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ChemInform Abstract: Cyclization vs. Elimination Reactions of 5-Aryl-5-hydroxy 1,3-Diones: One-Pot Synthesis of 2-Aryl-2,3-dihydro-4H-pyran-4-ones.

✍ Scribed by Rasheed Ahmad Khera; Rasheed Ahmad; Ihsan Ullah; Obaid-Ur-Rahman Abid; Olumide Fatunsin; Muhammad Sher; Alexander Villinger; Peter Langer

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 42
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201104139

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Cyclization vs. Elimination Reactions of

Cyclization vs. Elimination Reactions of 5-Aryl-5-hydroxy 1,3-Diones: One-Pot Synthesis of 2-Aryl-2,3-dihydro-4H-pyran-4-ones

✍ Rasheed Ahmad Khera; Rasheed Ahmad; Ihsan Ullah; Obaid-Ur-Rahman Abid; Olumide F 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 222 KB 👁 1 views

## Abstract 2‐Aryl‐2,3‐dihydro‐4__H__‐pyran‐4‐ones were prepared in one step by cyclocondensation of 1,3‐diketone dianions with aldehydes. The use of HCl (10%) for the aqueous workup proved to be very important to avoid elimination reactions of the 5‐aryl‐5‐hydroxy 1,3‐diones formed as intermediate

ChemInform Abstract: One-Pot Synthesis o

ChemInform Abstract: One-Pot Synthesis of 2-Aryl-4-methyl-3-nitro-2,3-dihydro-1,5-benzothiazepines.

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ChemInform Abstract: Synthesis of 5-Amin

ChemInform Abstract: Synthesis of 5-Amino-1-aryl-4- (4-aryl-1,3-thiazol-2-yl)-2,3-dihydro-1H-pyrrol-3-ones.

✍ Yu. M. Volovenko; T. A. Volovnenko; A. V. Tverdokhlebov; I. G. Ryabokon' 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 28 KB 👁 1 views

ChemInform Abstract: Reactions of 4-Acyl

ChemInform Abstract: Reactions of 4-Acyl-1-alkoxyaryl-5-aryl-3-hydroxy-2,5-dihydro-1H-pyrrol-2-ones with Nucleophilic Reagents.

✍ V. L. Gein; N. L. Fedorova; E. B. Levandovskaya; M. I. Vakhrin 📂 Article 📅 2011 🏛 John Wiley and Sons ⚖ 33 KB

Chemical Reactivity of 3-Aryl-5-methyl-1

Chemical Reactivity of 3-Aryl-5-methyl-1,3,4-oxadiazolin-2-ones Towards Nitrogen Nucleophiles. Part 1. One-Pot Ring Conversion of 3-Aryl-5-methyl-1,3,4-oxadiazolin-2-ones into 4-Amino-2-aryl-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-ones.

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## Abstract For Abstract see ChemInform Abstract in Full Text.

ChemInform Abstract: One-Pot Synthesis o

ChemInform Abstract: One-Pot Synthesis of 6-Aryl-2,3-dihydro-4H-pyran-4-ones by Cyclocondensation of 1,3-Diketone Dianions with Aldehydes.

✍ Rasheed Ahmad; Rasheed Ahmad Khera; Alexander Villinger; Peter Langer 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 21 KB 👁 1 views