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The details and results are summarized below:(1)An ABC style three component cascade reaction of aromatic aldehydes, aromatic amines and diethyl malonic ester or cyclohexanone has been developed.

论文从苯炔和亚胺出发,设计并系统研究了4种新的多组分串联反应,主要内容和结果如下:(1)发展了一种芳醛、芳胺和丙二酸二乙酯或环己酮的ABC型三组分串联反应。

Results totally 287 strains were isolated from the 256 positive samples , and the gram-negative bacilli were 225(78.4%,), the gram-positive coccus were 41(14.3%), snd the monilia were 21(7.3%).the distributions of clinical bacteria were respiratory tract(63.4%),urinaryract(7.0%),secretion(includingwound .3%),blood(5.9%),stool(5.2%), pucture fluid(4.9%), and other sites(7.3%). of all isolating bacterium,from the first to the fifth were ps.aeruginosa(19.5%),k.pneumoniae(16.7%), e.coli(14.3%), a.baumannii(11.8%) and psemal (10.1%).resistant rates of methecillin-resistant s.aureus,methecillin-resistant coagulase-negative staphylococci and vancomycin-resistantwere 88.2%、70.0% and 11.1% respectively;the incidence of e.coli and k.penumoniae produce extended speutrum beta-lactamase were 68.6%和65.2%, 44.6% of ps.aeruginosa isolates were resistant to imipenem; the highest examining rate of 21 kinds of monilia was candida albicans (66.7%),resistant rate of candida albicans to fluconazole and amphotricin b was 51.3% and 1.3%.

结果 在254份检出细菌阳性标本中共培养出287株细菌,其中革兰阴性杆菌225株(78.4%),革兰阳性球菌41株(14.3%),念珠菌21株(7.3%),检出菌来自呼吸道标本占63.4%,其他标本各占5%左右;细菌检出占构成比前三位的依次为铜绿假单胞菌19.5%、肺炎克雷伯菌16.7%、大肠埃希菌14.3%;耐甲氧西林金黄色葡萄球菌、耐甲氧西林凝固酶阴性葡萄球菌和耐万古霉素的肠球菌的发生率分别为88.2%、70.0%和11.1%;大肠埃希菌和肺炎克雷伯菌的超广谱β-内酰胺酶的检出率分别为68.6%和65.2%,铜绿假单胞菌对亚胺培南的耐药率为40.2%;白色念珠菌对氟康唑的耐药率为81.3%,对两性霉素的耐药率为3.2%。

Absorption spectra indicate that there is little or no interaction between chromphores in the ground state. However, the fluorescence emission of oxadiazole and triphenylamine moieties are almost quenched, which shows that in the excited ground state there exists very effective intramolecular singlet-singlet energy transfer .

研究发现,这些多发色团化合物在基态发色团之间没有作用或作用很小,而其中噁二唑和三苯基胺单元的荧光被严重的猝灭,这说明在激发态下,萘酰亚胺发色团与噁二唑、三苯胺功能团之间发生了分子内单线态—单线态能量转移。

Absorption spectra indicate that there is little or no interaction between chromphores in the ground state. However, the fluorescence emission of oxadiazole and triphenylamine moieties are almost quenched, which shows that in the excited ground state there exists very effective intermolecular singlet-singlet energy transfer.

研究发现,这些多发色团化合物在基态发色团之间没有作用或作用很小,而其中恶二唑和三苯基胺单元的荧光被严重的猝灭,这说明在激发态下,萘酰亚胺发色团与恶二唑、三苯胺功能团之间发生了分子内单线态-单线态能量转移。

Triphosgene ; carbamic acid ethyl ester ; phthalimide

三光气;胺基甲酸乙酯;邻苯二甲酰亚胺

Starting from chiral proline, pipecolinic acid, piperazine-2-carboxylic acid and 1,2-diphenyl amino alcohol, a series of structurally simple and easily prepared amides were developed as highly effective Lewis basic organocatalysts for the asymmetric reduction of imines with trichlorosilane as the reducing agent, which promoted the reduction of N-aryl imines with high yields and excellent enantioselectivities with an unprecedented substrate spectrum.

本文分别由手性脯氨酸、哌啶酸、哌嗪酸以及氨基醇出发,设计和合成了一系列结构新颖、合成简便、性能优良的酰胺类有机小分子路易斯碱催化剂,以廉价的三氯氢硅为氢源,用这些催化剂催化亚胺不对称还原,得到了非常优良的收率、对映选择性和前所未有的底物普适性。

A series of polyimide/talc composite films with different contents of talc were prepared via thermal imidization of in-situ polymerized poly/talc solutions based on pyromellitic anhydride, 4,4'-oxydianiline and talc.

用原位聚合法合成一系列不同滑石粉含量的聚酰胺酸/滑石粉溶液,再将其热酰亚胺化制备出聚酰亚胺/滑石粉复合薄膜。

Diethylthiophosphoryl chloride was synthesized by reacting phosphorus thiochloride with anhydrous alcohol in the presence of NaOH, and then a novel phosphorus-nitrogen- and sulfur-containing flame retardant, 1, 4-di(O,O-diethyl thiophosphoryl imine) benzene, was synthesized via the reaction of diethylthiophosphoryl chloride with p-phenylenediamine.

以三氯硫磷与无水乙醇在NaOH存在下合成了二乙基硫代磷酰氯,然后再与对苯二胺反应合成了新型的含磷、氮、硫的膨胀型阻燃剂:1,4-二(O,O-二乙基硫代磷酰亚胺基)苯。

Next, another novel diamine, 5-5-(4-phenyl-1,3,4-oxadiazol-2-ylbenzene-1,3-diamine, was prepared and polymerization was carried out in the same way to obtain polyimides containig triphenylamine units and 1,3,4-oxadiazole moieties in the side chain .

接下来,合成另一个新型双胺5-5-(4-phenyl-1,3,4-oxadiazol-2-ylbenzene-1,3-diamine后,以相同方法进聚缩合反应,可制得另一系列三苯胺和1,3,4-恶二唑为侧链的聚醯亚胺

First, N'-(4-aminophenyl)-N'-4-(5-phenyl-1,3,4-oxadiazol-2-ylphenylbenzene-1,4-diamine was prepared and polymerization was carried out by direct polycondensation with a series of dianhydrides to obtain polyimides containig triphenylamine units in the main chain and 1,3,4-oxadiazole moieties as pendent group.

首先合成新型双胺N'-(4-aminophenyl)-N'-4-(5-phenyl-1,3,4-oxadiazol-2-ylphenylbenzene-1,4-diamine后,与一系的芳香族二酐进聚缩合反应,可制得一系列三苯胺为主链且1,3,4-恶二唑为侧链的聚醯亚胺

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