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- W3163060147 abstract "Abstract This method involves the direct asymmetric aldol reaction of (−)‐menthyl isothiocyanatoacetate 5 with a variety of substituted aromatic aldehydes, which offers a convenient method for the synthesis of intermediate containing biologically relevant α‐amino β‐hydroxyl groups in oxazolidine ring. In this methodology, the products show remarkable diastereoselectivity using Sc(OTf) 3 as a catalyst and easily accessible (−)‐menthol as a chiral auxiliary. This approach includes some important aspects such as mild reaction conditions, high yields, and excellent diastereoselectivity with a number of substituted aromatic aldehydes. The optimization and effect of different catalysts were studied at different reaction conditions and it is found that Sc(OTf) 3 shows excellent diastereoselectivity at −45°C." @default.
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- W3163060147 date "2021-05-19" @default.
- W3163060147 modified "2023-10-01" @default.
- W3163060147 title "Catalytic Sc( OTf ) 3 mediated direct asymmetric aldol reaction of (−)‐menthyl isothiocyanatoacetate with aldehydes by using (−)‐menthol as chiral auxiliary" @default.
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- W3163060147 doi "https://doi.org/10.1002/jhet.4286" @default.
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