Catalyst-free domino reaction in water/ethanol: an efficient, regio- and chemoselective one-pot multi-component synthesis of pyranopyrazole derivatives
作者:Majid Koohshari、Minoo Dabiri、Peyman Salehi
DOI:10.1039/c3ra47639a
日期:——
The synthesis of pyrano[2,3-c]pyrazole derivatives has been described by regio- and chemoselective four-component reaction of a dialkyl 3-oxopentanedioate, an active carbonyl compound, hydrazine and malononitrile in water/ethanol as a green medium under catalyst-free condition.
吡喃并[2,3- c ]吡唑衍生物的合成已通过在水/乙醇中作为绿色介质在催化剂下以3-氧戊二烯二酸二烷基酯,活性羰基化合物,肼和丙二腈的区域和化学选择性四组分反应进行了描述。无状态。