Three-Component Synthesis of Functionalized 1-Azabuta-1,3-dienes from Alkyl Isocyanides, Activated Acetylenes, and Pyridin-2(1 H )-one or Isoquinolin-1(2 H )-one
✍ Scribed by Mohtat, Bita; Djahaniani, Hoorieh; Khorrami, Roshanak; Mashayekhi, Samira; Yavari, Issa
- Book ID
- 120374681
- Publisher
- Taylor and Francis Group
- Year
- 2011
- Tongue
- English
- Weight
- 236 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0039-7911
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## Abstract The reactive 1 : 1 zwitterionic intermediate formed by the addition of isocyanides to dialkyl acetylenedicarboxylates was trapped with 4‐arylurazoles to produce the highly functionalized pyrazolo[1,2‐__a__][1,2,4]triazoles **5** in good yields (__Table__). The structures of the products
## Abstract The reaction of dialkyl acetylenedicarboxylates with arylidenemalononitriles in the presence of KSCN in MeCN led to a mixture of dialkyl (3__E__)‐4‐aryl‐3‐(arylideneamino)‐5,5‐dicyanocyclopenta‐1,3‐diene‐1,2‐dicarboxylates and dialkyl 4‐aryl‐5‐cyanothiophene‐2,3‐dicarboxylates. When the