Enote操作中可用英文例句

Enote操作中可用英文例句反应部分sealedtube封管pressuretankreactor高压釜freshlyprepared新制的Thesuspension悬浮液addedinseveralportions分批加saturatedaqueousNaHCO3饱和NaHCO3水溶液GrignardReagents格氏试剂initiatedby引发Intoa200ml4-neckedroundbottomflaskpurgedandmaintainedwithaninertatmosphereofnitrogen,在充满氮气的200毫升四颈圆底烧瓶中A200mlflaskwaschargedwithasolutionofSMinTHFundernitrogenatmosphere,在充满氮气的200毫升烧瓶中加入SM的THF溶液XXwasaddedviamicrosyringeto….用微量注射器把XX加入到…Theflaskwasevacuatedandflushedthreetimeswithnitrogen,followedbyflushingwithhydrogen.Themixturewasstirred2hatroomtemperatureunderanatmosphereofhydrogen(balloon).反应瓶用氮气置换三次，紧接着通氢气。在氢气环境下（氢气球），室温下混合搅拌2个小时。ThiswasfollowedbytheadditionofasolutionofSM(50g)inH2O(50ml),whichwasaddeddropwisewithstirringat0degreesCin15mins.将50gSM溶于50mL水制成的溶液在0℃条件下滴加到上述混合液中，滴加时间为15分钟。ThissolutionwasslowlytransferredtoasolutionofXXXinanhydrousTHF(20mL).该溶液被慢慢转移到XXX的THF(20mL)溶液中TotheaboveH2(g)wasintroducedin.在以上混合液中通入H2气Theabovemixturewasstirredfor1hourat-20degreesC.以上混合物在-20度搅拌1小时Thefinalreactionmixturewasirradiatedwithmicrowaveradiationfor10minsat90degreesC.最终的混合物用微波辐射10分钟在90℃Thereactionmixturewasthenheatedtorefluxfor30min反应液加热回流30分钟Thetemperaturewasincreasedtoroomtemperaturenaturally.自然升温到室温Thereactionmixturewassonicatedatroomtemperaturefor3h.反应混合物在室温下超声3h。Themixturewasheatedfor1.5hrunderrefluxandwaterseparation.混合物在水分离的条件下回流1.5h。ThewaterformedinthereactionwasremovedviaaDean-Starktube反应中形成的水份通过Dean-Stark管除去。Thetemperatureoftheexternalbathwascarefullymaintainedbetween-20and-25degreesCduringtheaddition.外面冰水浴的温度要保持在-20℃~-25℃之间。Ozonewasbubbledslowlyintothesolutionuntilthereactionmixtureturnedcolorless;Nitrogenwasthenpassedthroughthesolutiontoremoveanyexcessozone.臭氧被慢慢地鼓泡进入反应液直到反应液变成无色，然后通入氮气来去除多余的臭氧Aftercooledtoroomtemperature,thereactionmixturewas…冷却到室温后，反应混合物被…Thereactionwascooledto-20degreesC.该反应冷却到-20℃Theresultingsolutionwaskeptundisturbedovernight生成的溶液被静置过夜后处理部分Thereactionmixturewaspouredinto200gofcrushedice.Theisolatedsolidwascollectedandpurifiedbyrecrystalizationwithethanol.该反应混合物加入到200g碎冰中碎灭。析出的固体被收集，并用乙醇重结晶纯化。Thereactionwasthenquenchedbytheadditionof300mLofwater.该反应加入300mL的水进行淬灭。Thereactionmixturewascooledtoroomtemperature该反应混合物被冷却至室温。Theresultingsolutionwasdilutedwith50mlofwater,thenextractedwith….最终的反应液加入50ml的水进行稀释，然后萃取用….Theresiduewasdilutedwithwater,thenadjustedtopH6~7withsodiumbicarbonate.Thesolidwascollectedbyfiltration.反应液加水稀释，用碳酸氢钠调pH值到6~7，过滤收集生成的固体。Thesolidwasfilteredout.Thefiltratewasconcentratedundervacuum.固体被过滤掉。滤液在真空状态下浓缩。ThepHvalueofthesolutionwasadjustedto6~7withNaHCO3.