1)tetrahydropyran四氢吡喃
1.6%, while m-aminophenol was used as material, tetrahydropyran as hydroxyl shielding effect agent, ethyl bromide as ethyl reactant and dimethylsulfate as methyl reactant.采用间氨苯酚为原料,以四氢吡喃(THP)作羟基保护剂,以溴乙烷作烷基化试剂,硫酸二甲酯作甲基化试剂,在原有最优化合成工艺条件下,经4步反应合成N-乙基间甲氧基苯胺,产率达到57。
2.4-Chloro-6-phenyl-2-(2-oxopropyl)tetrahydropyran was obtained unexpectedly by the Prins reaction of 4-methyl-1,8-nonadiene-4,6-diol and benzaldehyde in the presence of indium trichloride in methylene chloride at room temperature.以4-甲基-1,8-壬二烯-4,6-二醇为Prins反应的起始原料,在三氯化铟存在下与苯甲醛反应,得到了2-(2-氧代丙基)-6-苯基-4-氯四氢吡喃。
3.9%,while m-aminophenol is used as reactant,tetrahydropyran as hydroxyl shielding effect agent,acetic anhydride as acyl protection reactant and amidogen mono-substituted alternative reactant,ethyl bromide as ethyl reactant,dimethylsulfate as methyl reactant.采用间氨苯酚为原料,以四氢吡喃(THP)作羟基保护剂,以醋酸酐作酰基保护剂和氨基单取代的专一选择剂,以溴乙烷作烷基化试剂,硫酸二甲酯作甲基化试剂,在原有最优化合成工艺条件下,经六步反应合成N-乙基间甲氧基苯胺,产率达到65。
英文短句/例句
1.Synthesis of 4-Chloro-6-Phenyl-2-(2-Oxopropyl)Tetrahydropyran2-(2-氧代丙基)-6-苯基-4-氯四氢吡喃的合成
2.Synthesis, Structure and Catalytic Activity of Organolanthanide Complexes with Tetrahydro-2H-pyranyl Substituted Fluorenyl Ligands;含四氢吡喃取代芴稀土金属配合物的合成、表征及催化性能的研究
3.Synthesis, Characterization and Catalytic Activity of Divalent Lanthanide Complexes with Tetrahydro-2H-pyranyl-Functionalized Indenyl Ligands;含四氢吡喃取代茚基二价稀土配合物的合成、表征与催化活性研究
4.Synthesis of Silicotungstates and Their Catalytic Performance for Tetrahydropyranylation of Alcohol硅钨酸盐的合成及其在醇的四氢吡喃化反应中的催化性能
5.The Synthesis of Derivations of 5-oxo-4H-5,6,7,8-tetrahydrobenzopyran with Microwave Assisted;5-氧代-4H-5，6，7，8-四氢苯并吡喃衍生物的微波全合成
6.Fast increase in demand of tetrahydrofuran and poly-tetrahydrofuran;四氢呋喃和聚四氢呋喃需求快速增长
7.Solubility of 1,2-Ethylenediamine、Pyridine Triethylamine、Tetrahydrofuran in Water and Technological Process Research of Tetrahydrofuran;乙二胺、三乙胺、四氢呋喃、吡啶在水中的溶解度及其工程治理
8.Synthesis and Characterization of 5-Oxo-Tetra Hydro-4H-Benzo[b]Pyran Derivatives;5-氧代四氢苯并［b］吡喃衍生物的合成及结构表征
9.TBAB-THF Hydrate Mixture as a Cold Storage Medium四丁基溴化铵-四氢呋喃系蓄冷水合物
10.Quantum Chemical Study of the Thermolysis of Chroman苯并二氢吡喃热分解反应的量子化学研究
11.Synthesis and Activities of 2,3a-Dihydro-chromeno-[4,3-c]pyrazol-3-one Derivatives2,3a-二氢-苯并吡喃[4,3-c]吡唑-3-酮类衍生物的合成及其活性
12.Vapor--Liquid Equilibrium Data for Methanol-Tetrahydrofuran-Potassium Acetate System甲醇-四氢呋喃-乙酸钾体系汽液平衡
13.A Tandem Reformatsky-Cyclization Reaction to Synthesize Substituted Tetrahydrofurans;Reformatsky-环化反应合成取代四氢呋喃
14.Production, Consumption and Demand Prediction of Tetrahydrofuran at Home and Abroad;国内外四氢呋喃生产消费及需求预测
15.Synthesis of Tetrahydrofuran and Propylene Oxide Copolyether四氢呋喃—环氧丙烷共聚醚的合成研究
16.The synthesis of R-(+)-thiotetrahydrofuran-2-carboxylic acidR-(+)硫-代四氢呋喃-2-甲酸的合成
17.Synthesis of (S)-5-oxotetrahydrofuran-2-carboxylic acid(S)-5-氧代四氢呋喃-2-甲酸的合成改进
18.Tetrahydrofuran polymerization catalyzed by organic-inorganic hybrid clay有机-无机杂化黏土催化四氢呋喃聚合
相关短句/例句
tetrahydropyran ether四氢吡喃醚
1.As an effective protection for hydroxy group in alcohols and phenols,the methods for the formation of tetrahydropyran ether and its cleavage employed in the last 15 years are reviewed.从四氢吡喃醚的合成及脱除方法介绍了二氢吡喃这种羟基保护试剂近十几年来在有机合成中的应用。
3)Tetrahydro-4H-pyran-4-one四氢吡喃酮
4)amylene oxide ring四氢吡喃环
5)tetrahydrobenzo[b]-γ-pyran四氢苯并吡喃
1.K_2CO_3 as the base,aromatic aldehyde,malononi- trile and 5,5-dimethyl-1,3-cyclohexanedione were condensed to form tetrahydrobenzo[b]-γ-pyran derivatives in a solvent-free one-pot process under grinding.四氢苯并吡喃衍生物在药物和农药研究中有着广泛的用途。
6)tetrahydrobenzo[b]pyran四氢苯并[b]吡喃
1.One-Pot Synthesis of 2-Amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo- 4H-5,6,7,8-tetrahydrobenzo[b]pyran in Aqueous Medium;水中“一锅法”合成2-氨基-3-氰基-4-芳基-7,7-二甲基-5-氧代-4H-5,6,7,8-四氢苯并[b]吡喃
延伸阅读
四氢吡喃分子式：C5H10O分子量：86.13CAS号：142-68-7性质：无色液体。沸点为88℃。制备方法：暂无用途：医药中间体。
