咔唑功能化的长链端烯β-二酮的制备  

Preparation of a new β-diketone compound with carbazole and long chain end-alkene groups

作　　者：王歌扬[1] 徐茂梁[1] 周瑞[1] 于吉义[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《化学试剂》2009年第8期587-590,共4页Chemical Reagents

摘　　要：甲基酮和长链端烯酯在强碱叔丁醇钾、无溶剂的条件下,通过Claisen缩合反应,合成了一种新型的含咔唑的β-二酮类化合物[1-(9-乙基-3-咔唑基)-12-十三碳烯-1,3-二酮](KSH),并通过紫外光谱、红外光谱、核磁共振和元素分析对其结构进行了确证和表征。这种β-二酮化合物在氯仿溶液中主要以烯醇形式存在。在二氯甲烷溶液中,260～400nm的紫外光区具有强烈的特征吸收,室温下光致发射峰为419nm。该化合物可作为配体用于聚合物有机电致发光材料的合成。A new β-diketone compound with long chain endalkene and carbazole groups, 1-（ 9-ethyl-9H-earbazol-3-yl ）- tridee-12-ene-1,3-dione （KSH）, was synthesized from methyl ketone and ester by the classical Claisen condensation reaction using （CH3） 3COK as the strong base, and its structure was determined by means of UV, IR, ^1HNMR spectra and elemental analysis. The test results revealed that the new β-diketone compound had strong ultraviolet absorption in the UV region from 260 nm to 400 nm and existed in the enol form in chloroform solvent. The fluorescence spectra showed bluish violet emission with a peak wavelength of 419 nm at room temperature. It can be used in the synthesis of polymer light-emitting materials as a ligand.

关 键 词：咔唑 Β-二酮 长链端烯 Claisen缩合 

分 类 号：O623.524[理学—有机化学]