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微波辐射下2-[4-二-(4-氟苯)甲基]哌嗪乙酰腙化合物的合成 总被引:3,自引:0,他引:3
微波辐射条件下, 以丙酮作溶剂, 1-[二-(4-氟苯)甲基]哌嗪与氯乙酸乙酯反应得到2-[二-(4-氟苯)甲基]哌嗪乙酸乙酯(1), 1与水合肼在微波辐射条件下反应得到2-[二-(4-氟苯)甲基]哌嗪乙酰肼(2), 进一步在微波辐射条件下由2-[二- (4-氟苯)甲基]哌嗪乙酰肼(2)与取代芳香醛反应制得目标化合物3a~3f. 合成的6个目标化合物通过熔点测定和质谱、红外光谱、核磁共振氢谱分析、元素分析对其结构进行确证. 相似文献
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1-[二-(4-氟苯)甲基]-4-取代哌嗪是一类重要的药物中间体,随着哌嗪环4-位引入不同的取代基可以产生不同的生物活性,如治疗偏头痛药物氟桂利嗪、洛美利嗪,抗氧化剂[1,2]、钙拮抗剂[3]、癌症治疗中多种抗药性的调节剂(modulator of MDR)[4,5]等;此外,含有酰基结构单元的哌嗪衍生物具有降压活性,如哌唑嗪等[6,7].因此根据药学上的拼合原理,我们以哌嗪为母体,采用哌嗪环先引入二-(4-氟苯)甲基后引入酰基的策略,设计合成了九个未见文献报道的1-[二-(4-氟苯)甲基]-4-酰基取代哌嗪类衍生物(4a~4i),如下图所示,其结构用红外、质谱、核磁、元素分析进行了分析表征,并总结了其波谱特征.此类化合物对治疗偏头痛和高血压的活性研究正在进行之中. 相似文献
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在碘化亚铜、四丁基溴化铵和磷酸钾存在下,9,9-二(4-羟基苯基)呫吨(1)和4-甲基碘苯(2)于N,N-二甲基甲酰胺溶剂中发生Ullmann偶联反应,加热回流反应24 h,以95%的产率合成了中间体--9,9-二[4-(4-甲基苯氧基)苯基]呫吨(3),继而加入催化量的N-溴代丁二酰亚胺并在光照条件下,将中间体3氧化得到一种新型芳香族二羧酸--9,9-二[4-(4-羧基苯氧基)苯基]呫吨(4),其产率为84%,二步反应总收率为79.8%。 目标化合物4经1H NMR、13C NMR、IR和元素分析测试技术确定了其结构。 该法具有原料易得,操作简单,反应条件温和,收率高等优点。 相似文献
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报道俘精酸酐类化合物(E/Z)4-二环丙亚甲基-3-[1-(2,5-二甲基-3-呋喃基)亚乙基]四氢呋喃-2,5-酮的拆分,及(E)和(Z)-5-二氰亚甲基-4-二环丙亚甲基-3-[1-(2,5-二甲基-3-呋喃基)亚乙基]四氢呋喃-2-酮4(E)和4(Z)的合成,并对它们的光致变色特性进行了初步研究。 相似文献
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隣氨基苯甲酸与N-(β-二乙氨基-乙基)-甲酰胺或N-(δ-二乙氨基-α-甲基-正丁基)甲酰胺缩合,分别形成3-(β-二乙氨基-乙基)3,4-二氢化杂二氮[1,3]萘-酮-[4]与3-(δ-二乙氨基-α-甲基-正丁基)3,4-二氢化杂二氮[1,3]萘-酮-[4]。 5-氯代-隣位氨基苯甲酸舆N-(β-二乙氨基-乙基)-甲酰胺或N-(δ-二乙氨基-α-甲基-正丁基)-甲酰胺缩合,分别形成6-氯代-3-β-二乙氨基-乙基-3,4-二氢化杂二氮[1,3]-萘酮-[4]及6-氯代-3-(δ-二乙氨基-α-甲基-正丁基)-3,4-二氢化杂二氮[1,3]萘酮-[4]。 相似文献
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以对苯二甲醛、丙二腈为原料, 合成对苯二甲醛单缩醛, 再与季戊四醇反应得到了2,4,8,10-四氧杂-2,9-二(4-二氰基乙烯基苯基)螺[5.5]十一烷, 经水解, 与丙二腈反应, 制备了中间体2,4,8,10-四氧杂-2-(4-二氰基乙烯基苯基)-9-(4-甲酰基苯基)螺[5.5]十一烷(3). 用乙酸酐保护的对苯二甲醛单缩醛与间苯二酚反应, 制备了杯芳烯中间体(6). 将化合物6与过量的化合物3反应, 得到中间体7, 经水解后与过量的化合物6反应, 得到了4,6,10,12,16,18,22,24-八羟基-2,8,14,20-四-{(联三-(3-苯基-2,4,8,10-四氧杂螺[5.5]十一烷基))-(4-(2-(4,6,10,12,16,18,22,24-八羟基)杯芳基)苯基)}杯芳烃螺环树形大分子化合物(9). 总收率为12.7%. 产物结构用IR, 1H NMR, 13C NMR, MS 和元素分析进行了表征, 对影响反应的因素进行了讨论. 相似文献
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K Ogawa Y Matsushita I Yamawaki M Kaneda J Shibata T Toko T Asao 《Chemical & pharmaceutical bulletin》1991,39(4):911-916
The metabolites of (E) [corrected]-4-[1-[4-[2-dimethylamino)ethoxy]phenyl]- 2-(4-isopropylphenyl)-1-butenyl]phenyl monophosphate, TAT-59, (1), a potent antitumor agent for hormone-dependent tumors, and derivatives of TAT-59 were synthesized to confirm its proposed structure. The structure and the Z-configuration of the metabolites (2a-8a) were confirmed by comparison with synthesized authentic compounds. All of the metabolites and the derivatives of TAT-59 were tested for a binding affinity toward estrogenic receptors in vitro and antiuterotrophic activity in vivo. Most of the metabolites possessed remarkable binding affinity toward estrogenic receptors as well as fairly good antiuterotrophic activity. 相似文献
