4－羟基－2，5－二甲基－3（2H）呋喃酮的合成

总结了食品增香剂４－羟基－２．５－二甲基－３（２Ｈ）呋喃国的合成方法，包括近期的合成研究进展，对一些合成方法的优缺点作了评述。参考文献２８篇。     

Synthesis and Structure of [Cu（OH）2（H2O）2（4—C5H4N—COOH）2]

1 INTRODUCTION Supramolecular chemistry and crystal engineering of coordination compounds have attracted considerable interests nowadays owing to the fascinating structural diversity and potential applications as functional materials[1,2]. Generally, architectures of supramolecules are formed through hydrogen bonds, ?- ?stacking interaction or other weak interactions between the molecules. Recently, many supramolecular compounds containing silver(I) and copper(II) species have been re-…     

Synthesis and Structure of Dimolybdenum Carbonyl Thiolate Compound [Et4N]2[Mo2（CO）8（SC6H4—CH3—m）2]

1 INTRODUCTION In 1984, thiolate ligand was successfully introduced into molybdenum carbonyl compound by the reaction of Mo(CO)6 with [Et4N]SR( R = C6H5, But) in a moderate condition[1]. From then on, a series of dinuclear molybdenum(0) carbonyl thiolate compounds have been synthesized and characterized by using a variety of thiolate ligands in our research group. It was found that a planar Mo2S2 unit is in the compound [Et4N]2[Mo2(CO)8(SC6H4-CH_3-p)2][2] (2) and a "butterfly" t…     

Enamine Configuration of 5-Methyl-2-phenyl-4-[（Z）-3-tolylamino-phenylmethylene]pyrazol-3（2H）-one

1 INTRODUCTION In contrast to the old-line academic and practical studies of 1-phenyl-3-methyl-4-benzoyl-5-pyrazo- lone (PMBP) on the metal coordination chemistry[1], the complexes of β-ketoamines derivated from PMBP received little attention due to its complicated com- plexation. However, in recent years, there has a sudden growth of this area as a result of its timely interest in biological activities[2]. Recently, a series of β-ketoamines[3] containing PMBP have been prepared fro…     

Synthesis and Crystal Structure of Drum Organooxotin Clusters from Heteroaromatic Carboxylic Acid [PhCH2Sn（O）（O2CC5H4N）]6 and[PhCh2Sn）（O）（O2CC4H3O）]6

IntroductionRecentlywehaveinvestigatedthestructuralchemistryofanumberofdi ortri organotinheteroaromaticcarboxyl ates.1 5Thesestudieshaveshownthatthestructureoforgan otinheteroaromaticcarboxylatesisdependentonboththena tureofthealkylorarylsubstituentboundtothetinatomandthetypeofcarboxylateligand .Inparticular,majorstructuralvariationsareobservedwhencarboxylateligandcontainsanadditionaldonoratom ,suchasapyridineNatom ,availableforcoordinationtotheSnatom .1 3,5 8Wehavenowturnedtothemonoorganotin…     

Synthesis of Methyl-N-[4-(3-R-amino-2-hydroxypropoxy)phenyl]carbamates

By alkylation of methyl-N-(4-hydroxyphenyl)carbamate with (chloromethyl)oxirane in acetone in the presence of K₂CO₃ methyl-N-[4-(2,3-epoxypropoxy)phenyl]carbamate was prepared. The aminolysis of the latter effected by benzylamine, morpholine, piperidine, and pyrrolidine occurs in keeping with Krasusky rule to afford methyl-N-[4-(3-R-amino-2-hydroxypropoxy)phenyl]carbamates.     

[4-(4-苯甲酰基苯氧基)苯]苯基碘鎓六氟磷酸盐的合成

紫外光固化反应分为自由基固化机理、阳离子固化机理,以及自由基-阳离子混杂固化机理。自由基-阳离子混杂固化是指在同一体系里同时发生自由基光聚合反应和阳离子光聚合反应[1],结合了前两类聚合反应的优点,表现出很好的协同效应[2]。[4-(4-苯甲酰基苯氧基)苯]苯基碘鎓六氟磷酸     

2-甲基-N-[4-硝基-3-三氟(甲基)苯基]丙酰胺的改进合成

以3－三氟里基苯为原料,在吸酸剂碳酸氢钠作用下与2－甲基丙酰氯反应得到2－甲基－N－[4－硝基－3－三氟（甲基）苯基]丙酰胺,再进行混酸硝化得到目标化合物。     

Synthesis of （S）-2-（3-Arylacrylamido）-3-{4-[2-（5-methyl-2-phenyloxazol-4-yl）ethoxy]phenyl}propanoic Acids

The synthesis of （S）-2-（3-arylacrylamido）-3-{4-[2-（5-methyl-2-phenyloxazol-4-yl）etho- xy]phenyl}propanoic acids is described. Their structures were confirmed by ^1H-NMR.     

3-[(2-二甲基氨甲基)环己基]苯基乙酸酯盐酸盐的合成

以盐酸曲马多为起始原料,通过脱羟基,去甲基和乙酰化反应合成了一种新化合物3-[(2-二甲基氨甲基)环己基]苯基乙酸酯盐酸盐,其结构经1H NMR, MS和元素分析表征.     

3-[4-(咪唑)苯乙烯基]-9-乙基咔唑的合成及其性质研究

通过固相Wittig反应合成了一种新型含π电子共轭体系的咔唑衍生物——3-[4-(咪唑)苯乙烯基]-9-乙基咔唑(4),其结构经1HNMR,IR,MS,元素分析和X-射线单晶衍射表征。结果表明,4具有较高的热稳定性及优良的光学性质。