Synthesis and Characterization of 1‐(Carboxymethyl)Pyridinium Bromide [CMPy]Br Molten Salt: Application as a Novel Nanocatalyst for the Synthesis of Bis‐Naphthodipyrans,ChemistrySelect

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Synthesis and Characterization of 1‐(Carboxymethyl)Pyridinium Bromide [CMPy]Br Molten Salt: Application as a Novel Nanocatalyst for the Synthesis of Bis‐Naphthodipyrans
ChemistrySelect ( IF 1.9 ) Pub Date : 2018-12-04 , DOI: 10.1002/slct.201802971
Mostafa Rajabi‐salek ₁ , Mohammad Ali Zolfigol ₁ , Mahmoud Zarei ₁ , Ehsan Noroozizadeh ₁ , Iraj Mohammadpoor‐Baltork ₂ , Hadi Amiri Rudbari ₂

Affiliation

Herein, a convenient method for the synthesis of bis‐naphthodipyrans from the condensation of naphthalene‐2,3‐diol, malononitrile and various aromatic aldehydes using acetic acid functionalized pyridinium salt 1‐(carboxymethyl)pyridinium bromide [CMPy]Br as a novel, efficient, reusable and nanocatalyst is described. The synthesized catalyst was fully characterized by using various techniques such as single crystal X‐ray diffraction (SCXRD), ¹H NMR, ¹³C NMR, Fourier transform infrared spectroscopy (FT‐IR), mass spectra, scanning electron microscope (SEM), transmission electron microscopy (TEM), X‐ray diffraction analysis (XRD) and Differential thermal analysis (TG/DTG). The major advantages of the convenient method are high yields, short reaction time, and reusability of the catalyst.

中文翻译：

1-（羧甲基）溴化吡啶鎓[CMPy] Br熔融盐的合成与表征：作为新型的合成双萘并二吡喃的纳米催化剂的应用

在此，一种方便的方法是使用乙酸官能化的吡啶鎓盐1-（羧甲基）溴化吡啶[CMPy] Br作为新型化合物，由萘-2,3-二醇，丙二腈和各种芳香醛的缩合反应合成双萘并吡喃，描述了一种高效，可重复使用的纳米催化剂。使用各种技术对合成的催化剂进行了充分表征，例如单晶X射线衍射（SCXRD），¹ H NMR，¹³ C NMR，傅里叶变换红外光谱（FT-IR），质谱，扫描电子显微镜（SEM），透射电子显微镜（TEM），X射线衍射分析（XRD）和差热分析（TG / DTG）。方便的方法的主要优点是产率高，反应时间短和催化剂的可重复使用性。

更新日期：2018-12-04

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