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ChemInform Abstract: Scandium and Copper Triflate-Catalyzed Acylaminoalkylation and Friedel- Crafts Alkylation Reactions.

✍ Scribed by M. EL GIHANI; H. HEANEY; K. F. SHUHAIBAR

Publisher
John Wiley and Sons
Year
2010
Weight
34 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

Scandium and Copper Triflate-Catalyzed Acylaminoalkylation and

Friedel-Crafts Alkylation Reactions. -The title reactions are carried out using scandium or copper triflate as Lewis acid catalyst. Copper is found to be the more efficient catalyst in most cases, whereas scandium triflate can be recycled. The Friedel-Crafts reaction of the chiral alcohol (V) with 1,2dimethylindole yields the compound (VII) with no diastereoselectivity. -(EL

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## Abstract A one‐pot synthesis of dihydroindenes from substituted benzenes and haloalkenes was developed. The reaction proceeded __via__ a copper(II) triflate [Cu(OTf)~2~]‐catalyzed tandem Friedel–Crafts alkylation/cyclization process with high efficiency under relatively mild conditions.