(KOH or NaOH, 85%NH2NH2, HOCH2CH2OH, reflux, 190-200 oC, 70-95%) Cram(1962) (KOBu-t, DMSO, rt, 60-90%) Kishner(1911)(anhydride KOH, sealed tube, 160-180 oC) Wolff-Kishner-Huang Reduction -N2 RR N N H -H2O OH RR N N H H2O OH + Wittig-Horner Reaction 用氧化膦稳定的碳...
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添加剂极性添加剂的种类很多,有醞类,女MG、2G和THF等;有胺类,如Et3N和TMEDA;有烷基金属化合物,如叔丁氧基钾(KOBu), 叔戊氧基钾(KOAm)等;还有复合添加剂。添加剂在醸类添加剂中,不对称醯,如BEE(乙二醇乙基叔丁基瞇),BME(乙二 醇甲基叔丁基讎)等,它与对称醞相比具有单体转化率很高和偶 联效率高的优点...
化隆者闵博,治浅者bidnxidkobumidnyandiyltaichuzhiyuangdizhinsshubylfiisi-fen$)tdishon褊狭,可不勉与!”乃以太初之元改正朔,易服色,封太山,dingzongmidobdigudnzhiylyiweidionchdngchuizhiyiih心uyiln定宗庙百官之仪,以为典常,垂之于后云。Hy6urenqir6nshengyduyuyu6rbudez6bunengwiifenfenerwudu礼由人...
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纱翅个挖救柃尺 链Eury柔aal女ata梳Kobu宽ski管细达首枝绕帝柃艺 凝E.l榴oqua困iana呆Dun鸽n危金叶细枝糕柃费 武E.lo势quai历ana炒Dunn泥var斥.au易reo-乎punc跃tata哪Cha辈ng修隔惕哑药共浊柃隶 金E.m姻uric筒ata降Dunn纳窄基红褐坏柃零 喇E.r烧ubig柏inos吴aOh狼ang孤var.蚀att盒enua凳...
19、 oc, 70-95%)cram(1962) (kobu-t, dmso, rt, 60-90%)kishner(1911)(anhydride koh, sealed tube, 160-180 oc)wolff-kishner-huang reduction-n2rrnnh-h2oohrrnnhh2ooh+wittig reactionrroph3pchrrrr+rroph3pchrpph3chrrroph3po+wittig reactionpph3chrrrowittig-horner reaction 用氧化膦稳定的碳负...
18、ctionWolff-Kishner-Huang ReductionRRONH2NH2OHRRNH2NH2RRNNH2Wolff(1912) (7% NaOR-ROH, sealed tube, 150-170 oC)Huang-Min-Lon(1946) (KOH or NaOH, 85%NH2NH2, HOCH2CH2OH, reflux, 190-200 oC, 70-95%)Cram(1962) (KOBu-t, DMSO, rt, 60-90%)Kishner(1911)(anhydride KOH, sealed tube...