N-溴代丁二酰亞胺催化水楊醛與麥?zhǔn)纤岱磻?yīng)合成香豆素-3-羧酸
發(fā)布時(shí)間:2018-08-07 19:11
【摘要】:室溫條件下、水和乙醇的混合液中,N-溴代丁二酰亞胺(NBS)促進(jìn)2-羥基苯甲醛與麥?zhǔn)纤徇B續(xù)發(fā)生Knoevenagel縮合反應(yīng)和分子內(nèi)環(huán)化反應(yīng),高產(chǎn)率地合成了一系列的香豆素-3-羧酸.該方法擴(kuò)展了可用于合成香豆素-3-羧酸的催化劑的種類,同時(shí)還具有催化劑廉價(jià)易得、反應(yīng)條件清潔環(huán)保、底物適用性廣、后處理簡(jiǎn)單和產(chǎn)物易于純化等優(yōu)點(diǎn).
[Abstract]:At room temperature, N-bromosuccinimide (NBS) promoted the continuous Knoevenagel condensation and intramolecular cyclization of 2-hydroxybenzaldehyde and maleic acid in the mixture of water and ethanol. A series of coumarin -3-carboxylic acids were synthesized in high yield. This method extends the kinds of catalysts that can be used to synthesize coumarin -3-carboxylic acid. At the same time, it has the advantages of cheap and easy to obtain, clean and environmental protection reaction conditions, wide applicability of substrate, simple post-treatment and easy purification of the product.
【作者單位】: 遼寧師范大學(xué)化學(xué)化工學(xué)院;鞍山市教師進(jìn)修學(xué)校;
【基金】:國(guó)家自然科學(xué)基金(No.21403100) 遼寧省博士啟動(dòng)基金(No.20141100)資助項(xiàng)目~~
【分類號(hào)】:O626;O643.36
[Abstract]:At room temperature, N-bromosuccinimide (NBS) promoted the continuous Knoevenagel condensation and intramolecular cyclization of 2-hydroxybenzaldehyde and maleic acid in the mixture of water and ethanol. A series of coumarin -3-carboxylic acids were synthesized in high yield. This method extends the kinds of catalysts that can be used to synthesize coumarin -3-carboxylic acid. At the same time, it has the advantages of cheap and easy to obtain, clean and environmental protection reaction conditions, wide applicability of substrate, simple post-treatment and easy purification of the product.
【作者單位】: 遼寧師范大學(xué)化學(xué)化工學(xué)院;鞍山市教師進(jìn)修學(xué)校;
【基金】:國(guó)家自然科學(xué)基金(No.21403100) 遼寧省博士啟動(dòng)基金(No.20141100)資助項(xiàng)目~~
【分類號(hào)】:O626;O643.36
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