* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate; In water; N,N-dimethyl-formamide; at 110℃; for 2h;Microwave irradiation; Inert atmosphere;
General procedure: Method B: In a20 mL microwave Biotage tube, a 1M Na2CO3 aqueous solution(5 mL) purged with argon were introduced into a mixture purged with argon of 4-iodo-1H-imidazole (1a) (0.194 g, 1.0 mmol), a boronicacid 2 (1.6 mmol) and Pd(PPh3)4 (0.80 g, 0.05 mmol) in DMF (15 mL). The mixture washeated under microwaveirradiation. When the reaction was complete, the mixture was cooled toroom temperature and concentrated under reduced pressure. The residue waspurified by flash chromatography on silica gel to provide compounds 3j and 3p-3u in yields ranging from 30 to 95%. Time and temperaturereactions were collected in Table 1.
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; N-benzyl-N,N,N-triethylammonium chloride; cesium fluoride; In water; toluene; at 120℃; for 1h;Microwave irradiation; Inert atmosphere;
General procedure: Method A: In a20 mL microwave Biotage tube, a mixture of 4-iodo-1H-imidazole(1a) (0.194 g, 1.0 mmol), a boronic acid 2(2.0 mmol), CsF (0.456 g,3.0 mmol), PdCl2(dppf)(0.041 g, 0.05 mmol) and BnEt3NCl(0.011 g, 0.05 mmol) in toluene(7 mL) and water (7 mL)was purged with argon andheated under microwaveirradiation. When the reaction was complete, the mixture was cooled toroom temperature and concentrated under reduced pressure. The residue waspurified by flash chromatography on silica gel to provide compounds 3a-3i and 3k-3o in yields ranging from 40 to 91%. Time and temperaturereactions were collected in Table 1.
Chemistry
Pharmaceutical Intermediates
Inhibitors/Agonists
Material Science
For Research Only
120K+ Compounds
Competitive Price
1-2 Day Shipping
