Kliuev F, Kuznetsov A, Afanasyev OI, Runikhina SA, Kuchuk E, Podyacheva E, Tsygankov AA, Chusov D. Sodium Hypophosphite as a Bulk and Environmentally Friendly Reducing Agent in the Reductive Amination.
Org Lett 2022;
24:7717-7721. [PMID:
36240121 DOI:
10.1021/acs.orglett.2c02807]
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Abstract
NaH2PO2 was found to promote reductive amination. Being nontoxic, stable, environmentally benign, and available in bulk amounts, this reducing agent showed a powerful potential to compete with classical reductants applied in the target process. An E factor of 1 was achieved for the substrate scope. Different carbonyl compounds reacted with amines under the developed conditions. The reaction demonstrated a great compatibility with a wide range of functional groups. Reaction conditions were scaled up to 200-fold.
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