Precise Synthesis of End-Functionalized Oligo(2,5-dialkoxy-1,4-phenylene vinylene)s with Controlled Repeat Units via Combined Olefin Metathesis and Wittig-Type Coupling

被引:18
作者
Abdellatif, Mohamed Mehawed [1 ]
Nomura, Kotohiro [1 ,2 ]
机构
[1] Tokyo Metropolitan Univ, Dept Chem, Fac Sci & Engn, Hachioji, Tokyo 1920397, Japan
[2] Japan Sci & Technol Agcy JST, Adv Catalyt Transformat Carbon Utilizat ACT C, Kawaguchi, Saitama 3320012, Japan
基金
日本科学技术振兴机构;
关键词
ALL-TRANS OLIGOMERS; CONJUGATED POLYMERS; MOLECULAR-WEIGHT; PV-OLIGOMERS; POLY(ETHYLENE GLYCOL); BAND-GAP; MOLYBDENUM; POLYMERIZATION; POLY(MACROMONOMER)S; SUGARS;
D O I
10.1021/ol400397p
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The precise synthesis of chemically, analytically pure oligo(2,5-dialkoxy-1,4-phenylene vinylene)s [OPVs, alkoxy = O(CH2)(2)OSiiPr(3)] with strictly controlled repeat units (up to 15 repeat units) and well-defined end groups has been achieved by a combined olefin metathesis reaction of 2,5-dialkon-1,4 divinylbenzene or their derivatives with a molybdenum-alkylidene complex and the subsequent Wittig-type cleavage with their dicarboxaldehyde analogues. The effects of the repeat units and the end functional groups toward their UV-vis and the fluorescence spectra have been clearly demonstrated.
引用
收藏
页码:1618 / 1621
页数:4
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