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Facile synthesis of pyrazino[2,3-e][1,4]diazepine derivatives via the intramolecular aza-Wittig reaction

✍ Scribed by Tomohiro Okawa; Shoji Eguchi


Publisher
Elsevier Science
Year
1996
Tongue
French
Weight
215 KB
Volume
37
Category
Article
ISSN
0040-4039

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## 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 condition