ZrO2 nanoparticles as a reusable solid dual acid-base catalyst for facile one-pot synthesis of multi-functionalized spirooxindole derivatives under solvent free condition

Bodhak Chandan; Kundu Ashis; Pramanik Animesh

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ZrO2 nanoparticles as a reusable solid dual acid-base catalyst for facile one-pot synthesis of multi-functionalized spirooxindole derivatives under solvent free condition

机译：ZrO2纳米粒子作为可重复使用的固体双酸碱催化剂，适用于溶剂无溶剂条件下的多官能化螺氧吲哚衍生物的一体的单罐合成

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A two-step one-pot protocol for the facile synthesis of biologically important spirooxindole derivatives such as spiro[4H-pyran-3,3'-oxindoles] and spiro[indoline-3,4'(1H')-pyrano-[2,3-c]pyrazol-2-ones has been developed. In this method ZrO2 nanoparticles have been utilized as a reusable solid dual acid-base catalyst to get quick access to the multi-functionalized spirooxindole derivatives under solvent free condition at room temperature. The main advantages of this method are the operational simplicity, reduced reaction time, elimination of solvents, high yield of the products, convenient work up procedure and employment of nontoxic and recyclable ZrO2 nano catalyst. All these factors make the present method economical, green and sustainable.

机译：一种两步一锅方案，适用于体内重要的生物学上重要的螺氧吲哚衍生物的合成，如螺氧[4H-吡喃-3,3'-氧胆砂]和螺氧[吲哚-3,4'（1H'） - Pyrano-[2 已经开发了3-C]吡唑-2-吡唑-2-。在该方法中，ZrO2纳米颗粒已被用作可重复使用的固体双酸碱催化剂，以便在室温下在溶剂的无溶剂条件下快速进入多功能螺氧吲哚衍生物。该方法的主要优点是操作简单，减少反应时间，消除溶剂，产品的高产率，工程方便的过程和无毒性和可回收ZrO2纳米催化剂的使用。所有这些因素都使本方法经济，绿色和可持续性。

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《RSC Advances》 |2015年第104期|共12页
作者
Bodhak Chandan; Kundu Ashis; Pramanik Animesh;
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Univ Calcutta Dept Chem Kolkata 700009 India;

Univ Calcutta Dept Chem Kolkata 700009 India;

Univ Calcutta Dept Chem Kolkata 700009 India;

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正文语种 eng
中图分类化学;
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1. ZrO2 nanoparticles as a reusable solid dual acid-base catalyst for facile one-pot synthesis of multi-functionalized spirooxindole derivatives under solvent free condition [J] . Bodhak Chandan, Kundu Ashis, Pramanik Animesh RSC Advances . 2015,第104期

机译：ZrO2纳米粒子作为可重复使用的固体双酸碱催化剂，适用于溶剂无溶剂条件下的多官能化螺氧吲哚衍生物的一体的单罐合成
2. Facile one-pot three-component synthesis of diverse 2,3-disubstituted isoindolin-1-ones using ZrO2 nanoparticles as a reusable dual acid–base solid support under solvent-free conditions [J] . Kamalesh Debnath, Sayan Mukherjee, Chandan Bodhak, RSC Advances . 2016,第25期

机译：在无溶剂条件下，使用ZrO2纳米颗粒的ZrO2纳米颗粒的不同2,3-二取代的异吲哚啉-1-罐的三组分合成。在无溶剂条件下，可重复使用的双酸碱固体载体
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机译：CuO纳米颗粒：在水性条件下，用于单罐合成4-氨基-5-嘧啶羰腈的温和和有效的可再使用催化剂
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ZrO2 nanoparticles as a reusable solid dual acid-base catalyst for facile one-pot synthesis of multi-functionalized spirooxindole derivatives under solvent free condition

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