𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Intramolecular Diels–Alder reactions of N-alkenyl-2(1H)-pyrazinones: generation of a novel type of cis-1,7-naphthyridine

✍ Scribed by Frederik J.R Rombouts; Wim De Borggraeve; Suzanne M Toppet; Frans Compernolle; Georges J Hoornaert

Publisher
Elsevier Science
Year
2001
Tongue
French
Weight
71 KB
Volume
42
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Stereoselective intramolecular Diels–Ald
Stereoselective intramolecular Diels–Alder reactions of 3-alkenyl(oxy)-2(1H)-pyrazinones
✍ Wim M. De Borggraeve; Frederik J.R. Rombouts; Bie M.P. Verbist; Erik V. Van der 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 78 KB

Dichloropyrazinones are reacted with alkenolates or a Grignard reagent in order to tether a dienophilic side-chain at the 3-position. The compounds smoothly undergo intramolecular Diels-Alder reaction forming tricyclic ring systems. The reactions proceed completely stereoselective yielding only endo

Bismuth(III) chloride-catalyzed intramol
Bismuth(III) chloride-catalyzed intramolecular hetero-Diels–Alder reactions: a novel synthesis of hexahydrodibenzo[b,h][1,6]naphthyridines
✍ Gowravaram Sabitha; E Venkata Reddy; Ch Maruthi; J.S Yadav 📂 Article 📅 2002 🏛 Elsevier Science 🌐 French ⚖ 75 KB

BiCl 3 efficiently catalyzed the intramolecular hetero-Diels-Alder reactions of aldimines generated in situ from aromatic amines and the N-allyl derivative of o-aminobenzaldehyde in refluxing acetonitrile to afford a novel class of hexahydrodibenzo [b,h][1,6]naphthyridine derivatives. The products a

Intramolecular diels-alder reactions of
Intramolecular diels-alder reactions of 2-alkenyl-1,2-dihydropyridines. An approach to the synthesis of the cis-decahydroquinoline ring system.
✍ Daniel L. Comins; Abdul H. Abdullah; Roy K. Smith 📂 Article 📅 1983 🏛 Elsevier Science 🌐 French ⚖ 181 KB

In refluxing decalin P-alkenyl-1-alkoxycarbonyl-1,2\_dihydropyridines undergo an intramolecular Diels-Alder reaction to provide novel polycyclic compounds. The cis-decahydroquinoline ring system can be prepared from the appropriate Diels-Alder product utilizing a ring-opening reverse Mannich reactio