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Intramolecular Photochemical Cross-Coupling Reactions of 3-Acyl-2-haloindoles and 2-Chloropyrrole-3-carbaldehydes with Substituted Benzenes

✍ Scribed by Shen-Ci Lu; Xi-Xia Zhang; Zong-Jun Shi; Yu-Wei Ren; Bing Li; Wei Zhang


Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
175 KB
Volume
351
Category
Article
ISSN
1615-4150

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✍ Bojilova, Anka ;Rodios, Nestor ;Nicolova, Rositsa ;Ivanov, Christo 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 587 KB

## Abstract 3‐Pivaloyl‐2__H__‐1‐benzopyran‐2‐one (6) reacts with acid anhydrides in the presence of triethylamine to give 4‐(2‐oxoalkyl)‐2‐oxochromans 7 and 3‐pivaloyl‐2‐oxochroman (8) in moderate yields. Also 3‐propionyl‐ and 3‐isobutyryl‐2__H__‐1‐benzopyran‐2‐ones (9) react with acid anhydrides u