Recent advances in three-component reactions of P(O)-H compounds

H-phosphonates, H-phosphinates and secondary phosphine oxides are versatile reagents for the construction of complex phosphoryl compounds. Their decade advances in three-component reactions were recorded in this article. Reactions with bicyclo[1.1.1]pentane, alkenes, alkynes, aldehydes, imines, S, Se, et al will be discussed. In this review, we systematically summarized the applications of these P(O)-H compounds in organic synthetic chemistry, and their mechanisms were also discussed.