𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Intermolecular and Intramolecular Diels−Alder Cycloadditions of 3-Ylidenepiperazine-2,5-diones and 5-Acyloxy-2(1 H )-pyrazinones †

✍ Scribed by Jin, Shangde; Wessig, Pablo; Liebscher, Jürgen

Book ID
127144012
Publisher
American Chemical Society
Year
2001
Tongue
English
Weight
208 KB
Volume
66
Category
Article
ISSN
0022-3263

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

[4+2] Cycloaddition of 2(1H)-pyrazinones
[4+2] Cycloaddition of 2(1H)-pyrazinones and 1,2,4-triazoline-3,5-diones
✍ Takehiko Nishio 📂 Article 📅 1998 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 273 KB

## Abstract The reaction of 2(1__H__)‐pyrazinones 1 and 1,2,4‐triazoline‐3,5‐diones 3 was investigated by comparing that of 1 with singlet oxygen. 2(1__H__)‐Pyrazinones 1 reacted in Diels‐Alder fashion with 1,2,4‐triazoline‐3,5‐diones 3 to afford [4+2]‐adducts 4–17 in high yields.