〓F-脱氧葡萄糖双核素同时采集单光子计算机断层显像可以一次显像获得左心室心肌的血流灌注和葡萄糖代谢的情况,如果加上门控采集,可以同时了解左心室功能的信息。

To assess the sensitivity of local species to toxic chemicals relative to those from other jurisdictions reported in the literature, ecotoxicological testing was also performed on three local marine species, Dunaliella salina, Brachionus plicatilis, and Lutjanus malabaricus, using 12 representative PPTSL chemicals including metals, pesticides (endosulfan, diazinon, permethrin, atrazine, tributyltin), and industrial chemicals (di-n-octyl phthalate, nonylphenol, acenaphthene).

为了评估与其他相关成文规定的当地有毒化学品种类,生态毒性测试也在三个地方的海洋物种上进行,杜氏盐藻,轮虫和红鳍笛石斑鱼,使用了十二种pptsl代表的化学元素,包括金属,杀虫剂(硫丹,二嗪磷,氯菊酯,莠去津,三丁基锡),和工业化学品(苯二甲酸二正辛酯,壬基酚,苊)。

The graft copolymerization of vinyl monomer onto carbon black with,respectively,ceric ions, n butylithium,acetylacetonate copper complex and manganic pyrophosphate complex as initiator were studied.

讨论了分别在铈离子体系,正丁基锂体系,过渡金属离子乙酰丙酮铜以及焦磷酸络锰体系的作用下,炭黑与乙烯基单体的接枝聚合。

In addition, the Medical Scientific Committee on the British Government scientists have found that in recent decades to reduce male sperm count and testicular volume of octyl phenol with narrow, double-Fen A and D n-methyl-phthalic acid resin, and these substances are widely used in manufacture of baby bottles, canned food boxes, food packaging bags, such as coating the inner wall.

此外,英国政府医学科学委员会的科学家们发现,近几十年来男性精子数量减少和睾丸体积缩小与辛基苯酚、双芬A和丁基苯甲基酞酸脂有关,这些物质广泛用于制造奶瓶、罐头盒、食品包装袋等的内壁涂层。

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