Hypophosphorous acid and hypophosphite salts
Recent Literature
The nontoxic, stable, environmentally benign, and easily available NaH2PO2
promotes reductive amination with E factors around 1. The reaction demonstrated
a great compatibility with a wide range of functional groups.
F. Kliuev, A. Kuznetsov, O. I. Afanasyev, S. A. Runikhina, E. Kuchuk, E.
Podyacheva, A. A. Tsygenkov, D. Chusov, Org. Lett.,
2022, 24, 7717-7721.
The use of H3PO3/I2 enables a reductive
iodination of various aromatic aldehydes to produce benzyl iodides. The benzyl
iodides can be converted into diarylmethanes or cyclic compounds in good yields
via in situ Friedel-Crafts type reactions.
F. Lv, J. Xiao, J. Xiang, F. Guo, Z.-L. Tang, L.-B. Han, J. Org. Chem., 2021, 86,
3081-3088.
The aqueous stability of deuterated calcium/sodium hypophosphites as
nontoxic, cost-effective, and environmentally benign deuteration reagents
enables deuteration of a broad range alkyl and aryl iodides with ample isotopic
incorporation in aqueous (H2O) solution using
2,2′-azobis(2-methylpropionamidine) dihydrochloride as radical initiator.
Z. Song, J. Zeng, T. Li, X. Zhao, J. Fang, L. Meng, Q. Wan,
Org. Lett., 2020, 22, 1736-1741.