由1,4-二碘代苯出发,经过两步Sonogashira偶联反应合成标题化合物2-甲基-4-(4-(吡啶-4-乙炔基)苯基)-3-丁炔-2-醇。通过1 H NMR、13 C NMR核磁共振、X射线单晶衍射等手段对化合物的结构进行了表征。结果表明,该化合物属于单斜晶系,空间...由1,4-二碘代苯出发,经过两步Sonogashira偶联反应合成标题化合物2-甲基-4-(4-(吡啶-4-乙炔基)苯基)-3-丁炔-2-醇。通过1 H NMR、13 C NMR核磁共振、X射线单晶衍射等手段对化合物的结构进行了表征。结果表明,该化合物属于单斜晶系,空间群为P2(1)2(1)2(1)。晶体学参数:a=0.060754(15)nm,b=0.081700(19)nm,c=0.32073(7)nm,α=90.00°,β=90.00°,γ=90.00°,V=15.920(7)nm3,Z=8。展开更多
A new method for synthesizing 3-methyl-2-penten-4-yn-1-hyde has been devoloped.Starting start with acetone,methyl formate,bromoethane etc,target molecule was given after adol reaction,addion reaction,grignard reaction...A new method for synthesizing 3-methyl-2-penten-4-yn-1-hyde has been devoloped.Starting start with acetone,methyl formate,bromoethane etc,target molecule was given after adol reaction,addion reaction,grignard reaction and hydrolyze reaction.Effects of dosage of EtMgBr and method of synthesis were studied.The process provides an eco-friendly,high yielding synthetic methodology.The yield of producing 3-methyl-2-penten-4-yn-1-hyde was up to 45%.All products were determined by 1H NMR.展开更多
文摘由1,4-二碘代苯出发,经过两步Sonogashira偶联反应合成标题化合物2-甲基-4-(4-(吡啶-4-乙炔基)苯基)-3-丁炔-2-醇。通过1 H NMR、13 C NMR核磁共振、X射线单晶衍射等手段对化合物的结构进行了表征。结果表明,该化合物属于单斜晶系,空间群为P2(1)2(1)2(1)。晶体学参数:a=0.060754(15)nm,b=0.081700(19)nm,c=0.32073(7)nm,α=90.00°,β=90.00°,γ=90.00°,V=15.920(7)nm3,Z=8。
文摘A new method for synthesizing 3-methyl-2-penten-4-yn-1-hyde has been devoloped.Starting start with acetone,methyl formate,bromoethane etc,target molecule was given after adol reaction,addion reaction,grignard reaction and hydrolyze reaction.Effects of dosage of EtMgBr and method of synthesis were studied.The process provides an eco-friendly,high yielding synthetic methodology.The yield of producing 3-methyl-2-penten-4-yn-1-hyde was up to 45%.All products were determined by 1H NMR.
文摘以纤维素衍生物为手性固定相,建立药物中间体1-苯乙烯基-3-己基丙炔醇对映体的HPLC手性分析方法。以正己烷与乙醇或异丙醇为流动相,在Chiralcel OD-H手性固定相上对1-苯乙烯基-3-己基丙炔醇进行了拆分,并考察了流动相组成、流速和柱温对该对映体分离的影响,获得较优分析条件,分析时间在15 min内,分离度大于1.5。结果表明,1-苯乙烯基-3-己基丙炔醇对映体在正己烷-异丙醇(体积比90:10)为流动相、流速为1.0 m L/min、柱温为25℃时,分离效果最佳。本方法可用于1-苯乙烯基-3-己基丙炔醇对映体的质量控制。