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Chiral boron Lewis acid-catalyzed asymmetric synthesis of 4,5-dihydropyrrolo[1,2-a]quinoxalines

✍ Scribed by Li, Yuan; Su, Yu-Han; Dong, De-Jun; Wu, Zhao; Tian, Shi-Kai

Book ID
121296655
Publisher
The Royal Society of Chemistry
Year
2013
Tongue
English
Weight
359 KB
Volume
3
Category
Article
ISSN
2046-2069

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## Abstract The reaction of 1‐(2‐aminophenyl)pyrrole with aromatic or heteroaromatic aldehydes in ethanol and catalytic amounts of acetic acid leads to 4,5‐dihydropyrrolo[1,2‐__a__]quinoxalines in high yields. When aliphatic aldehydes were used under the same conditions, a slow oxidation to the cor