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359.5g异丁酸在室温下（15℃）滴加595g亚硫酰氯，滴毕后升温至75℃，至无氯化氢放出止，收集88～92℃馏分，得293.0g产品。残留物中加入前馏分和新亚硫酰氯100g，常压蒸馏得83～86℃馏分232.3g，88～92℃产品106.1g，共得产品399.1g，含量98.75%，收率91.7%。\u003C\u002Fp>\u003Cp>1-（4-乙氧基苯基）-2-甲基-1-丙酮的制备将37g苯乙醚与50mL二硫化碳混合，冷却下分批加入无水三氯化铝48g，继续冷却至2～3℃，滴加异丁酰氯32.1g，滴毕再搅拌反应1h。反应液倒入200mL冰水，搅拌下加100mL浓盐酸，分出油层。水层用苯50mL提取3次，苯提取液与油层合并，干燥、脱苯、真空蒸馏得产品2.5g，收率74.4%。\u003C\u002Fp>\u003Cp>1-(4-乙氧基苯基）-2-溴-2-甲基-1-丙酮的制备将上步产物42g与95mL无水乙醚于20℃、1.5h内滴加8g溴，滴毕继续反应30min，慢慢加入100mL水，搅拌静置分层。醚层经水洗、30%亚硫酸氢钠溶液洗涤，再水洗，干燥，脱醚得白色结晶43g，m.p.36～38℃。\u003C\u002Fp>\u003Cp>2-（4-乙氧基苯基）-2-甲基丙酸的制备 将上步产物239g、甲醇120mL、原甲酸三乙酯478mL、甲磺酸16mL于60℃保温反应12h，搅拌下加15%氢氧化钠800mL至pH值12，加热回流3h。倾入大烧杯中，加2500mL水、250mLCCl4，静置分层，水层中加浓盐酸250mL，过滤，真空干燥得124g产品，m.p.81～83℃，收率67.7%。\u003C\u002Fp>\u003Cp>2-(4-乙氧基苯基）-2-甲基丙醇的制备 将上步产物83.5g和500mL乙醚在无水条件下慢慢滴入到450mL乙醚和17g氢化铝锂混合液中，滴毕，于室温下搅拌2h，再滴入乙酸乙酯。滴毕继续反应15min，滴加4mol\u002FL硫酸250mL，分层，醚层用10%氢氧化钠洗涤后再水洗、干燥、放置、脱醚，得产品75g。\u003C\u002Fp>\u003Cp>醚菊酯的合成将上步产物172g、间苯氧基苄氯207.5g，在氢氧化钠存在下，以四正丁基溴化铵（28.7g)为相转移催化剂，于80℃反应4h，降温后加入390mL水，搅拌20min，甲苯萃取，水洗萃取液，干燥、脱溶、减压蒸馏，收集226～255℃\u002F399.9～633Pa馏分211.5g，含量95.4%，收率63.4%。\u003C\u002Fp>\u003Cp>制备方法二\u003C\u002Fp>\u003Cp>对乙氧基苯乙腈在氢氧化钾、水、溴化三甲基苄铵存在下与碘甲烷反应，生成物经水解，然后用氢化铝锂还原，最后在氢化钠和乙腈存在下，与间苯氧基氯苄反应，合成醚菊酯。\u003C\u002Fp>\u003Cp>制备方法三\u003C\u002Fp>\u003Cp>叔丁基乙酰苯酯的制备对叔丁基酚（0.67mol)与醋酐（0.8mol)作用，于140℃回流反应4h，脱去副产乙酸和未反应的醋酐，得棕黄色液体，收率95%，含量91.2%。\u003C\u002Fp>\u003Cp>[4-(2-氯-1，1-二甲基乙基）苯基]乙酸酯的制备将上步产物100g(含量91.2%)与四氯化碳200mL混合物，加热至60℃。加2g偶氮二异丁腈，同时通氯，加流，于1h内通入氯气15g。分析，脱溶得棕红色液体107g，再减压蒸馏，得产品45g，收率89%，含量93.2%。\u003C\u002Fp>\u003Cp>1-氯-2-（4-乙氧基苯基）-2-甲基丙烷的制备将上步产物100g（含量94%、0.415mol)、硫酸二乙酯160g (1.04mol)、片状氢氧化钾85g（含量82%、1.245mol)混合，搅拌，加热至30℃滴加20%苄基三乙基氯化铵24g（0.0208mol)，约10min加完，滴毕升温至40℃，剧烈搅拌反应6h。冷却，加水100mL，搅拌使固体溶解，分层，有机层用水洗涤，减压脱尽低沸物，得黄色液体产物88.5g，含量89.6%，收率89.9%。