Synthesis of amino-centered, nitro-capped phenylacetylene-monodendrons
文献类型：期刊论文
| 作者 | Chen, ML; Chi, CY; Wang, XH; Zhao, XJ; Li, J; Wang, FS |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2004-07-01 |
| 卷号 | 25期号:7页码:1359-1362 |
| 关键词 | Solid-phase Synthesis Iterative Divergent/convergent Phenylacetylene-monodendron Coupling Reactions |
| ISSN号 | 0251-0790 |
| 英文摘要 | A rapid and convenient-solid-supported iterative divergent/convergent approach was utilized to prepare the nitro-capped phenylacetylene-monodendrons I-G1-(NO2)(2) and I-G(2)-(NO2)(4), which were transformed into the expected amino-centered, nitro-capped monodendrons NH2-G1-(NO2)(2) and NH2-G(2)(NO2)(4) by Heck-Cassar-Sonogashira-Hagihara coupling reactions. Transmittance FTIR spectroscopy followed the whole solid-phase approach. The absorption peaks at 2 157 (1) and 3 311(1) cm(-1) were the characteristic of the stretching vibration for the carbon-carbon triple bond in trimethylsilyl-protected acetylene and the carbon-hydrogen bond in the terminal acetylene after desilylation, respectively. Upon coupling reaction, the peak at 1 343(1) cm(-1) was observed in P-G1-(NO2)(2) and P-G2-(NO2)(4), which was the characteristic of the stretching vibration for the terminal nitro groups. Both NH2-G1-(NO2)(2) and NH2-G(2)(NO2)(4) were confirmed by UV-Vis, IR, NMR, EI-MS and ESI-MS techniques. UV-Vis spectra of the obtained monodendrons showed a good relationship with their structures. Both I-G2-(NO2)(4) and NH2-G(2)(NO2)(4) showed a blue shift of (20 +/- 1) nm for the absorption peaks, compared with those of I-G1-(NO2)(2) and NH2-G1-(NO2)(2), which is probably due to the increase in the number of the terminal nitro groups. Upon coupling with the electron donor-amino group, both NH2-G1-(NO2)(2) and NH2-G2- (NO2)(4) showed a. red shift of (6 +/- 1) nm for the absorption peaks, compared with those of I-G1-(NO2)(2) and I-G2-(NO2)(4). |
| 语种 | 英语 |
| WOS记录号 | WOS:000222906300043 |
| 出版者 | HIGHER EDUCATION PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55171]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, XH |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, ML,Chi, CY,Wang, XH,et al. Synthesis of amino-centered, nitro-capped phenylacetylene-monodendrons[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2004,25(7):1359-1362. |
| APA | Chen, ML,Chi, CY,Wang, XH,Zhao, XJ,Li, J,&Wang, FS.(2004).Synthesis of amino-centered, nitro-capped phenylacetylene-monodendrons.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,25(7),1359-1362. |
| MLA | Chen, ML,et al."Synthesis of amino-centered, nitro-capped phenylacetylene-monodendrons".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 25.7(2004):1359-1362. |
入库方式： OAI收割
来源：化学研究所
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