β-酮酯,β-Keto ester
1)β-Keto esterβ-酮酯
1.[AIM]To study an improved process for the preparation of a Key Intermediateβ-Keto ester of Huperzine A (6).目的,研究石杉碱甲关键中间体β-酮酯的合成路线及工艺;方法,以7,8-二氢-1-甲氧基萘(1)为起始原料,经羰基化反应、环氧化物异构化、双环环化得β-酮酯,总收率8。
2.Liquid-phase synthesis of methyl 6-amino-5-cyano-4-aryl-2-methyl-4H-pyran-3-carboxylates was achieved using ionic liquid boundβ-keto esters and arylmethylidenemalononitriles.报道了以离子液体1-(2-羟丙基)-3-甲基咪唑六氟磷酸盐为支撑试剂,β-酮酯和芳亚甲基丙二腈为原料,液相合成了11种6-氨基-5-氰基-4-芳基-2-甲基-4H-吡喃-3-羧酸甲酯化合物的新方法,产率83%～90%,纯度96%～99%。
2)β-Keto estersβ-二酮酯
1.Methyl 3-oxo pentanoate as the reactant,some β-keto esters can be prepared by gas chromatography.以3-氧代戊酸甲酯为反应物,在气相色谱上在线制备了一些β-二酮酯类化合物,用HP-5色谱柱分离了烯醇式和酮式互变体,并讨论了3-氧代戊酸酯化合物"纯"的烯醇式和酮式互变体的质谱图断裂机理。
英文短句/例句
1.Study on the Tautomerism of β-Keto Esters by Gas Chromatography;气相色谱研究β-二酮酯化合物的互变异构
2.Study on the Catalytic Behaviors of β-diketone Ti、Zr in Ring-Opening Polymerization of Lactide;β—二酮Ti、Zr催化丙交酯开环聚合研究
3.Syntheses and Structures of Lanthanide Complexes Supported by β-Diketiminato Ligand Systems and Their Catalytic Activity for the polymerization of ε-caprolactone;β-二酮亚胺基稀土配合物的合成、结构及催化已内酯聚合研究
4.Study on Poly(ether ketone ether ketone ketone)Modified with 4,4′ Bis(β naphthoxy)diphenylsulfone4,4′-二(β-萘氧基)二苯砜改性聚醚酮醚酮酮的研究
5.Research in Synthetic Methodologies of Cyclopentenone Esters and α,β-Unsaturated Esters;环戊烯酮酯和α，β-不饱和酯的合成方法研究
6.Synthesis and Property of 1, 1"-Disubstituted Alkylferrocenyl β-Diketones;1’-烷基二茂铁基β-二酮的合成与性质
7.Theoretical Study of β-Diketiminate Zinc Complexesβ二酮二亚胺Zn配合物的理论研究
8.Researches on the Preparation of β-Enamino Ketones/Esters and Nitrles;β-胺基烯酮/酯类及腈类化合物的合成方法研究
9.SYNTHESES AND CHARACTERIZATION OF BIS [ SUBSTITUTED ACETOPHENONYL-β-DIKETONYL ] COPPER (Ⅱ)双〔取代苯乙酮基β-二酮基〕合铜(Ⅱ)的合成及表征
10.Synthesis of Sulfonamide-Containing Aryl β-Diketo Acid and Quinoxalone Derivatives;磺酰胺芳基β-二酮酸及喹噁啉酮衍生物的合成
11.Reactions of Acylthiobenzothiazole with Ethyl Acetoacetate, Diethyl Malonate and Pentane-2, 4-dione酰硫基苯并噻唑与丁酮酸乙酯、丙二酸二乙酯及戊二酮的反应
12.STUDIES ON PROPERTIES OF Eu(Ⅲ)-β-DIKETONE-ORGANO BASE COMPLEXES铕（Ⅲ）－β－二酮－有机碱配合物的性质研究
13.Thermochemistry of Ti,Zr,Sn Coordination Compounds with ;β-diketones and Esters钛、锆、锡——β二酮配合物的热化学研究
14.Preparation of a new β-diketone compound with carbazole and long chain end-alkene groups咔唑功能化的长链端烯β-二酮的制备
15.Coupling Reaction of β-Dicarbonyl Compounds几种β-二酮类化合物的氧化偶联反应
