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Reversal of Chemoselectivity in Diels−Alder Reaction with α,β-Unsaturated Aldehydes and Ketones Catalyzed by Brønsted Acid or Lewis Acid

✍ Scribed by Nakashima, Daisuke; Yamamoto, Hisashi

Book ID
126714143
Publisher
American Chemical Society
Year
2005
Tongue
English
Weight
107 KB
Volume
7
Category
Article
ISSN
1523-7060

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✍ Takahiko Akiyama; Jun Takaya; Hirotaka Kagoshima 📂 Article 📅 1999 🏛 Elsevier Science 🌐 French ⚖ 197 KB

Three-component aza Diels-Alder reaction, starting from aldehyde, aniline, and Danishefsky's diene, took place smoothly under the influence of HBF4 in aqueous media to afford dihydro-4-pyridone derivatives in high yields.