337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看
第 34 卷第 2 期Vol. 34 No. 2
2004 年 4 月Apr 2004

所屬欄目:其它

不對稱(chēng)取代4-甲基-2,2′-聯(lián)吡啶的制備和分析
羅爭; 胡濬喆; 林保平(東南大學(xué)化工系; 江蘇南京)
摘 要:分別以4 甲基吡啶、2 溴吡啶為原料,再與相應的溴化吡啶反應,在零價(jià)鈀催化劑作用下,采用still炭 炭偶合成鍵反應制備目標產(chǎn)物,并用化學(xué)計算分析了影響產(chǎn)率的因素,并用紅外光譜、質(zhì)子核磁共振譜等手段對化合物進(jìn)行了表征。
關(guān)鍵詞:4-甲基吡啶; Stille反應; 4-甲-基2; 2′-聯(lián)吡啶; 電荷
中圖分類(lèi)號:TQ253.2  文獻標識碼:A  文章編號:1009-9212(2004)02-0022-03
The Synthesis and Analysis of Unsymmetrically 4-Methyl-2,2′-Bipyridines
LUO Zheng; HU Jun-zhe; LIN Bao-ping (Chemistry Department of Southeast University; Nanjing 210096; China)
Abstract:The unsymmetrically 4-methyl-2,2′-bipyridines were synthesized from two material. The one was 2-bromine-pyridine and the other was 4-methyl-pyridine, which reacted with bromized-pyridine to get the title compoudns using Pd(O) as catalyst. The structure of the compound was proved by NMR and IR.
Key words:4-methyl-pyridine; Stille reaction; 4-methyl-2; 2′-bipyridine; charge
收稿日期:2003-10-16
閱讀全文
337P日本大胆欧美裸体艺术_久久久久精品无码专区_一个人看的免费视频WWW中文字幕_欧美熟妇精品视频网免费观看