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Ph3P-mediated one-pot synthesis of functionalized 3,4-dihydro-2H-1,3-thiazines fromN,N′-dialkylthioureas and activated acetylenes in water

✍ Scribed by Issa Yavari; Manijeh Nematpour; Zinatossadat Hossaini

Book ID
106214411
Publisher
Springer Vienna
Year
2010
Tongue
English
Weight
212 KB
Volume
141
Category
Article
ISSN
0026-9247

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One-Pot Synthesis of Functionalized 3-Ar
One-Pot Synthesis of Functionalized 3-Aryl-1-phenyl-1H-pyrazoles from Hydrazonoyl Chlorides and Acetylenic Esters in the Presence of Ph3P
✍ Issa Yavari; Gholamhossein Khalili; Anvar Mirzaei 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 German ⚖ 159 KB

## Abstract The zwitterionic 1 : 1 intermediates generated by addition of Ph~3~P to acetylenic esters is trapped by 1‐[(aryl)chloromethylene]‐2‐phenylhydrazines (=__N__‐phenylarenecarbohydrazonoyl chlorides) to yield functionalized 3‐aryl‐1‐phenyl‐1__H__‐pyrazoles in good yields.