苯并

Synthesis process Molecular Formula:〓 Molecular Weight: 394 Chemicla name: N-(2, 3-dihydro-2, 7-dimethyl-benzofuran-1-acyl)-N'-tert-butylN'-(3, 5-dimethyl benzoyl) hydrazine Structural formula:〓 This article define a synthesis method of JS118 with (2, 3-dihydro-2, 7-dimethylbenzofuranyl)-6-formic acid, tert-butyl hydrazine hydrochloride acid and 3, 5-dimethyl benzoic acid as main intermediate through four steps of reaction involving, acyl chloridation condensation and so on.

本文主要的研究工作内容：(1)以N-特丁基双酰肼为先导结构，利用分子等排原理和类同合成法进行先导设计，有目的、有选择地重点改变R〓、R〓基团，将具有不同取代基的苯环以及呋喃环、苯并呋喃环、吡咯环、吡啶环等杂环、稠杂环与先导结构进行有机的组合。

And then the intermolecular reductive cyclization reaction of N,N-diethyl-o-nitrobenzenesulfonamide with nitriles promoted by samarium diiodide was studied. 2H-1,2,4-Benzothiadiazine 1,1-Dioxides were prepared in good yields under mild and neutral conditions.

然后研究了二碘化钐促进的邻硝基N，N-二乙基苯磺酰胺与腈发生的分子间交叉还原偶联反应，一步合成了2H-1，2，4-苯并噻二嗪-1，1-二氧化物。

This paper introduces the RH-2 H solventless impregnating varnish based on diphenylene ether with polybenzoxazine and unsaturated polyester.

本文介绍了一种以聚苯并噁嗪和不饱和聚酯来改性甲氧基二苯醚树脂合成了RH-2H级无溶剂浸渍漆。

A study on HPLC analysis of benzopyrene in grain;2. Induction of EROD activity was investigated by an in vitro assay based on benzopyrene and hexa chlorobenzene .

用7-乙氧基异叻唑酮-脱乙基酶检测的方法，研究了苯并芘和六氯苯对日本青鳉肝脏EROD酶的比活力的影响。

Isopropyl 1,3 benzodioxolane was synthesized from catechol and isobutyric aldehyde using the phosphotungstic acid supported on activated carbon as catalyst.

以邻苯二酚和异丁醛为原料，活性炭固载磷钨酸为催化剂合成了杀虫剂呋喃丹的中间体2 -异丙基- 1，3-苯并二氧五环。

Third, we studied the N-alkylation of phthalimide, indole, benzimidazole, succinimide with a variety of halogen in ionic liquid [BF4], [PF_6]. The present method has many obvious advantages, compared to those reported in the literature, including the generality, simplicity of the methodology, the ease of product isolation, the higher yield and potential for recycling of ionic liquids.

第三、研究了离子液体[BF_4]、[PF_6]和BF_4促进邻苯二甲酰亚胺、吲哚、苯并咪唑、丁二酰亚胺的N-烷基化反应，克服了传统溶剂中进行N-烷基化反应要求强碱、反应条件苛刻、时间长、产率一般的不足，改善了反应条件、提高了产率。

PBO spinning solution was prepared from 4,6-diaminoresorcinol diphosphate in polyphosphoric acid by solution poly-condensation.

将稳定化后的单体和对苯二甲酸在PPA的介质中进行缩聚反应可以得到具有高聚合度（特性粘数=17dL／g）的聚亚苯基苯并二嗯唑。

Evaluation of some Mannich bases of conjugated styryl ketones and related compounds versus the WiDr colon cancer in vitro.

朱志宏，徐秀娟。2，4-二羟基-3-芳氨基甲基苯乙酮和8-乙酰基-3-芳基-3，4-二氢-5-羟基-2H-1，3-苯并噁嗪的合成及其相互转化。

The calculations of harmonic vibrational frequencies with B3LYP/6-31Gtheoretically supported that o-dinitrosobenzene is the intermediate of "self-self"tautomeric rearrangement of benzofuroxan.

谐振动频率的B3LYP/6-31G计算还支持了邻二亚硝基苯为苯并氧化呋咱&自-自&互变重排反应的中间体。

The experiment results indicated that the comprehensive interaction mode of Y with DNA might be that the dibenzofuran ring of Y intercalated into DNA base pairs and the benzene ring in side chain bind to DNA in the groove.

以曙红Y为模型化合物，实验表明可能Y中的二苯并吡喃环嵌入了DNA的碱基对之间，其侧链的苯环键合在DNA的沟槽中。

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。