用碳酸氢钠将溶液的pH值调到6~7。TheproductwasprecipitatedbytheadditionofNH3H2O.该产品加入氨水，使其沉淀。ThemixturewasfilteredthroughaCelitepad该混合物被过滤通过矽藻土垫。Theresultingmixturewaswashedwith2x500mLofsaturatedbrine……得到的混合物用2x500mL的饱和食盐水洗涤。Theresultingsolutionwasextractedwith3x40mLofethylacetate.Theorganiclayerswerecombined,washedwithsodiumcarbonate(aq.)andbrine,driedandconcentratedundervacuum.Theresiduewasappliedonasilicagelcolumnandelutedwithethylacetate/hexane/petroleumether(1/20)togive1.5gproductasacolorlesssolid.反应溶液用3x40mL乙酸乙酯提取。将有机层合并，用碳酸钠（aq.）和盐水洗涤，干燥，在真空状态下浓缩。得到的粗品，过硅胶柱，用乙酸乙酯/正己烷（1/20）洗脱，得到1.5g无色固体产品。ThereactionmixturewaspartitionedbetweenCH2Cl2andwater.TheaqueouslayerwasextractedagainwithCH2Cl2.Thecombinedorganiclayerwasdriedoveranhydroussodiumsulfateandconcentratedundervacuum.反应混合物在二氯甲烷和水中分层。水层用二氯甲烷萃取。将合并的有机相用无水硫酸钠干燥，在真空状态下浓缩。Themixturewaspouredinto20mLofwaterand20mLofethylacetate.该混合物加入到20mL的水和20mL乙酸乙酯。Theorganicphasewasseparated,有机相被分离Themixturewasdriedoveranhydrousmagnesiumsulfate该混合物用无水硫酸镁干燥Thesolidwasdriedinanovenunderreducedpressure固体在真空干燥箱里干燥Thecombinedaqueouslayerwasdriedbylyophilization.合并的水相冻干干燥。Thesolidwasdriedinanovenunderreducedpressure.固体在真空干燥箱被干燥Thesolidwasdriedundervacuum.固体在真空状态下被干燥Thesolidwasdriedunderinfraredlight.固体在红外光下干燥Thesolidwasair-dried.固体被风干Thesolventwasevaporatedinvacuotogiveyellowsyrup.在真空中蒸发溶剂得到黄色的油状物。Thesolventwasremovedunderreducedpressure溶剂在减压的条件下被分离Thesolventwasremovedbydistillationundervacuum.减压蒸出溶剂Theresultingsolutionwasdecolorizedbytheadditionofactivecarbon.最终的溶液加入活性炭脱色。Theresiduewaspurifiedbythinlayerchromatographydevelopedwithethylacetate/hexane(1/20).残留物用乙酸乙酯/正己烷（1/20）的薄层色谱法进行纯化。Thedriedsolidwastrituratedwithhotacetone(3x20mL)andfilteredtoremoveinorganicsalts.干燥的固体放在研钵里加热丙酮（20mL）研磨，重复三次，过滤除去无机盐。chromatographyboard层析板TheresiduewaspurifiedbypreparativeTLC(EtOAc:n-hexane=1:1).残余物经制备薄层色谱法（乙酸乙酯：正己烷=1:1）进行纯化。Theresiduewasappliedontoasilicagelcolumnwithethylacetate/petroleumether(1:30).残留物被纯化用乙酸乙酯/石油醚（1:30）的硅胶柱。ThemixturewasneutralizedwithDowex50WX8-200ion-exchangeresin.混合物通过Dowex50WX8-200离子交换树脂被中和。Thecrudeproductwasre-crystallizedfromEtOAc/PEintheratioof1:2.粗产品用乙酸乙酯和石油醚比例为1:2经行重结晶。Thecrudeproductwasre-crystallizedfromethylacetate/petroleumetherintheratioof1:2.粗品用乙酸乙酯：石油醚比例为1:2进行重结晶。Theproductwascollectedfromreactionmixturebysteamdistillation.该产品采用水蒸气蒸馏法从反应混合物中收集。Thecrudeproductwaspurifiedbydistillationunderreducedpressure(76mmHg)andthefractionwascollectedat68-70degreesC.粗产品被纯化通过减压蒸馏（76毫米汞柱），并收集68-70℃的馏分。性状：syrup，foam,crystalline,