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1,2,3-Triazole derivatives have been reported as inhibiting tumor proliferation, invasion, and metastasis[1]. The fused l,3,4-triazolo[3,4-b]-1,3,4-thiadiazoles derivatives show various biological effects such as antifungal[2], antibacterial, hypotensive and CNS depressant activities[3]. We have reported several 6-aryl-3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazolo[3,4-b]-1,3,4-thiadiazoles in the previous paper[4]. The novel 6-aryl-3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazolo[2,4-b]-1,3,4-thiadiazoles 6a-j have been synthesized by the condensation of 4-amino-5-mercapto-3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazole 5 with various aromatic carboxylic acids in the presence of phosphorus oxychloride. The mercaptotriazole 5 was prepared from 4,the latter being prepared from 1 throng 2 and 3. The title compounds 6 were depicted in scheme 1. The structures of these compounds were established by elemental analysis, NMR, MS and IR techniques. 相似文献
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Hu Luo Wei Xia Chao Qian Xinzhi Chen Chaohong He 《Research on Chemical Intermediates》2011,37(8):1041-1045
8-[4-[4-(2-Pyrimidinyl)-1-piperaziny]butyl]-8-azaspiro [4,5] decane-7,9-dione hydrochloride (buspirone hydrochloride) was
obtained in one pot with a 51.8% overall yield. The key intermediate, 1-(2-pyrimidinyl) piperazine, was synthesized through
chlorination and cyclization condensation reaction with diethanolamine as initial material. This modified protocol has the
notable advantages of mild reaction condition, convenient operation, and high overall yield. 相似文献
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Synthesis of (Z)-4-hydroxytamoxifen and (Z)-2-[4-[1-(p-hydroxyphenyl)-2-phenyl]-1butenyl]phenoxyacetic acid 总被引:1,自引:0,他引:1
The synthesis of (Z)-4-hydroxytamoxifen and (Z)-2-[4-[1-(p-hydroxyphenyl)-2-phenyl]-1-butenyl]phenoxyacetic acid was accomplished using a McMurry reaction as the key step. The perfluorotolyl derivatives of the McMurry products enabled the separation of the minor undesirable geometrical isomer. The methodology proceeds without E,Z isomerization, employs a very mild final debenzylation step compatible with a large array of functional groups, and can be applied to the generation of a variety of 4-hydroxytamoxifen analogues. 相似文献
