共查询到20条相似文献,搜索用时 31 毫秒
1.
IntroductionBiotransformationsofnitriles ,eitherthroughanitri lase catalyzeddirectconversiontothecarboxylicacidsorviaanitrilehydratase catalyzedhydrationtotheamidesfollowedbythehydrolysistotheacidsmediatedbyanamidase ,haveprovidedausefulandenvironmental… 相似文献
2.
IntroductionSyntheticnucleaseswhicheficientlyandselectivelymakenucleicacidscleavedundermildconditionshavemanyimportantpotenti... 相似文献
3.
Study on the Extraction of L-Phenylalanine with Organo-phosphoric Acid in Two and Three-phase System
Introduction Theextractionofaminoacidshasrecentlyattractedagreatdealofattention .Theycouldbeextractedintore versemicellesormicroemulsionswithasurfactantsuchasAOT [sodiumdi (2 ethylhexyl)sulfosuccinate].Lea didisetal.investigatedthepartitionofaminoacidsbe … 相似文献
4.
5.
ThebenzoylationoftoluenewithbenzoylchlorideisanimportantacidcatalyticFriedalCraftsreaction.Lewisacids,suchasdehydratedAlCl3an... 相似文献
6.
Introduction Enantioselectiveallylationofcarbonylcompoundsisoneoftheusefulandconvenientmethodfortheprepara tionofopticallyactivesecondaryhomoallylicalcohols .1Althoughnumerousworkonthereactionusingastoichio metricamountofchiralLewisacidshasbeenreporte… 相似文献
7.
IntroductionGTF ,theindispensablecofactorofinsulin ,isacomplexformedbetweenaminoacid ,niacinandchromi um .Insulindoesnotkeepthenormalsugarmetabolicun lessGTFhasaffinityforitscomplex .1Thus ,itisdesir abletohaveagoodunderstandingofcoordinationbehaviorofchromi… 相似文献
8.
IntroductionDiorganotinderivativesof 2 ,6 pyridinedicarboxylicacidexhibithighinvitroantitumouractivities .1 5Thesecompoundshavebeensynthesizedbythereactionofdiorganotindichloridesordiorganotinoxideswith 2 ,6 pyridinedicarboxylicacid ,butthereactionbetweentri … 相似文献
9.
Overthepasttenyears ,thepursuitofsynthetictar getswithincreasingcomplexityhasresultedinthedevel opmentofreactionsthatemphasizechemo ,regio ,di astereo andenantioselectivity .1 4 Theadditionsoforganichalidetocarbonylcompounds ,promotedbyvariousmet alsandacidc… 相似文献
10.
IntroductionGallicacidexistsintheleavesandfruitsofmanytypesofplantsandiswidelyusedinmedicineforanti oxi dationandantibacterialactivity ,antiflammatoryactionandanti canceractivity .1 5Inspiteofthehealthimportanceofgallicacid ,itsmetabolismandkineticsinthehu… 相似文献
11.
IntroductionChiralmethylmoietyisgeneralyinnaturalproductsandmedicines[1],whileopticalyactiveacidsandalcoholsareusualyusedasin... 相似文献
12.
LI Shu-lan LIU De-xm ZHOU Jian-hua ZHANG Sheng-qiang LIU Liang YANG Zhao-he 《高等学校化学研究》1996,12(2):194-200
Non-isothermalKineticsofThermalDecompositionReactionsofSchiffBaseComplexesofAminoAcidswithTranistionMetals(I)LIShu-lan,LIUDe-... 相似文献
13.
IntroductionOneofthemostattractivefeaturesofcalix[4]arenesistheircuplikestructure ,whichwasobservedbothinsol idstateandinsolution .Thecavitydefinedbytheconeconformerofthismacrocyclewasextensivelyemployedasabindingsitefortherecognitionofneutralguestshavin… 相似文献
14.
IntroductionApplicationoftherareearthcompoundshavebeenfoundinmedicineandagriculture.Sotheremayberareearthcompoundsinpeptideandproteincomplexes.Itisimportanttounderstandmoreclearlythebondingofthelanthanideionsinthecoordinationcompoundswithaminoacids.S… 相似文献
15.
IntroductionCopper(Ⅱ)complexeswithorganicacidsandotherdonorligandsexistextensivelywithinhumanbodies,andplayanimportantroleinavastrangeofchemicalandbiochemicalcatalyticsystems[1].Muchattentionhasbeenpaidtowhattheymayrevealtothestructuresandtheprobable… 相似文献
16.
LI Li jun ** 《高等学校化学研究》2001,17(1):41-47
IntroductionOxalateinnormalurineismainlyformedbythemetaboliteofextrinsicfoodandintrinsicglucoseandprotein .Thehighoxalicacidconcentrationinurineisthemostdangerousfactorresultinginkidneystoneandurinetractstone[1] .Theyareformedprimarilybecauseoftheer roro… 相似文献
17.
IntroductionSalicylicacid (H2 sal)isaninterestingversatilelig andanditscomplexesareofcontinuousinterestfrombothstructuralandbiologicalviewpoints .1 2 H2 salhastwofunctionalgroups ,thecarboxylateandphenoxide ,whichhavebeenwidelyempolyedinthesynthesisofmononucl… 相似文献
18.
Synthesis and Structure of Inclusion Complex of Cyclomaltoheptaose(β—Cyclodextrin)with m—Aminophenol
IntroductionSupramoleculeisakindofsystemwithspecialstruc turedependingontheweakmolecularinteractions (suchasvanderWaals ,hydrogenbond ,electrostaticandhy drophobicinteractions) .Theweakinteractionsarerelatedtobiologicalprocesses ,forexample ,thecatalyticrea… 相似文献
19.
IntroductionAggregationisacommonphenomenonformanysim pleorganicmoleculesaswellascomplexmoleculeswithimportantbiologicalactivity .Formationofaggregatesmaybedrivenbydifferentnon covalentinteractions ,suchashydrogenbonding ,1electrostaticinteraction ,2 orhy dr… 相似文献
20.
《高等学校化学研究》2002,(2)
Keggin type polyoxometalates (POMs)whoserepresentativeisH3PW12 O4 0 (PW12 )exhibitsauniquecombinationof physicalandchemical properties .Theyhavebeenwidelyusedasacidcatalystsinhomo geneousandheterogeneousreactionsystems .Howev er ,thecatalyticactivityofPW12 issolimi… 相似文献