✦ LIBER ✦

The reaction of (N-isocyanimino) triphenylphosphorane with (E)-3-aryl-2- propenoic acid derivatives: One-pot synthesis of 2-[(E)-2-aryl-1-ethenyl]-1,3,4-oxadiazoles via intramolecular aza-Wittig reaction

✍ Scribed by Hamideh Ahankar; Ali Ramazani; Issa Amini; Yavar Ahmadi; Ali Souldozi

Publisher: John Wiley and Sons
Year: 2011
Tongue: English
Weight: 82 KB
Volume: 22
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.20701

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The reaction of (E)‐3‐aryl‐2‐propenoic acid derivatives with (N‐isocyanimino) triphenylphosphorane proceeds smoothly at room temperature to afford the corresponding 2‐[(E)‐2‐aryl‐1‐ethenyl]‐1,3,4‐oxadiazole via an intramolecular aza‐Wittig reaction in good yields under neutral conditions. The structures of the products were deduced from their IR, ^1^H NMR, and ^13^C NMR spectra and mass spectrometry. © 2011 Wiley Periodicals, Inc. Heteroatom Chem 22:612–616, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20701

📜 SIMILAR VOLUMES

ChemInform Abstract: The Reaction of (N-

ChemInform Abstract: The Reaction of (N-Isocyanimino)triphenylphosphorane with (E)-3-Aryl-2-propenoic Acid Derivatives: One-Pot Synthesis of 2-[(E)-2-Aryl-1-ethenyl]-1,3,4-oxadiazoles via Intramolecular aza-Wittig Reaction.

✍ Hamideh Ahankar; Ali Ramazani; Issa Amini; Yavar Ahmadi; Ali Souldozi 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 23 KB 👁 2 views

The Reaction of (N-Isocyanimino)tripheny

The Reaction of (N-Isocyanimino)triphenylphosphorane with Benzoic Acid Derivatives: A Novel Synthesis of 2-Aryl-1,3,4-oxadiazole Derivatives.

✍ Ali Souldozi; Ali Ramazani 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 16 KB 👁 2 views

The Reaction of (N-Isocyanimino)tripheny

The Reaction of (N-Isocyanimino)triphenylphosphorane with Biacetyl in the Presence of Aromatic Carboxylic Acids: Efficient One-Pot Three-Component Reaction for the Synthesis of 3-(5-Aryl-1,3,4-oxadiazol-2-yl)-3-hydroxybutan-2-one Derivatives

✍ Ali Ramazani; Morteza Rouhani; Aram Rezaei; Nahid Shajari; Ali Souldozi 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 German ⚖ 157 KB 👁 2 views

Reactions of biacetyl (¼ butane-2,3-dione) with (N-isocyanimino)triphenylphosphorane in the presence of aromatic carboxylic acids proceed smoothly at room temperature and under neutral conditions to afford 3-(5-aryl-1,3,4-oxadiazol-2-yl)-3-hydroxybutan-2-one derivatives in high yields. Introduction

ChemInform Abstract: The Reaction of (N-

ChemInform Abstract: The Reaction of (N-Isocyanimino)triphenylphosphorane with Biacetyl in the Presence of Aromatic Carboxylic Acids: Efficient One-Pot Three-Component Reaction for the Synthesis of 3-(5-Aryl-1,3,4-oxadiazol-2-yl)-3-hydroxybutan-2-one Derivatives (IV).

✍ Ali Ramazani; Morteza Rouhani; Aram Rezaei; Nahid Shajari; Ali Souldozi 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 23 KB 👁 3 views

ChemInform Abstract: Synthesis of Pyrazi

ChemInform Abstract: Synthesis of Pyrazino[2,3-e][1,4]diazepin-5-one and Pyrazino[2,3-e]pyrrolo[1,2-a][1,4]diazepin-5-one Derivatives via the Intramolecular Aza-Wittig Reaction.

✍ T. OKAWA; S. EGUCHI 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 39 KB 👁 1 views

Efficient one-pot synthesis of disubstit

Efficient one-pot synthesis of disubstituted 1,3,4-oxadiazole derivatives from the reaction of (N-isocyanimino)triphenylphosphorane, acetaldehyde, a secondary amine, and an electron-poor (E)-cinnamic acid

✍ Ali Ramazani; Yavar Ahmadi; Roghayeh Tarasi 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 165 KB 👁 1 views

## Abstract The iminium intermediate formed by the reaction of a secondary amine with acetaldehyde was reacted by (__N__‐isocyanimino) triphenylphosphorane in the presence of an electron‐poor (__E__)‐cinnamic acid derivative to give the corresponding iminophosphorane intermediate, whose intramolecu