Synthesis and photochemical properties of trans-2-(2-aryl- or heteroarylvinyl)-4,5-dichloropyridazin-3(2H)-ones
✍ Scribed by Heung-Seop Yim; Mi-Ra Kim; Gi-Hyeon Sung; Hyun-A Chung; Jin-Kook Lee; Sang-Gyeong Lee; Yong-Jin Yoon
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2008
- Tongue
- English
- Weight
- 521 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0022-152X
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✦ Synopsis
Abstract
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trans‐2‐(2‐Aryl‐ or heteroarylvinyl)‐4,5‐dichloropyridazin‐3(2__H__)‐ones 3 were synthesized from 4,5‐dichloropyridazin‐3(2__H__)‐one via 2 step. The photochemical behavior of 3 in THF, methylene chloride, acetonitrile and methanol is dependent on the kind of aryl or heterocyclic ring and the solvent polarity
📜 SIMILAR VOLUMES
## Abstract The direct sulfonylation of 4,5‐dichloropyridazin‐3‐ones with some benzenesulfonyl chlorides in the presence of base in tetrahydrofuran gave only the corresponding __N__‐sulfonylated product. The reaction of 2‐benzenesulfonyl‐4,5‐dichloropyridazin‐3‐ones with some aliphatic amines under