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2001
substitution reactions
substitution reactions
O 0040
An Efficient Method for Aromatic Friedel–Crafts Alkylation, Acy— Aromatic
16 - 044 lation, Benzoylation, and Sulfonylation Reactions.
Friedel–Crafts reactions are studied using catalytic amounts of Cu- and
Sn(OTf)2 . For aromatic alkylation and acylation Cu(OTf)2 is very efficient.
However, both reactions do not proceed with electron-withdrawing substituents
on the aromatic rings. For electrophilic sulfonylation best results are obtained
with Sn(OTf)2 . — (SINGH, RAVI P.; KAMBLE, RAJESH M.; CHANDRA,
KUSUM L.; SARAVANAN, P.; SINGH, VINOD K.; Tetrahedron 57 (2001) 1,
241-247; Dep. Chem., Indian Inst. Technol., Kanpur 208 016, India; EN)
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