共查询到19条相似文献,搜索用时 125 毫秒
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介绍了环蕃化学的结构特点及应用新进展,重点综述了:(1)多种新型环蕃化合物的合成;(2)多种新型环蕃化合物的分子离子识别;(3)多种新型环蕃化合物对手性分子的识别及仿生研究。展望了其广阔的发展和应用前景。期望能在医药学、生命科学、材料科学、环境科学及能源科学的应用上更有意义。 相似文献
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简要介绍了环蕃的结构特征、性质及应用,详细综述了:①新型超分子大环配体环蕃的合成及应用;②新型环蕃的合成及选择性识别作用;③新型手性环蕃的合成及应用。 相似文献
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简要介绍了大环化学的产生、发展及应用。重点综述了:(1)新型大环化合物的合成及应用;(2)新型环糊精衍生物的合成及应用;(3)新型大环化合物轮烷和索烃的合成及应用。并对大环化学的发展进行了展望。 相似文献
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《合成材料老化与应用》2017,(3)
简要介绍了瓜环化学的产生、发展、应用及结构特征,详细综述了:(1)新型瓜环化合物的合成及应用;(2)新型瓜环化合物的合成及超分子自组装;(3)用"一锅法"合成瓜环化合物及其应用。并对瓜环化学的发展进行了展望。 相似文献
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糖番是由醛糖化合物与芳香族化合物反应而生成的大环化合物,构象上与环糊精和环番间存在着相似和差异,兼有环糊精和环番的性质,可以看成是环糊精和环番的的复合体分子。是一种具有很高研究开发和应用价值的新型手性受体分子。就其最新合成研究进展作一综述。 相似文献
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B. Windisch F. Vgtle M. Nieger T. Lahtinen K. Rissanen 《Advanced Synthesis \u0026amp; Catalysis》2000,342(7):642-653
We report the synthesis of a series of new hydrocarbon macrocycles. Following the dithia‐phane route, four large rings 3 ‐ 6 of the cyclophane type containing different numbers of ring atoms were prepared confirming the general applicability of this route compared to alternative macrocyclizations. Cycle 3 is the hydrocarbon analogue to the tetra‐lactam and the sulfone amide macrocycles 1 and 2 used in many rotaxane syntheses. The macrocycles synthesized here are supposed to be uselful as wheels in the slippingapproach to rotaxanes to further establish a reference system for the cavity size of cyclic compounds by comparing them to certain complemenatry blocking groups. The x‐ray data obtained of the macrocycles 3 , 5 , and 6 reveal the cavity shape and size in solid state. 相似文献
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Two syntheses are presented for [2.2.2] (1,2,3)cyclophane (7), the remaining member of the symmetrical [2n]cyclophanes whose preparation has not previously been described. The first method involved the dimerization of 2,6-bis (4′, 4′-dimethyl-2′-oxazolinyl)toluene ( 1 ) to give 2 which, on hydrolysis, produced the tetracarboxylic acid 3 . Conversion of 3 , via the acid chloride ( 4 ), to the tetraol 5 , followed by treatment with phosphorus tribromide yielded the tetrabromide 6 . The overall scheme was then completed by reaction of 6 with phenyllithium to give [2.2.2] (1,2,3) cyclophane ( 7 ). An alternate, more convenient, method began with the pyrolysis of 2,6-bis (chloromethyl)toluene ( 8 ) to give 3-chloromethylbenzocyclobutene ( 9 ). Formation of the Grignard of 9, followed by reaction with ferric chloride, yielded the dimer 10 . Pyrolysis of 10 then gave [2.2.2] (1,2,3)cyclophane (7). 相似文献
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Masataka Kubo Hirozumi Takeuchi Shin -Ichi Hara Nobuyuki Mouri Takahito Itoh 《Polymer Bulletin》1997,39(4):431-436
Poly(tert-butyl acrylate)-coupled cyclophane was obtained by coupling 1,6,20,25-tetraaza[6.1.6.1]paracyclophane with carboxyl-terminated
poly(tert-butyl acrylate). The poly(tert-butyl acrylate) was quantitatively hydrolyzed to poly(acrylic acid). The cyclophane carrying poly(acrylic acid) was soluble
in alkaline water and formed an inclusion complex with trimethyl-2-naphthylmethylammonium bromide as a guest.
Received: 2 July 1997/Revised: 22 August 1997/Accepted: 29 August 1997 相似文献
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In spite of the remarkable progress of cyclophane chemistry, syntheses of polymers containing cyclophane units in the main chain and side chain by utilizing the transannular π–π interaction are considerably limited. In this review, syntheses, properties, and applications of [m,n]cyclophanes-containing (m?3 and n?3) polymers prepared to date are presented. The main body of the review is classified into broadly four categories: introduction of (i) main-chain-type cyclophane-containing polymers, (ii) side-chain-type cyclophane-containing polymers, (iii) rigid-rod conjugated polymers containing pendent aromatic rings, and finally (iv) aromatic-ring-layered polymers comprising [2.2]paracyclophane. 相似文献
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瓜环化学研究的新进展 总被引:1,自引:0,他引:1
介绍了瓜环化学的概念、定义,瓜环的结构特征及应用的新进展。重点综述了:①多种新型瓜环化合物的合成;②瓜环化合物的超分子自组装;③瓜环主体与分子离子客体包合物的形成。期望能在医药学、生命科学、材料科学、环境科学及能源科学的应用上更有意义。 相似文献