16.-methyl chalconeβ－甲基查耳酮 β
17.Synthesis of Methyl Propionate from Dimethyl Carbonate and 3-Pentanone over Solid Base Catalyst固体碱催化碳酸二甲酯和3-戊酮合成丙酸甲酯
18.The Reaction of Diethylα-chlorohydrocarbonradical phosphonate with Aldehydes and Ketones;α-氯代烃基膦酸二乙酯与醛酮的反应
相关短句/例句
β-Keto estersβ-二酮酯
1.Methyl 3-oxo pentanoate as the reactant,some β-keto esters can be prepared by gas chromatography.以3-氧代戊酸甲酯为反应物,在气相色谱上在线制备了一些β-二酮酯类化合物,用HP-5色谱柱分离了烯醇式和酮式互变体,并讨论了3-氧代戊酸酯化合物"纯"的烯醇式和酮式互变体的质谱图断裂机理。
3)β-keto esterβ-酮酸酯
1.The research pr ogress of asymmetric hydrogenation ofβ-keto ester by metal chiral catalyst in recent years are reviewed.本文综述了β-酮酸酯在多相、均相和两相体系中不对称加氢的最新进展。
2.A new electron-donating diphosphine (R)-MeO-P-Phos [(R)-2,2 ,6,6 -tetramethoxy-4,4 -bis[di- (4-methoxylphenyl)phosphino]-3,3 -bipyridine] has been synthesized and its application to the asymmetric hydrogenation ofβ-keto esters catalyzed by ruthenium complex was explored.合成了新型联吡啶手性双膦配体(R)-MeO-P-Phos[(R)-2,2",6,6"-四甲氧基-4,4"-二(二(对甲氧基)苯基膦基)-3,3"-联吡啶)],并将其用于β-酮酸酯不对称加氢反应。
4)β-ketoestersβ-酮酸酯
1.Synthesisβ-ketoesters with the Reaction of Dimethyl Carbonate to Ketones Over Solid Base;固体碱催化酮类化合物与碳酸二甲酯合成β-酮酸酯的反应研究
2.An effcient transesterification ofβ-ketoesters with ethyl 4-2[2-(phthalimido)ethoxy]acetoacetate and S-(+)-β-methoxy-phenylethanol as raw materials and boric acid as catalyst is described.以β-酮酸酯类化合物4-[2-(邻苯二甲酰亚胺基)乙氧基]乙酰乙酸乙酯为起始原料,与S-(+)-β-甲氧基-2-苯乙醇进行酯交换反应,合成了4-[2-(邻苯二甲酰亚胺基)乙氧基]-1-(2S-β-甲氧基苯乙基)丁酸酯。
5)β-ketoesterβ-酮酸酯
1.A mild method for preparation of 1,4-diketone via the intermolecular coupling of substituted arylβ-ketoesters by use of cerium ambmonium nitrate in CH3CN/H2O has been reported.报道一种制备芳基取代的1,4-二酮类化合物的温和简便方法,以乙腈水溶液为溶剂,硝酸铈铵为氧化剂,对芳基取代的β-酮酸酯进行氧化偶联,最高可以94%的产率得到双分子二聚产物,为硝酸铈铵对1,3-二酮类化合物的氧化反应机理提供了有力证据。
2.In this work we decribed a totally new method for the constructing of this structural unit by employing indirect electrolysis,namely,using KI and NaI as the indirect electrolyte,water as solvent and reagent,the γ-alkylation products of β-Ketoesters as the starting material.以γ-烯基-β-酮酸酯为原料,K I-NaI为间接电解质,水为溶剂及试剂,利用电解合成的工艺方法,以满意的收率和较高的选择性合成了13个2-亚烷基-5-羟甲基四氢呋喃化合物,优化了合成条件,并探讨了适宜的底物结构特征。
6)β-Diketone/β-ketone esterβ-二酮/β-酮酯
延伸阅读
β,β"-(苄基亚氨基)二丙酸二乙酯分子式：C17H25NO4分子量：307.39CAS号：暂无性质：暂无制备方法：暂无用途：氟哌啶的中间体。
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