Various 2-benzylsulfanyl-1,3-oxazolines were synthesized and engaged in a copper-promoted palladium-catalyzed cross-coupling reaction with a range of organoboryl and organostannyl reagents to produce 2-aryl- or 2-hetaryl-substituted oxazolines. Protected and unprotected carbohydrate backbones were shown to be compatible with the reaction conditions. This approach opens a new versatile access to chiral oxazoline structures.
palladium - carbohydrates - cross-coupling - copper - sulfur