Ar-BINMOL–Derived Salan–Cu(II) Complex–Catalyzed Silyl-Reformatsky Reaction of Aromatic Aldehydes

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• In the control experiment, we also found that NaOAc was a good catalyst in the silyl-Reformatsky reaction of benzaldehyde with α-trimethylsilylmethylacetate; however, the product is the mixture of methyl 3-phenyl-3-(trimethylsilyloxy)propanoate (S-d) and methyl 3-hydroxy-3-phenylpropanoate (6a). These results supported the theory that the acetic anion (OAc-) could accelerate the 1,2-addition of nucleophile to aldehyde.
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