共查询到19条相似文献,搜索用时 163 毫秒
1.
(R)-2-{[4-(3-甲氧基丙氧基)-3-甲基吡啶-2-基]甲基亚硫酰基}- 1H-苯并咪唑的合成 总被引:1,自引:0,他引:1
以2,3-二甲基吡啶为起始原料, 经过11步反应, 不对称合成了质子泵抑制剂的关键中间体: (R)-2-{[4-(3-甲氧基丙氧基)-3-甲基吡啶-2-基]甲基亚硫酰基}-1H-苯并咪唑. 研究了用手性高效液相色谱拆分对映体、测定产品光学纯度的方法, 结果表明目标产品的ee值达到99%. 通过IR, UV, MS以及1H NMR分析对重要中间体和目标产品进行了结构鉴定. 相似文献
2.
3.
4.
研究了以2-羟基-4-甲氧基苯甲醛和2-氨基-6-甲基吡啶为原料合成新型席夫碱化合物5-甲氧基-2-[(E)-(6-甲基吡啶-2-亚氨基)甲基]苯酚的方法。当2-羟基-4-甲氧基苯甲醛与2-氨基-6-甲基吡啶摩尔比为1∶1.6,反应时间为6 h,反应温度为75℃时,反应产率最高。采用元素分析、UV-Vis、IR、1H NMR、X-射线单晶衍射等方法进行结构表征。该化合物为单斜晶系,空间群P21/c,a=1.1886(3)nm,b=0.65948(16)nm,c=1.6897(4)nm,β=108.505(3)°,V=1.2560(5)nm3,Dc=1.281 g·cm-3,Z=4,F(000)=512,μ=0.087 mm-1,R1=0.0477,wR2=0.1342。通过π···π堆积和分子内氢键O2-H2···N1、C8-H8A···N2形成较稳定的晶体结构,并具有蓝色荧光。 相似文献
5.
6.
以对硝基苯甲酸为起始原料,经氯代、氨解、还原合成了N-[(吡啶-3-基)亚甲基]-4-氨基苯甲酰胺。通过熔点、元素分析、IR、1H NMR对其进行表征。利用Fe粉/醋酸和铁(Ⅱ)酞菁/NaBH4两种还原法,将中间产物分子中的硝基选择性还原为氨基,同时分子内的酰胺键不受影响,并获到了较高的收率。X-射线单晶衍射测定了其晶体结构,结果表明它属于单斜晶系,P21空间群,晶胞参数为:a=0.6324(8)nm,b=0.8739(11)nm,c=1.0281(12)nm,β=91.79(2)°,Z=2,V=0.5679(12)nm3,Dc=1.329g.cm-3,F(000)=240,μ=0.088mm-1,R1=0.0761,WR2=0.2120,S=1.044。 相似文献
7.
8.
9.
10.
11.
12.
The title compound,(E)-ethyl 2-(5-(3-methyl-2-butenyloxy)-2-(3-(4-(3-methyl-2-butenyloxy)phenyl) acryloyl) phenoxy)acetate(1),has been synthesized and characterized by FT-IR and 1H-NMR spectroscopy,ESI-MS,and X-ray single-crystal diffraction.FT-IR,1H-NMR and ESI-MS confirm the functional groups,particularly the ethyl groups in the ester moiety,of the compound.The single-crystal X-ray diffraction has revealed a monoclinic structure,space group P21/n with a = 14.6832(14),b = 7.7581(7),c = 23.075(2),β = 101.670(2)o,V = 2574.2(4) ?3,Z = 4,Dc = 1.235 g/cm,μ = 0.085 mm-1,and F(000) = 1024.The skeleton of chalcone in the molecular structure is coplanar. 相似文献
13.
14.
以香草醛为原料,经Williamsom反应和Knoevenagel-Doebner反应制得新化合物3-(3-甲氧基-4-羧甲氧基苯基)丙烯酸(2);2与乙醇经酯化反应合成了阿魏酸衍生物——3-[3-甲氧基-4-(2-乙氧基-2-氧代乙氧基)苯基]丙烯酸乙酯(3),其结构经1H NMR,IR,元素分析和X-射线单晶衍射确证。3属三斜晶系,空间群P-1,晶胞参数a=8.301,b=8.474,c=11.445,α=82.94°,β=86.86°,γ=84.52°,V=794.63,Z=2,Dc=1.289 g·cm-3,R1=0.046 7,wR2=0.101 8。3通过分子间氢键(C-H┈O)形成了二维网状结构。 相似文献
15.
LI Fanga PAN Fu-Youa② YANG Jian-Guob GE Chang-Huaa a 《结构化学》2006,25(5):626-630
1 INTRODUCTION Recently, compounds containing pyrazole, imida- zole, triazole (including benzotriazole), pyridine, tetrazole and indole have attracted much interest because of their fungicidal activity, plant-growth regulating activity and antibacterial activity[1~3]. Schiff bases also constitute a good type of biolo- gically active substructures[4~7]. Studies of pyri- dine Schiff base-type fungicides have been repor- ted[8]. However, some structures of pyridine com- pounds containing h… 相似文献
16.
17.
18.
A. A. Avetisyan I. L. Aleksanyan L. P. Ambartsumyan 《Russian Journal of Organic Chemistry》2008,44(5):723-727
By a reaction of 2-methyl-4-chloroquinolines with o-mercaptoaniline under various conditions synteses were performed of substituted in the benzene ring 4-[(2-aminophenyl)thio]-2-methylquinolines and (4E)-4-[(2-mercaptophenyl)imino]-2-methyl-1,4-dihydroquinolines that were respectively by isomerization or rearrangement converted into 4-[(2-mercaptophenyl)amino]-2-methylquinolines. 相似文献
19.
Wei Li Yun-Li Liu Jian Liu Huai-teng Zhang Shu-Zhong Zhan De-Rong Cao 《Transition Metal Chemistry》2011,36(3):255-260
The triazenide, 1-[(2-carboxyethyl)benzene]-3-[2-pyridine]triazene (HL), has been synthesized. In the presence of Et3N, the reaction of HL with Cu(OAc)2·H2O or CuCl2·2H2O gives the tetranuclear copper(II) complexes {Cu4(L)2(μ2-OH)2(OAc)4} 1 and {Cu4L4(μ4-O)Cl2} 2, respectively. The X-ray crystal structures of both complexes have been obtained. Magnetic studies indicate significant antiferromagnetic
coupling between the copper(II) centers for both complexes, with coupling constants (J) of −493.4 cm−1 for 1 and −165 cm−1 for 2. 相似文献