【正文】
iving creature analysis realm, is the near red and outside fluorescence dyestuff that bines with the living creature member covalence at addition the crocic acid dyestuff is a type of new near and red outside absorption dyestuff, in order to having, the good light heat stabilizes to go to give out light to go with fluorescence ability, as a result at optical record with saving the realm have latent of applied a lately synthesizing of the crocic acid route, take tetrachlorobenzoquinone as raw material, Be turned by AN oxygen radicle, water solution, oxidize to take off Zui three step systems Gao Chun Du39。整個反應(yīng)通過六個步驟的研究,并得到了反應(yīng)的最佳條件,具體如下:1) 四甲氧基苯醌過程中所用甲醇溶液必須為無水甲醇,在回流反應(yīng)前溶液冷卻后的溫度15℃,然后進一步回流反應(yīng);2) 甲氧基苯醌水解反應(yīng)過程中,當(dāng)氫溴酸與醋酸摩爾比為1:1時,四羥基苯醌與2mol/L的鹽酸溶液中重結(jié)晶產(chǎn)品收率最佳;3) ,產(chǎn)品收率最理想。和從乙二醛出發(fā)的傳統(tǒng)制法相比,該路線原料易得,條件溫和,總收率可達35%,高于傳統(tǒng)法的收率約10%。此外克酮酸染料是一類新型的近紅外吸收染料,由于具有良好的光熱穩(wěn)定行和熒光發(fā)光性能,因而在光學(xué)記錄與存儲領(lǐng)域有著潛在的應(yīng)用價值。目 錄引言…………………………………………………………………………………………1 第一章 克酮酸的合成綜述……………………………………………………………2 ………………………………………………………………………… 2 ………………………………………………………………………2 ……………………………………………………………………3 乙二醛聚合、脫羧法………………………………………………………………3 、水解、氧化脫羧法………………………………………3 ……………………………………………………………………4第二章 實驗部分………………………………………………………………5 ………………………………………………………………………………5 實驗儀器、試劑………………………………………………………………5 ……………………………………………………………………………5 …………………………………………………………………………………6 實驗步驟………………………………………………………………………………7 ………………………………………………………………7 四羥基苯醌的合成…………………………………………………………………8 ………………………………………………………………………8第三章 結(jié)果與討論 ……………………………………………………………………10 …………………………………………10 ………………………………10………………………………………10 ………………………………………11 …………………………………………11 HCl濃度對實驗結(jié)果的影響………………………………………………………12 ………………………………13 最佳實驗條件的驗證 ………………………………………………………………14結(jié)論……………………………………………………………………………16致謝……………………………………………………………………………17參考文獻………………………………………………………………………18克酮酸的合成研究專業(yè)班級:化電05 學(xué)生姓名:張堯銘指導(dǎo)老師:殷偉芬 職稱:高級工程師摘要:克酮酸是一種重要的化學(xué)中間體,用途十分廣泛?,F(xiàn)今克酮酸被用于生物分析領(lǐng)域,是與生物分子共價結(jié)合的近紅外熒光染料。研究了克酮酸的新合成路線,以四氯苯醌為原料,經(jīng)甲氧基化,水解,氧化脫羧三步制得高純度的克酮酸。反應(yīng)以四氯苯醌為原料,合成高純度的克酮酸(4,5二羥基4環(huán)戊烯1,2,3,三酮)。經(jīng)過優(yōu)化的工藝條件比傳統(tǒng)路線反應(yīng)條件溫和,收率高,為克酮酸的制備和工業(yè)化生產(chǎn)開辟了一條新的途徑。s crocic traditional method for making setting out with two Quans from B pares, the route39。s crocic acid from the tetrachlorobenzoquinone.((or4,5dihydroxy4cyclopentene1,2,3trione)The whole reaction passes six researches of steps, and got the best condition of reaction, concretely as follows:1)The methyl alcohol aqua used