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SYNTHESIS OF PIPECOLIC ACID DERIVATIVES VIA AZA–DIELS–ALDER REACTIONS OF THIO-SUBSTITUTED 1,3-BUTADIENES WITH IMINIUM SALTS

✍ Scribed by Chou, Shang-Shing P.; Hung, Chia-Cheng

Book ID
120460196
Publisher
Taylor and Francis Group
Year
2002
Tongue
English
Weight
176 KB
Volume
32
Category
Article
ISSN
0039-7911

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Aza-Diels–Alder reactions and synthetic
Aza-Diels–Alder reactions and synthetic applications of thio-substituted 1,3-dienes with arylsulfonyl isocyanates
✍ Shang-Shing P. Chou; Chia-Cheng Hung 📂 Article 📅 2000 🏛 Elsevier Science 🌐 French ⚖ 62 KB

The first aza-Diels-Alder reactions of arylsulfonyl isocyanates with thio-substituted 1,3-dienes via the 3-sulfolene precursors 1 gave the cyclized products 3 with complete control of regio-and chemoselectivity. The cyclized products 3a and 4 underwent further interesting reactions with nucleophiles