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来自维基百科,自由的百科全书
帕尔-克诺尔合成(德语:Paal-Knorr-Synthese)是由1,4-二羰基化合物作原料环化制取呋喃、噻吩或吡咯类化合物的方法。得名于化学家卡尔·帕尔(Carl Paal)和路德维希·克诺尔(Ludwig Knorr)。[1][2][3]
原料在无水酸性条件下失水生成呋喃环系:[4]
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