酰化反应
- 网络acylation;Acylation reaction;acylating reaction
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考察了嘌呤环上的取代基及糖环上的2′-取代基对PEL催化嘌呤类核苷区域选择性酰化反应的影响规律。
The effects of the substituents in purine moiety and2 ' - substituents in sugar moiety on PEL-catalyzed regioselective acylation of purine nucleosides were studied .
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在此条件下,酰化反应收率达90%以上。
It was found that the yield of acylation was over 90 % .
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混合C8烯烃氢甲酰化反应的实验研究
Studies on Hydroformylation of Mixed C_8 Olefins
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均相催化体系中混合C8烯烃氢甲酰化反应条件的研究
Effect of reaction conditions on hydroformylation of mixed octenes ( 2,4,4-trimethyl-1-pentene and 2,4,4-trimethyl-2-pentene ) in homogeneous catalytic system
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HPLC法监控头孢拉定生产中的酰化反应与萃取操作
Monitoring the acylating reaction and extraction process of cefradine by HPLC
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方法以2,6二甲基苯胺为起始原料,经氯乙酰氯N酰化反应和2吡咯烷酮的N烷基化反应合成了奈非西坦。
METHOD Nefiracetam was synthesized by N acylation of2,6 dimethylbenzenamine with chloroacetylchloride and N alkylation of2 pyrrolidone .
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Hβ分子筛催化的甲苯与乙酸酐(AA)酰化反应研究
Acylation of toluene with Acetic Anhydride over h β zeolite
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利用马来酸酐和邻苯二甲酸酐在均相条件下与壳聚糖发生N酰化反应,制备了一系列水溶的N酰化壳聚糖。
A series of water soluble N-maleyl chitosan and N-phthaloyl chitosan was synthesized in an acid homogeneous solution under room temperature .
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Cu2(μ-OMe)2/SiO2的结构与催化乙烯氢甲酰化反应性能的研究
Study on the Structure of Cu_2 (μ - OMe ) _2 / SiO_2 Catalyst and Its Ethylene Hydroformylation Behaviors
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液/液两相体系中铑(Rh)催化油醇氢甲酰化反应研究
Liquid / Liquid Two-phase Hydroformylation of Oleyl Alcohol Based on Rhodium Catalysts
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用特戊酰氯对吲哚-3-丙酸上的N进行保护,然后用氯化亚砜和三氯化铝进行酰化反应关环。
The N of indole-3-propionic acid is protected by pivaloyl chloride , and then thionyl chloride and aluminum chloride for acylation cyclization . 2 .
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铁钴异核簇HFeCo3(CO)(12)在丙烯氢甲酰化反应中催化作用的研究
A Study of the Catalytic Properties of the Cluster HFeCo_3 ( CO ) _ ( 12 ) in Hydroformylation of Propene
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铵盐添加剂对Rh催化高碳烯烃氢甲酰化反应的影响
Influences of Ammonium Salt Additives on Hydroformylation of Higher Olefins Catalyzed by Rhodium
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CO2(CO)8-Ru3(CO)(12)体系对乙烯氢甲酰化反应的双金属协同效应
Synergistic effect in bimetallic carbonyls of co_2 ( co ) _8-ru_3 ( co ) _ ( 12 ) for hydroformylation of ethylene
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Rh4(CO)(12)和[Rh(CO)2Cl]2催化1&己烯氢甲酰化反应研究
Hydroformylation of Hexene-1 with rh_4 ( co ) _ ( 12 ) and [ rh ( co ) _2cl ] _2
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7-氨基头孢烷酸和2-甲氧亚氨基-2-(2-氨基-4-噻唑基)-(z)-硫代乙酸苯胼噻唑酯(AE活性酯)发生酰化反应生成头孢噻肟酸,收率90%。
Cefotaxime acid was synthesized by 7-ACA and AE active ester , the yield was 90 % .
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PMP的酰化反应及其产物萃取性能的研究
The Study of Acylation of PMP and Extractability of the Products
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研究了2,4二氟联苯的Friedelcrafts酰化反应的特性。
The Friedel-Crafts acetylation reaction of 2,4 difluorobiphenyl was studied .
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三氟乙酸酐催化的Friedel-Crafts酰化反应&4-乙基-2,5-二甲氧基苯基烷基酮的合成
Friedel-Crafts Acylation Reactions Catalyzed by Trifluoroacetic Anhydride-Synthesis of 4-Ethyl-2,5-dimethoxyphenyl Alkyl Ketones
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利用Grignard试剂的甲酰化反应合成对甲氧基苯甲醛
Synthesis of 4-Methoxybenzaldehyde Based on the Formylation Reaction of Grignard Reagent
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通过对相关的分子筛进行表征,结果表明,影响酰化反应活性的主要因素是B酸中心的酸强度,而稳定性与B酸中心在分子筛表面上的分布有关。
The corresponding zeolites were characterized . The results showed that the main factor affecting the activity was the strength of Br ? nsted acid sites and the stability was related to the distribution of the Br ?
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DCM和DMF对DCC-HOBt系统催化酯化及酰化反应的影响
Effect of DCM and DMF on Esterification and Acylation in DCC-HOBt System
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1-丁烯氢甲酰化反应制戊醛是C4资源综合利用的有效途径之一。
The reaction " pentanal synthesis via hydroformylation of 1-butene " is one of C4 resources comprehensive utilization effective ways .
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DMAP在高位阻醇酰化反应中的催化活性
Application of DMAP on the acylation of a high sterically hindered alcohol
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作者重点考察了OPGPP/Rh(acac)(CO)2配合物催化剂对1-辛烯氢甲酰化反应及OPGPP/Ru3(CO)(12)配合物催化剂对烯烃加氢反应的催化活性。
We studied the hydroformylation of 1-octene catalyzed by OPGPP / Rh ( acac )( CO ) 2 complex .
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F-C酰化反应脱除焦化苯中噻吩的研究
Study on Separating Thiophene from Coking Benzene by Friedel-Crafts Acylation Reaction
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酸酐参与的Friedel-Crafts酰化反应研究
Research on thee Friedel-Crafts reaction I experimental research on the Friedel-Crafts reactions participated by carboxylic acid anhydrides
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实验结果表明,OPGPP/Rh(acac)(CO)2配合物可很好地催化1-辛烯氢甲酰化反应。
Experimental data showed that hydroformylation of alkene catalyzed by OPGPP / Rh ( acac )( CO ) 2 complex proceeded smoothly .
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本文以吡咯为起始原料,通过Suzuki交叉偶联反应,酰化反应等步骤合成了9种2-位酰化的吡咯化合物。
In this thesis , acyl pyrroles of nine kinds were synthesized through the Suzuki cross-coupling reaction , acylation reaction stepts from pyrrole .
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以维生素C作为催化剂应用于合成阿司匹林。考察了反应时间、反应温度、催化剂用量、酸醇摩尔比等对水杨酸酰化反应的影响,选择了最佳条件。
Vitamin C was first used as a catalyst in the synthesis of aspirin , The effects of reaction time , reaction temperature , amount of catalyst and ratio of acid to alcohol on the reaction were examined and the optimum reaction conditions were determined .