共查询到20条相似文献,搜索用时 62 毫秒
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碘代芴中间体在碱性条件下与咔唑发生偶联反应,合成了两种新型的有机小分子发光材料2-咔唑-9,9-二丁基芴(CZF)与2,7-二咔唑-9,9-二丁基芴(DCZF),其结构经1H NMR, 13C NMR和MS表征。采用FL, UV-Vis和TGA研究了CZF和DCZF的性能。结果表明:CZF和DCZF溶液与固体的荧光发射峰分别位于360 nm, 368 nm和370 nm, 389 nm, DCZF在390 nm和410 nm处存在两个较宽肩峰。CZF和DCZF的热稳定性较好,热分解温度分别为350 ℃和420 ℃。 相似文献
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新型咔唑衍生物的合成及其晶体结构 总被引:1,自引:0,他引:1
通过9-乙基咔唑-3-甲醛与4-氨基-3,5-二甲基-1,2,4-三氮唑反应,合成了一种新型咔唑衍生物-- 9-乙基咔唑-3-甲醛缩4-氨基-3,5-二乙基-1,2,4-三氮唑(1),其结构经1H NMR, IR和X-射线单晶衍射表征.1属单斜晶系,P2(1)/n空间群,晶胞参数为:a=8.829(8)(A), b=9.863(10)(A), c=19.530(15)(A), β=101.65(5)°, V=1 666(3)(A)3, Dc=1.266 g·cm-3, Z=4, F(000)=672, μ=0.079 mm-1.最终偏离因子R1=0.075 6. 相似文献
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希土取代苯基化合物的合成 总被引:1,自引:0,他引:1
1970年Hart等利用苯基锂的乙醚溶液与希土氯化物的四氢呋喃悬浮液反应,首次合成了希土苯基化合物(C_6H_5)_3Ln(Ln=Sc、Y),LiLn(C_6H_5)_4(Ln=La、Pr),但没有得到满意的碳氢分析数据,碳的实测值仅为计算值的三分之二左右。其他希土苯基化合物的合成也有报道。为了进一步探索希土芳基化合物的合成方法,希土和芳基之间成键的可能性,我们使用邻甲氧基苯基锂和对甲基苯基锂与希土氯化物反应,试图合成新的希土取代苯基化合物。 相似文献
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Novel benzocyclobutene derivatives, 3-mercaptobicyclo[4.2.0]octa-1,3,5-triene (2), and 3-chlorosulfonylbicyclo[4.2.0]octa-1,3,5-triene (3), have been synthesized in good yields from easily accessible bromobenzocyclobutene 5. 相似文献
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Naki Çolak Yılmaz Yıldırır Mustafa Kavutcu Nilhan Nurlu 《Monatshefte für Chemie / Chemical Monthly》2007,138(12):1283-1287
Summary. Methotrexate (MTX) is a folate antagonist used in treatment of several chronic inflammatory and neoplastic conditions. In this study, new MTX-like compounds that may-be potential anticancer agents were synthesized and their structures were determined by IR, UV, GC-MS,
1H NMR, and 13C NMR spectra. Also, in this study, a series structurally related to MTX or folate analogous compounds were evaluated whether they have inhibitory properties on the dihydrofolate reductase activity
(DHFR). 相似文献
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以二芳基乙酮(4a~4f)和取代丙酮(5a~5c)为原料,KHCO3为碱,100 ℃空气条件下,在DMSO中经二芳基乙酮氧化、羟醛缩合一锅法合成了12个羟基环戊烯酮化合物(6a~6l),其中6d, 6h和6i为新化合物,其结构经1H NMR, 13C NMR和HR-MS(ESI)表征。 相似文献
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YongCHU MingXiaXU DingLU 《中国化学快报》2004,15(9):1011-1014
Based on our previous studies of 3D-QSAR, 38 novel objective compounds belonging to 4 series were designed and successfully synthesized directed by the idea of reconstructing the structure of non-pharmacophores while reserving essential ones in triazoles. In vitro pilot studies on their antifungal activities showed that most compounds have inhibitory effects on C.albicans and some inhibit S.cerevisiae also. The effects on C.albicans of 5 compounds are more potent than or equal to that of fluconazole or itraconazole. 相似文献
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新型吡唑并嘧啶并吡唑三元稠合化合物的合成 总被引:1,自引:0,他引:1
Novel fused heterotricyclic compounds 3—6 containing two different dipyrazolopyrimidine framework were prepared from 1a—1d. The reaction of 1 with K2CO3 in DMSO or NaH in DMF led to the formation of 2 or 3, respectively, which reacted further to afford 6 or 5, respectively. 相似文献
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1,3,3-三甲基-2-亚甲基吲哚啉合成新工艺研究 总被引:2,自引:0,他引:2
1,3,3┐三甲基┐2┐亚甲基吲哚啉合成新工艺研究马新起李明静乔聪震(河南大学化学化工学院开封475001)侯希峰(开封化学试剂总厂475001)马新起男,33岁,讲师,从事化学工程教学精细化学品的开发与研究。河南省教委资助研究项目1997-06-3... 相似文献