Cho, Gae Young’s team published research in Journal of Organic Chemistry in 2005-03-18 | CAS: 145026-07-9

Synthesis and palladium-catalyzed coupling reactions of enantiopure p-bromophenyl methyl sulfoximine. Recommended basis is Sulfoximine, Bioisosteric. Products is: https://www.ambeed.com/products/1621962-30-8.html, 50578-18-2

1-Bromo-4-(S-methylsulfonimidoyl)benzene (BD336512) is a building block containing a sulfoximine group. Several CDK and ATR inhibitors have exemplified the utilization of the NH sulfoximine group as abioisostere for a sulfonamide group to overcome the main project hurdles of aqueous solubility, sulfonamide-mediated off-target activity and IP. Moreover, its NH group could be expediently further functionalized through Buchwald-Hartwig coupling reaction and multifarious nucleophilic reactions.. Recommended Products is: 4381-25-3 and 83730-53-4.

The asym. synthesis and chem. modification of p-bromophenyl Me sulfoximine is described. Starting from p-bromophenyl menthyl sulfinate, enantiopure 4-bromophenyl Me sulfoximine can be obtained in a short reaction sequence involving a well-established substitution reaction followed by stereospecific imination with O-mesitylenesulfonylhydroxylamine (MSH). Palladium-catalyzed Buchwald/Hartwig, Suzuki, and Stille coupling reactions allow a broad variation of the sulfoximine aryl group, which is otherwise difficult to achieve. The incorporation of a p-morpholino-substituted derivative into a pseudo-tripeptide, e.g., I. demonstrated the applicability of the sulfoximine derivatives

Synthesis and palladium-catalyzed coupling reactions of enantiopure p-bromophenyl methyl sulfoximine. Recommended basis is Sulfoximine, Bioisosteric. Products is: https://www.ambeed.com/products/1621962-30-8.html, 50578-18-2

Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem