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Synthesis of fused pyridopyrrolidine dione derivatives using hetero Diels–Alder reactions

✍ Scribed by Helen J Mason; Ximao Wu; Rebecca Schmitt; John E Macor; Guixue Yu

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

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✦ Synopsis

Hetero Diels-Alder reactions of heteroaromatic amidines and maleimide afforded novel fused pyridopyrrolidine dione scaffolds in moderate to good yields under mild conditions.

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Inter- and intramolecular hetero Diels-Alder reactions, 28. Synthesis of (±)-secologanin agluconeO-ethyl ether and derivatives by tandem Knoevenagel hetero Diels-Alder reaction
✍ Tietze, Lutz F. ;Meier, Heinrich ;Nutt, Heinrich 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 875 KB

## Abstract The tandem Knoevenagel hetero Diels‐Alder reaction of 4,4,4‐trichloro‐3‐oxobutanal (4), the malondialdehyde derivative 11a, and the enol ether 13 was followed by separation of the diastereomers and treatment with DBU in methanol. Thermolysis in xylene then gave the secologanin derivativ