Journal
RSC ADVANCES
Volume 12, Issue 10, Pages 6303-6313Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ra07208k
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Funding
- Region Centre Val de Loire (RTR Motivhealth)
- SFR neuroimagerie [SFR FED 4224]
- Labex program SYNORG [ANR-11-LABX-0029]
- Labex program IRON [ANR-11-LABX-0018-01]
- ANR [ANR-17-CE07-0030-01]
- MESR
- Ligue contre le Cancer du Grand Ouest (comite des Deux Sevres)
- Ligue contre le Cancer du Grand Ouest (comite du Finistere)
- Ligue contre le Cancer du Grand Ouest (comite de l'Ille et Vilaine)
- Ligue contre le Cancer du Grand Ouest (comite du Loir et Cher)
- Ligue contre le Cancer du Grand Ouest (comite de Loire Atlantique)
- Ligue contre le Cancer du Grand Ouest (comite du Loiret)
- Ligue contre le Cancer du Grand Ouest (comite de la Vienne)
- PHC Camgpus France Brancusi [38382XK]
- FEDER under project Valbiocosm [FEDERFSE 2017-EX003202]
- FEDER under project CHembio [FEDER-FSE 2014-2020-EX003677]
- FEDER under project Techsab [FEDER-FSE 2014-2020-EX011313]
- FEDER under project Mistic [FEDER-FSE 2014-2020-EX003242]
- Agence Nationale de la Recherche (ANR) [ANR-17-CE07-0030] Funding Source: Agence Nationale de la Recherche (ANR)
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The first access to 3,5-disubstituted imidazo[1,2-d][1,2,4]thiadiazole derivatives is reported. The method involves the synthesis of a key intermediate from 2-mercaptoimidazole and the regioselective electrophilic iodination in the C-5 position using the Suzuki-Miyaura reaction. Palladium-catalyzed cross-coupling reactions with various boronic acids were optimized to establish the scope and limitations of the method.
The first access to 3,5-disubstituted imidazo[1,2-d][1,2,4]thiadiazole derivatives is reported. The series were generated from 2-mercaptoimidazole, which afforded the key intermediate bearing two functional positions. The SNAr reactivity toward tosyl release at the C-3 position was investigated and a regioselective electrophilic iodination in C-5 position was performed to allow a novel C-C bond using Suzuki-Miyaura reaction. Palladium-catalyzed cross-coupling conditions were optimized. A representative library of various boronic acids was employed to establish the scope and limitations of the method. To complete this methodological study, the influence of the nature of the C-3 imidazo[1,2-d][1,2,4]thiadiazole substitutions on the arylation in C-5 was investigated.
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