𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Formation of Pyridazino[4,5-c]pyridazine Derivatives upon [4 + 2]Cycloaddition of 4-Phenyl-1,2,4-triazoline-3,5-dione to Cross-Conjugated Monoferrocenyltrienes.

✍ Scribed by Juan M. Martinez Mendoza; Eduardo A. Vazquez Lopez; Rafael Moreno Esparza; Marcos Flores Alamo; Elena I. Klimova

Publisher
John Wiley and Sons
Year
2006
Weight
15 KB
Volume
37
Category
Article
ISSN
0931-7597

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Formation of pyridazino[4,5-c]pyridazine
Formation of pyridazino[4,5-c]pyridazine derivatives upon [4+2]cycloaddition of 4-phenyl-1,2,4-triazoline-3,5-dione to cross-conjugated monoferrocenyltrienes
✍ Juan M. Martínezmendoza; Eduardo A. Vázquez López; Rafael Moreno Esparza; Marcos 📂 Article 📅 2006 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 178 KB

## Abstract magnified image Cross‐conjugated monoferrocenyltrienes react with 4‐phenyl‐1,2,4‐triazoline‐3,5‐dione to give mono‐ and bis‐[4+2]‐cycloaddition products. Nonsubstituted and 2,4‐disubstituted 3‐ferrocenylmethylidenepenta‐1,4‐dienes afford respective pyridazine and pyridazino[4,5‐__c__]p

Solvent Effects in [4+2] Cycloadditions
Solvent Effects in [4+2] Cycloadditions of Polyhalogenated Cyclopentadienes with 4-Phenyl-1,2,4-triazoline-3,5-dione
✍ Sauer, Jürgen ;Schuhbauer, Hans Markus 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 497 KB

## Abstract Relative rates of [4 + 2] cycloadditions of cyclopentadienes 1a–1e with 4‐phenyl‐1,2,4‐triazoline‐3,5‐dione (2) in 12 different solvents vary by factors of up to 19000, but the reactions show similar solvent effects. Rate constants __k__~2~ correlate well with solvent parameters __AN__

[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.