Methods for synthesizing 2,6-dihydroxybenzoic acid;
2,6-二羟基苯甲酸的合成方法初探
The main product was 2,6-dihydroxybenzoic acid.
2,6-二羟基苯甲酸(2,6-DHBA)是合成超高效除草剂KIH-2023及医药的主要原料。
The conclusion was obtained that synthesis of 2,6-dihydroxybenzoic acid in solvent was better than in water, suggesting that it should be a feasible method for synthesis of 2,6-dihydroxybenaoic acid with the purity of over 99%.
本文重点描述分析、比较了水相法、溶剂法合成2,6-二羟基苯甲酸的反应机理、反应条件及后处理方法,并由此得出结论:在溶剂中溶剂法合成2,6-二羟基苯甲酸从各个方面优于以水做溶剂合成水相法。
Using 3,5-dihydroxybenzoic acid as the reactant,4-bromo-3,5-dimethoxybenzaldehyde was prepared by four steps reaction,including bromization,methylation,condensation and oxidation,and the total yield was 18.
以3,5-二羟基苯甲酸作为原料,经过溴化、甲基化、缩合、氧化等四步反应合成了4-溴-3,5-二甲氧基苯甲醛,其总收率为18。
3,5-Dihydroxybenzyl alcohol is synthesized from 3,5-Dihydroxybenzoic acid by acylation and reduction by sodium borohydride reagent systems, which gives a convenient synthetic method.
以3,5-二羟基苯甲酸为原料,经酰化、硼氢化钠还原体系还原,合成了3,5-二羟基苯甲醇。
It was found that the reaction to 3,5-dihydroxybenzoic acid, sodium benzoate and catalyst are zero-, one-and one-order respectively.
研究了3,5-二羟基苯甲酸(DHB)为原料采用催化转移加氢法合成3,5-二氧代环己烷羧酸(DOC)的过程,得到了以5%Pd/C为催化剂、甲酸钠为氢供体的3,5-二羟基苯甲酸转移加氢宏观反应动力学。
Preparation of copper(Ⅱ) resorcylic nanometer catalyst;
二羟基苯甲酸铜纳米催化剂的制备
Color reaction and its analytical application of 3-(ben zothiazofeazo)-5-bromo-2,6-bihydroxy benzoic acid with copper
3-[苯并噻唑偶氮]-5-溴-2,6-二羟基苯甲酸与铜的显色反应及其应用
Synthesis of 3,5-di-tert-butyl-2,6-di-hydroxybenzoic Acid
3,5—二叔丁基—2,6二羟基苯甲酸的合成
2,5-dihydroxybenzoic acid
2,5-二羟基苯甲酸
2,4-dihydroxybenzoic acid
２,４－二羟基苯甲酸
Selective Oxidation of 4-Substituted-2, 6-di(hydroxymeth yl) phenols
4-取代-2,6-二(羟甲基)苯酚的选择氧化
butyl phthalybutyl glycollate
丁基苯二甲酰基羟乙酸
The Syntheses and Properties ef Polymeric Crown Ethers
2,6-二羟甲基酚类与苯并冠醚缩聚合成酚醛型冠醚聚合物
Preparation of 3,5-Dihydroxytoluene from Methyl 3,5-Dihydroxybenzoate by Catalytic Hydrogenation
3,5-二羟基苯甲酸甲酯催化加氢制备3,5-二羟基甲苯
STUDY ON THE SYNTHESIS OF 2,6-DIMETHYLANILINE WITH 2,6-DIMETHYLPHENOL BY GAS PHASE AMINATION;
2,6-二甲基苯酚气相胺化合成2,6-二甲基苯胺的研究
2,4-dihydroxybenzene carboxylic acid
２,４－二羟基苯羧酸
RHEOLOGICAL BEHAVIOUR OF THE COPOLYESTER CONTAINING PHB, TPA, RES AND BHP
含对羟基苯甲酸、对苯二甲酸、间苯二酚、4,4′-二羟二苯酮共聚酯的流变行为研究
Synthesis and Characterization of 2,6-Dimethoxyaniline
2,6-二甲氧基苯胺的合成与结构表征
Study on 2,6-DMBQ from fermented wheat germ
麦胚发酵产2,6-二甲氧基对苯醌的研究
Phendimetrazine pamoate (embonate)
双羟萘酸二苯甲吗啉
3 hydroxyanthranilic acid
3羟基2氨基苯甲酸
propyl para-hydroxybenzoate
丙基对羟基苯甲酸酯
hydroxyphenethyl ester
氨基甲酸β－羟苯乙基酯
Aldol Condensation of Diacetybenzene with Benzaldehyde Containing a Hydroxyl Group Catalyzed by p-Toluenesulfonic Acid
对甲苯磺酸催化下二乙酰苯与含有羟基的苯甲醛的Aldol缩合反应