𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Gas-phase pyrolysis in organic synthesis: New route for synthesis of functionally substituted imidazoles

✍ Scribed by Osman M. E. El-Dusouqui; Nouria A. Al-Awadi; Mohamed H. Elnagdi; Mervat M. Abdelkhalik

Publisher
Journal of Heterocyclic Chemistry
Year
2008
Tongue
English
Weight
136 KB
Volume
45
Category
Article
ISSN
0022-152X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

magnified image

1,2,3‐Triazolylpropanone was prepared and coupled with aryldiazonium salts yielding the corresponding arylhydrazones. Gas‐phase pyrolysis of the hydrazono derivative produced N‐arylamino‐2‐acetylimidazole as well as 2‐acetylimidazole. The latter is the product of further pyrolysis of the former.

📜 SIMILAR VOLUMES

Gas-phase pyrolysis in organic synthesis
Gas-phase pyrolysis in organic synthesis: A route for synthesis of cyanamides
✍ Nouria A. Al-Awadi; Mervat Mohammed Abdelkhalik; Osman M. E. El-Dusouqui; Mohamm 📂 Article 📅 2009 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 69 KB

## Abstract magnified image Pyrolysis of 1,7‐di‐[(__E__)‐1‐morpholinomethylidene]‐ and 1,7‐di‐[(__E__)‐1‐piperidino‐methylidene]‐4,6,10,12‐tetramethylamino‐2,8‐dioxo‐1,7‐diaza‐3,5,9,11‐cyclododecatetraene‐3,9‐dicarbonitrile **6a**, **6b** afforded pyridone **10** in addition to cyanamides **11a**,

Gas-phase pyrolysis in heterocyclic synt
Gas-phase pyrolysis in heterocyclic synthesis. Gas-phase elimination reactions of some substituted aminoazoles
✍ Nouria A. Al-Awadi; Mohamed H. Elnagdi 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 183 KB 👁 2 views

Gas-phase pyrolyses of ethyl N-(5-cyanomethyl-1,3,4thiadiazol-3-yl)carbamate ( ), 1-benzoyl-3-(3-methylpyrazol-5-yl)thiourea ( ), 1-benzoyl-3-(5-methylisoxazol-3-yl)thiourea ( ), and 1-acetyl-3-(3-phenylpyrazol-5-yl)thiourea ( ) have been studied. These reactions were homogeneous and unimolecular. T

Gas-phase pyrolysis in organic synthesis
Gas-phase pyrolysis in organic synthesis. Part 3: Novel cyclization of 2-arylhydrazonopropanals into cinnolines1
✍ Ajith Kumar; Nouria A. Al-Awadi; Mohamed H. Elnagdi; Yehia A. Ibrahim; Kamini Ka 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 60 KB

## Abstract 3‐oxo‐3‐aryl‐2‐arylhydrazonopropanals **(1)** have been converted under thermal gas‐phase conditions cleanly into cinnolines **(2)**. A plausible mechanism is suggested to account for this transformation based on the kinetics and products of reaction. © 2001 John Wiley & Sons, Inc. Int