Abstract
The polyethylene glycol (PEG) moiety has become increasingly important in medicinal chemistry. Herein, we describe the PEG functionalization of amines via hydrogen borrowing reductive amination. This was accomplished using the [Ru(p-cymene)Cl2]2 catalyst and phosphorus-containing ligand dppf or DPE to yield a variety of PEGylated primary and secondary amine products. Furthermore, we illustrate the utility of this method with the synthesis of quetiapine (Seroquel) in 62% isolated yield.
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