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通过E-[4-[2-(4-羟基苯基)乙烯基]吡啶与1,n-二溴烷烃亲核取代反应合成了4,4’-[1,n-亚烷基双[(E)-2-(4-氧苯基)乙烯基]]双吡啶[n=2(Ia),3(Ib),4(Ic),6(Id)].用元素分析、红外、紫外和质子核磁共振谱鉴定了Ia-Id的结构.将Ia-Id的稀溶液用中压汞灯和低压汞灯交替照射,发现其分子内光环加成反应的存在,并且随着亚烷基碳链的延长,反应速度加快.研究还发现锌离子可以与毗陡环上氮原子发生螯合作用使分子内光环加成反应加快.本文化合物荧光很弱,在较高浓度下有较强分子间激基缔合物荧光. 相似文献
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《Tetrahedron: Asymmetry》2005,16(16):2778-2783
The enantioselective microbial reduction of 6-oxo-8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-dione 1 to either of the corresponding (R)- or (S)-6-hydroxy-8-[4-[4-(2-pyrimidinyl)-1-piperazinyl]butyl]-8-azaspiro[4.5]decane-7,9-diones 2 and 3 is described. 相似文献
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Likewise the 1,3,4-thiadiazole nucleus which incorporates an N-C-S linkage exhibits a large number of biological activities[1]. The fused 1,3,4-triazolo[3,4-b]-1,3,4-thiadiazoles derivatives show various biological effects, such as antifungal[2], antibacterial, hypotensive and CNS depressant activities[3]. The novel 3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazolo[3,4-b]-1,3,4-thiadiazole 6 have been synthesized by the condensation of 4-amino-5-mercapto-3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazole 5 with formic acid in the presence of phosphorus oxychloride. The compound 5 was prepared from 4 that was prepared from 1 throng 2 and 3. Recently, we obtained the crystal structure of the novel compound 3-[5-methyl-1-(4-methylphenyl)-1,2,3-triazol-4-yl]-s-triazolo[3,4-b]-1,3,4-thiadiazole, C14H12Cl3N7S, Mr=416.72, Crystallizes in the triclinic space group with unit cell parameters a=9.049(2), b=10.486(3), c=10.843(2)Å, α=116.79(2), β=93.83(2), γ-100.64(3)°. V=889.3(4)Å3, Z=1, Dx-0.778 Mgm-3. The final R was 0.0535. 相似文献
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Vergil Percec James H. Wang Shigeru Okita 《Journal of polymer science. Part A, Polymer chemistry》1991,29(12):1789-1800
This article describes the synthesis and the cation-radical polymerization (Scholl reaction) of 1,3-bis[4-(1-naphthoxy) benzoyl] benzene ( 6 ) and 1,4-bis[4-(1-naphthoxy) benzoyl]- benzene ( 7 ) initiated by FeCI3. This polymerization produced poly(ether ether ketone ketone)s (PEEKK) of number average molecular weight (M?n) up to 5400 g/mol. The synthesis of bis[4-(1-naphthoxy) phenyl] methane ( 8 ), 1,3-bis[4-(1-napthoxy) phenylmethyl] benzene ( 9 ), and 1,4-bis[4-(1-naphthoxy) phenylmethyl] benzene ( 10 ) are also described. Polyethers of M?n up to 15400 g/mol at a FeCl3/monomer molar ratio of 2/1 were obtained. An increased polymerizability of the monomers 9 and 10 containing two CH2 groups versus that of the corresponding monomers containing two carbonyl groups ( 6 and 7 ) was observed. This enhanced polymerizability was explained based on the increased nucleophilicity of monomers 9 and 10 . 相似文献