K. Troev
2018
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Abstract
In this chapter, methods for preparation of hypophosphorous acid, its salts, esters, and hypophosphite borane complexes are described. The characteristic reactions of P–H group-addition reactions, alkylation, cross-coupling and transfer hydrogenation—of hypophosphorous acid, its salts, esters, and borane complexes are included in this chapter. A possible reaction mechanisms of some of the above reactions are discussed. Synthesis of α-amino- H -phosphinic substrates—key synthons for the construction of phosphinic dipeptide derivatives is a part of this chapter. A novel approach to H -phosphonates from hypophosphorous acid, as an environment friendly and inexpensive reagent, using a transfer hydrogenation process is described.