Iodobenzene diacetate (IBD) catalyzed an quick oxidative aromatization of Hantzsch-1,4-dihydropyridines to pyridines under ultrasonic irradiation

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Synthesis and Aromatization of Hantzsch 1 , 4 - Dihydropyridines under Microwave Irradiation . An Overview

Domestic microwave ovens as well as laboratory reactors have been successfully employed to prepare dialkyl 1,4-dihydropyridine-3,5-dicarboxylates and to induce the synthesis of the corresponding aromatic derivatives. In that latter particular case, unexpected results have been reported.

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Oxidation of Hantzsch 1,4- Dihydropyridines to Pyridines with Thallium Triacetate

Hantzsch 1, 4-dihydropyridines (1,4-DHPs) can be oxidized to the corresponding pyridine derivatives by thallium triacetate in high yields.

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AROMATIZATION OF HANTZSCH 1,4- DIHYDROPYRIDINES WITH ZINC CHLOROCHROMATE NONAHYDRATE

Hantzsch 1 ,4- dihy&opyridines are rapidly oxidized to the corresponding pyridine derivatives using zinc chlorochromate nonahydrate [Zn(C1CrO ) .9H O] in dichloromethane at room temperature. In addition to aromatization, no loss of the 4- substituent is observed

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oxidation of hantzsch 1,4- dihydropyridines to pyridines with thallium triacetate

hantzsch 1, 4-dihydropyridines (1,4-dhps) can be oxidized to the corresponding pyridine derivatives by thallium triacetate in high yields.

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aromatization of hantzsch 1,4- dihydropyridines with zinc chlorochromate nonahydrate

hantzsch 1 ,4- dihy&opyridines; are rapidly oxidized to the corresponding pyridine derivatives using zinc chlorochromate nonahydrate [zn(c1cro ) .9h o] in dichloromethane at room temperature. in addition to aromatization, no loss of the 4- substituent is observed

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ژورنال

عنوان ژورنال: Ultrasonics Sonochemistry

سال: 2012

ISSN: 1350-4177

DOI: 10.1016/j.ultsonch.2011.12.021