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A Novel Heterocyclic Atom Exchange Reaction with Lawesson′s Reagent: A One-Pot Synthesis of Dithiomaltol.

✍ Scribed by Daniel Brayton; Faith E. Jacobsen; Seth M. Cohen; Patrick J. Farmer

Publisher
John Wiley and Sons
Year
2006
Weight
13 KB
Volume
37
Category
Article
ISSN
0931-7597

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## Abstract The diazonium salt of 2‐aminophenol **2** was coupled __in situ__ with malononitrile derivatives **3a‐d**, 2‐cyanomethylthiazolin‐4‐one **9**, 2‐cyanomethylbenzimidazole **11a**, and 2‐cyanomethylbenzothiazole **11b** to give 2‐amino[1,4,5]benzoxadiazepine derivatives **6a‐d, 10** and *