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1 article(s) from Klochkova, Anastasiia A

Synthesis of benzannelated sultams by intramolecular Pd-catalyzed arylation of tertiary sulfonamides

Valentin A. Rassadin,
Mirko Scholz,
Anastasiia A. Klochkova,
Armin de Meijere and
Victor V. Sokolov

Beilstein J. Org. Chem. 2017, 13, 1932–1939, doi:10.3762/bjoc.13.187

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Scheme 1: A previous and a new approach to arene-annelated sultams.

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Scheme 2: Pd-catalyzed cyclization of (2-iodophenyl)sulfonamides 3 and 5.

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Scheme 3: Preparation of 4-methoxybenzyl-protected methyl 2-(N-o-iodoarylsulfamoyl)acetates 8. Reagents and c...

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Scheme 4: Synthesis of arene-annelated sultams 10 by Pd-catalyzed intramolecular arylation of a C–H acidic me...

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Figure 1: Structure of methyl 5-chloro-1-(4-methoxybenzyl)-1,3-dihydrobenzo[c]isothiazole-3-carboxylate-2,2-d...

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Scheme 5: Palladium-catalyzed transformation of N-(2-iodophenyl)-N-(4-methoxybenzyl-benzylsulfonamide 12. Ar ...

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Scheme 6: Palladium-catalyzed intramolecular arylation to yield a benzannelated six-membered sultam 21. Ar = ...

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Scheme 7: An attempted and a successful removal of the PMB group from the sultam 10a.

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Figure 2: Structure of methyl 1-(4-methoxybenzyl)-3-(nitrooxy)-1,3-dihydrobenzo[c]isothiazole-3-carboxylate-2...

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Published 12 Sep 2017

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