\u003C\u002Fp>\u003Cp>醚菊酯的合成将上步产物50g (含量90%、0.21mol)、间苯氧基苯甲醇51.4g(含量98%、0.252mol)、片状氢氧化钾21.5g(含量82%、0.315mol)、二甲基亚砜250mL混合后，在氮气保护下加热至120℃保温10h，减压脱溶，于残液中加入100mL水、100mL苯，搅拌分层，苯层水洗，减压脱苯，得棕黑色黏稠液体94g，高真空蒸馏得醚菊酯49.4g，含量85.6%，收率53.5%。\u003C\u002Fp>","2026-08-21T07:51:12.859463Z",false,[330,336,342,348,354,360,366,372,378,384,390,396],{"slug":331,"cid":332,"name":333,"nameZh":334,"cas":335},"785893769781186560","J-36209-4","Sodium methylparaben","尼泊金甲酯钠","5026-62-0",{"slug":337,"cid":338,"name":339,"nameZh":340,"cas":341},"785872476956528640","J-1339868-0","beta-Butyrolactone","β-丁内酯","3068-88-0",{"slug":343,"cid":344,"name":345,"nameZh":346,"cas":347},"785880917334822912","J-1094636-8","Polysorbate 80","聚山梨酯80","9005-65-6",{"slug":349,"cid":350,"name":351,"nameZh":352,"cas":353},"785900310060077056","J-905868-8","Methyl 6-O-dodecanoylhexopyranoside","6-O-十二酰基吡喃己糖苷甲酯","138879-90-0",{"slug":355,"cid":356,"name":357,"nameZh":358,"cas":359},"785898657378471936","J-1365030-1","Glycerol ester of rosin","松香甘油酯","8050-31-5",{"slug":361,"cid":362,"name":363,"nameZh":364,"cas":365},"785896081350201344","J-1380643-4","Eupatundin","圆叶泽兰苦内酯","20071-53-8",{"slug":367,"cid":368,"name":369,"nameZh":370,"cas":371},"785898602777022464","J-1368373-3","Eupalinilide C","林泽兰内酯C","757202-11-2",{"slug":373,"cid":374,"name":375,"nameZh":376,"cas":377},"785920342148255744","J-372562-0","Bezafibrate Methyl Ester","苯扎贝特甲酯","2157488-46-3",{"slug":379,"cid":380,"name":381,"nameZh":382,"cas":383},"785888765909405696","J-25779-4","Acifluorfen-methyl","三氟羧草醚甲酯","50594-67-7",{"slug":385,"cid":386,"name":387,"nameZh":388,"cas":389},"785876754186113024","J-1974113-0","Cyphenothrin","右旋苯醚氰菊酯","39515-40-7",{"slug":391,"cid":392,"name":393,"nameZh":394,"cas":395},"785895422873833472","J-900574-7","Glycerides, lard mono-","猪脂甘油酯","61789-10-4",{"slug":397,"cid":398,"name":399,"nameZh":400,"cas":401},"785873649683927040","J-1421383-3","7α-Thiospironolactone","7α-硫代螺内酯","38753-76-3",1794248994761,"zh-CN",[]]