苯并

Three new ferrocenylmethyl-substituted indenes and cyclopentadienes were synthesized by the addition of hydrogen anion and carbon anion to fulvene and benzofulvene respectively, moreover, their structures were characterized by NMR and MS.

本文以二茂铁基富烯和二茂铁基苯并富烯为前体，通过负氢和负碳对双键的加成，合成了3个新型的二茂铁基甲基取代的茚及环戊二烯，并对其结构进行了核磁及质谱表征。

Fifty-seven kinds of polycyclic aromatic hydrocarbon were detected by qualitative method,and sixteen kinds of those were mensurated by quantitative method.The results suggested that the average concentration of chry was the highest,21.83 ng/m3;the average concentration of fluoranthene was the second highest, 21.14 ng/m3; the mass c...

并对16种多环芳烃定量测定，结果表明：以屈艹为最高，平均值为21.83ng/m3；荧蒽次之，平均值为21.14ng/m3；苯并芘的质量浓度为14.52ng/m3，不满足GB3095-96中的质量浓度限值。2001～2003年检测结果对比表明，部分监测点空气中多环芳烃的浓度有下降的趋势。

Three new ferrocenylmethyl-substituted indenes and cyclopentadienes were synthesized by the addition of hydrogen anion and carbon anion to fulvene and benzo fulvene respectively, moreover, their structures were characterized by NMR and MS.

本文以二茂铁基富烯和二茂铁基苯并富烯为前体，通过负氢和负碳对双键的加成，合成了3个新型的二茂铁基甲基取代的茚及环戊二烯，并对其结构进行了核磁及质谱表征。

In this paper, the research and application progress on quinolines, benzimidazoles, and furazan etc deviatives of rosin were reviewed. The research foreground of rosin-based heterocyclic compounds were also forecasted.

本文对喹啉、苯并咪唑、呋咱等系列松香基杂环化合物的研究进展进行了综述，并对松香基杂环化合物的研究前景进行了展望。

Amino-6-nitrobenzodifuroxan was prepared through a three-step reaction from starting material 3, 5-dinitrobenzoic acid:(1)3, 5-dinitroaniline (1) was synthesized from the reaction of DNBA and hydrazoic acid in inert solvent 1, 2-dichioroethane through Schmidt rearrangement with yield of 89.6%;(2) 1 was subjected to nitration to prepare pentanitroaniline (2) with yield of 51.1%;(3) The title compound was prepared from 2 and sodium azide in acetic acid through denitrogenation and then Schmidt rearrangement with yield of 86.8%, m.p.204℃～206℃.

以3，5-二硝基苯甲酸为原料经过3步反应合成了7-氨基6-硝基苯并二氧化吠咱：第1步反应，在二氯乙烷惰性溶剂中，DNBA与叠氮酸反应并发生Schmidt重排反应生成3，5-二硝基苯胺(1)，产率89.6%；第2步反应，1在含100%硫酸的硝硫混酸中硝化生成五硝基苯胺(2)，产率51.1%；第3步反应，2与叠氮酸反应，不经分离直接进行热解脱氮、Schmidt重排反应，得到目标化合物， m.p.204℃~ 206℃，产率86.8%。

As we know, spiro-conjugated compound 1',3',3'-trimethyl-6-hydroxyspiro[2H-1-benzopyran-2,2'-indoline] is one of thesignificant photochromic species, the structure and spectrum ofthe compounds 1',3',3'-trimethyl-6- hydroxyspiro[2H-1-benzopyran-2,2'-indoline] and its isomers have studied.

三。研究了一类重要的光致变色物质之一螺旋共轭化合物1′，3′，3′-三甲基-6-羟基螺旋[2H-1-苯并吡喃-2，2'-二氢吲哚]及其光异构化产物的结构、光谱，并在此基础上，用完全态求和公式自编程序计算了非线性光学系数。

The second part focus on the synthesis of 4-(benzothiazol-2-yl)naphtho [1,2-d]oxzole derivatives.

第二部分是4-苯并噻唑基-[1，2-d]萘并噁唑衍生物的合成。

The third part is the spectroscopy of the 4-(benzothiazol-2-yl)naphtho[1,2-d]oxzole derivatives.

第三部分是4-苯并噻唑基-[1，2-d]萘并噁唑衍生物光谱性质的研究。

Organic fluorescent compound;(benzothiazol-2-yl)naphtho[1; 2-d]oxzole derivatives; UV spectroscopy; Fluorescent spectroscopy; Quantum yield

工程科技I，化学，有机化学有机荧光化合物；苯并噻唑基-萘并噁唑衍生物；紫外光谱；荧光光谱；量子产率

The invention is characterized in that phthalide of general formula, wherein n and X have the meaning cited in the description, is reacted with nitrogen heterocycles of general formula: H-Z, wherein Z has the meaning cited in the description, or with nitrogen heterocycle metal salts of general formula in the presence of an aprotic polar diluent and optionally in the presence of a basic auxiliary reaction agent.

本发明涉及制备通式的2－杂环基甲基苯甲酸衍生物的新的方法，其中n、X和Z具有说明书中给出的意义，该方法提供高收率和高纯度，其特征是，通式的2－苯并呋喃酮，其中n和x具有说明书中给出的含义，与通式的氮杂环：H－Z，其中Z具有说明书中给出的意义，或与通式的氮杂环的金属盐在质子惰性极性稀释剂中并任选在碱性反应助剂存在下反应。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。