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1.
STUDIESONTHESYNTHESISOFSESAMIN-GROUPLIGNANSV.ACONVENIENTMETHODFORTHEPREPARATIONOF2-ARYL-4-PHENYLOXAZOLES¥Correspondentauthor.2-aryl-4-phenyloxazoles.Theotherollebythereactionofa-methylphenacylbenzoatewithammoniumacetateinboilingaceticacidtoformafutureof2,4-diphenyl-5methyloxazoleand2,4-diphenyl-5-rnethylinddazolebothinabout40%yield,hilttillsmethodisapplicableforthepreparationof2-aryl-4-phenyloxazoles.Byanalogy,plienacylbenzoateisalloallowedtoreactwithalnmonillmacetateinboilingaceticacid.Amixtureof2,4-diph  相似文献   

2.
CrystalandMolecularStructureof5,6,7,8,9,10-Hexahydro-3-(4-methylphenylamino)-2-thioxoquinoxalineSunDa-Qing;LangJian-Ping;LuZh...  相似文献   

3.
SYNTHESISOF6,6''''-DIMETHYL-4',4'''-DIPHENYL-2,2':6',2'':6'',2''':6''',2'''-QUINQUEPYRIDINEANDITSBINUCLEARDOUBLEHELICALCOPPER...  相似文献   

4.
STRUCTURALMODIFICATIONOF11-ISOPROPYLIDENEendo-TRICYCLO[6.2.1.0 ̄(2,7)]UNDECA-4,9-DIENE-3,6-DIONETOIMPROVETHESTABILITY¥XiaoPeiG...  相似文献   

5.
SynthesisandCrystalStructureofPyridine-2,6-dicarboxylateVanadiumComplex:[(Pyridine-2,6-dicarboxylate)VO_2]_2[4,4'-bipyridine]·...  相似文献   

6.
CrystalStructureof1,6:3,4-Dianhydro-β-D-galactopyranose-2-O-p-tolylsulfonate(C_13H_14O_6S)WangAn-Lai;LuShi-Jie;FuHong-Xiang;Wa?..  相似文献   

7.
StudiesontheReactionof3-Substituted-4-Hydroxy-2H-1,2-Benzothiazine1,1-DioxideswithPhenylIsocyanate¥Guo-FengZHAO;RongJianLU;Hu...  相似文献   

8.
CrystalStructuresofN,N'-Bis(4-chlorophenyl)-1,10-diaza-18-crown-6andItsComplexwithBa(SCN)_2¥ZhangLi-Juan;LiuXiao-Lan;MaShi-Ku?..  相似文献   

9.
OZONOLYSISOF4-ISOPROPYLIDENEPENTACYCLO(5.4.0.0 ̄(2,6).0 ̄(3,10).0 ̄(5,9))UNDECANE-8,11-DIONE¥JianGuangSUN;ZhuangSU;YongZhongYU(C...  相似文献   

10.
SYNTHESIS OF 5-SUBSTITUTED-2-CHLORO-6-METHYL-4, 7-DIOXOBENZOTHIAZOLE DERIVATIVES¥CuiHuaLIU;BinLU;JingLingZHANG(Instituteoforg...  相似文献   

11.
SynthesisandCrystalStructureof△~6-4-Amino-5,6-diphenyl-5-hydroxy-1,2,4-triaza-cyclohexene-3-thione-monohydrate¥LinZhen-Guang;?..  相似文献   

12.
ThisinveshgationwassupportedbyTheNationalNaturalScienceFoundationofCllilla.geniusweret ̄ParentinUV,sothe2,4-etsand2,4tranS-isomerswereregardedasasingleconstituent(amixtUreof2-epimers)inanearlierreport.WesuccessfullyseattedisoaunonareticindiacetatestOtWoiSOmers,2,4ets-and2,4 ̄-isoannonareticindiacetatesbypreparativeTLCfromA.reticubo.OneOfthePair,2,4-ets-isoannonareticin,isanewnaturalproductandanother,2,4-tranS-isoannonarehcinisaknownbullatacinone.3ComPOundIwasobtainedcrystalline,mp.72-73"C.TheFAB-MSgavethePea  相似文献   

13.
CrystalStructureof3-Methyl-9-(O,O-Diethylphosphoryl)Methyl-1,6,12-Trioxa-9-Aza-5-Germaspiro[4,7]Dodecan-2-One¥ChenRu-yu;LiuLu...  相似文献   

14.
设计并合成了2,6二苯基-p-苯醌-4-氯亚胺1c,作为一个新的使酚类显色的Gibbs试剂,与酚类在碱性溶液中生成兰绿色的2,6-二苯基靛酚盐2c。由于苯基的引入,扩大了靛酚的共轭体系和极化效应,故2,6=二苯基靛酚盐2c的λ_(max)和ε_(max)都比相当的2,6-二氯靛酚盐2a为大。2c经酸化后成为红色的游离2,6-二苯基靛酚,具有良好的化学稳定性。  相似文献   

15.
Intramolecular Oxidative Transformations of 1,4-Diary1-2, 3-Dimethy1-2, 3-Epoxybutane with DDQIntramolecularOxidativeTransfor...  相似文献   

16.
STUDIESONGLYCOSIDESXVII─STEREOSELECTIVESYNTHESISOF(2,6-DIMETIIOXY-4-ETHOXYCARBONYL)PHENYL6-O-ACETYL-2,3,4-O-BENZYL-β-D-GLUCOP...  相似文献   

17.
STUDIESONTHESYNTHESISANDREACTIONSOFN-(1-OXO-4-CARBONYL-2,6,7-TRIOXA-1-PHOSPHABICYCLO[2.2.2]OCTANE)-N’-ARYLTHIOUREASYuGuiLI;Xu...  相似文献   

18.
SynthesisandStructureof4,5-bis(2,4-Dinitrophenylthio)-1,3-Dithiole-2-ThioneQuZheng;CaiJing-Hua;FangQi;YouXiao-Zeng(Coordinati...  相似文献   

19.
合成了吡啶-2,6-二甲酸镧钇异核配合物晶体。元素分析结果表明,化学式为LaY(HDPA)_2·(DPA)_2.12H_2O,DPA为吡啶-2,6-二甲酸根。用X射线衍射法测定了配合物的单晶结构,其结构式为[LaY(HDPA)_2(DPA)_2(H_2O)_4」·8H_2O,属单斜晶系,P2_1/a空间群。晶胞参数:a=1.2975(4)nm,b=1.1266(3)nm,c=1.4079(3)nm;β=102;15(2)°,V=2.01190(1)nm ̄3,Z=4,Dc=1.83g/cm ̄3,稀土离子的配位数为9,其配位多面体为扭曲的三冠三角棱柱体。  相似文献   

20.
OxidativeCouplingofPhenolsby2,2,6,6-Tetramethyl-4-methoxypiperidineOxoammoniumChlorideOxidativeCouplingofPhenolsby2,2,6,6-Tet...  相似文献   

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