溴化后与2-氨基-5-甲基吡啶反应生成咪唑吡啶。
This is brominated and reacted with 2-amino-5-methylpyridine to give the imidazopyridine.
考察了格氏试剂的溶剂、反应物盐酸吡啶和三溴化硼对脱甲氧基收率的影响。
The effects of solvent of Grignard reagent, pyridine hydrochloride and boron tribromide on yield of product were investigated.
采用正丁醇-氢氧化钠反应体系,以十六烷基三甲基溴化铵为相转移催化剂,制得脱乙酰度为92%的壳聚糖。
The chitosan was prepared with 92% deacetylation degree using n-butanol and sodium hydroxide as a reaction medium and cetyltrimethylammonium bromide as a phase transfer catalyst.
应用纳米铟、铋、锡在水相中成功地促进了多种羰基化合物和巴豆基溴的丁烯基化反应,在短时间内得到了高产率的高烯丙醇。
Indium, tin and bismuth nanoparticles successfully mediated crotylation of carbonyl compounds in water to afford the corresponding homoallylic alcohols with good to excellent yields in a short time.
探讨了用溴酸钾—磷酸体系溴化苯乙酮的溴化新方法,并讨论了影响反应收率的几个因素。
In this paper, we reported a new method of bromination of acetophenone using potassium bromate in phosphoric acid. Some factors that effect yield are also discussed.
在第二章中,通过理论计算对金催化的溴代连二烯酮环异构化反应的机理进行了研究和讨论。
In the second chapter, the mechanism of the gold-catalyzed cycloisomerization of bromoallenyl ketone was investigated and discussed.
在DMF-四乙基溴化铵(TEAB)质子惰性介质中,马蔺子素连续两步单电子还原生成相应氢醌阴离子,无中间体半醌自由基的化学反应发生。
In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.
以对甲酚为原料经溴化、水解、甲氧基化和甲基化4步反应合成药物中间体3,4,5-三甲氧基苯甲醛,总收率达53。
The 3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.
第一部分是以基于锌粉-溴丙炔体系的、非对映选择性的炔丙基化反应为关键步骤,合成天然及类天然产物。
The first part describes the syntheses of natural products and natural-like products by means of diastereoselective propargylation as the key step.
以二溴化芳香酮和芳香二胺为单体,通过钯催化的胺化缩聚反应合成了新型聚合物——聚亚胺酮,其结构经1HNMR,IR和元素分析确认。
Novel poly(imino ketone)(PIK) was synthesized via palladium catalyzed polycondensation reaction. The structures of PIK were confirmed by 1H NMR, IR and elemental analysis.
用薄层色谱法监测溴素溴化乙酰丙酸乙酯生成3-溴乙酰丙酸乙酯的反应过程,优化了反应条件,方法简单,快速,准确。
A simple TLC method for monitoring the synthetic process of 3-bromo-ethyl levulinate is reported, and the reaction condition is optimized.
有机合成法按糖苷化反应糖基给体不同可分为糖基溴苷给体和酰基给体两种方法。生物转化方法是利用生物体为转化体系合成熊果苷。
Organic synthesis can be classified into two ways based upon different donor of glycosyl groups in the glycosidation, namely glycosyl-bromo-glycoside donor and acyl donor.
研究了原料配比、反应温度、催化剂等因素对覆铜板专用溴化环氧树脂合成新工艺的影响。
The effects of the feed ratio of raw materials, reaction temperature and the dosage of catalyst, etc factors on the new synthesis process of brominated epoxy resin for copper clad panel were studied.
通过添加适量四丁基溴化铵为相转移催化剂,使用过量的亚磷酸二异丙酯以补偿其在强碱环境中的水解,从而提高了反应产率。
The yield was increased through adding tetrabutyl ammonium bromide as the phase transfer catalyst, and using excessive diisopropyl phosphite to compensate its hydrolyzation.
本文研究了用镉-甲基百里香酚蓝-溴化十六烷基三甲基铵三元络合物光度测定镉的反应条件和络合物组成。
In this paper the condition and composition of the ternary complex for determination of cadmium with Cd-methyl thymol blue-cetyl trimethyl ammonium bromide have been put forward.
对溴苯酚经烷基化、硫酸二甲酯醚化、缩合及水解反应制得阿达帕林,总收率51%。
Adapalene was synthesized from 4-bromophenol by alkylation, etherification, condensation and hydrolysis with an overall yield of 51%.
以溴化锌为催化剂,在无溶剂条件下实现了醇与苯甲酸酐的酰化反应,部分产物经NMR和IR表征。
Acetylation between alcohol and benzoyl oxide was carried out using ZnBr_2 as a Lewis acid catalyst in solvent-free condition. Some structures were characterized by NMR and IR.
以1,3-二甲基金刚烷为原料,经溴化、乙腈和硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚,总收率6 7。8%。
Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.
西司他丁钠的合成以乙酰乙酸乙酯和1-溴-5-氯戊烷为原料,经活性亚甲基烃化、成肟和水解3步反应得7-氯-2-氧庚酸乙酯;
The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;
西司他丁钠的合成以乙酰乙酸乙酯和1-溴-5-氯戊烷为原料,经活性亚甲基烃化、成肟和水解3步反应得7-氯-2-氧庚酸乙酯;
The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;
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