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Influence of Protonation on Gattermann-Koch Formylation Rate of Alkylbenzene in CF3SO3H-SbF5

✍ Scribed by Tanaka, Mutsuo; Fujiwara, Masahiro; Ando, Hisanori

Book ID
127383144
Publisher
American Chemical Society
Year
1995
Tongue
English
Weight
552 KB
Volume
60
Category
Article
ISSN
0022-3263

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3 ) 3 . The reaction proceeds with high regioselectivity. Thus, methanesulfonylation of 1,2,4-trifluorobenzene (V) exclusively affords the 1-mesyl-2,4,5-trifluorobenzene (VI). In dihalobenzenes [cf. compounds (VII) and (Ia)], the para-position is predominantly substituted [cf. compound (VIII)]. Othe