1036406-54-8Relevant articles and documents
Iron-doped single walled carbon nanotubes as an efficient and reusable heterogeneous catalyst for the synthesis of organophosphorus compounds under solvent-free conditions
Sharghi, Hashem,Ebrahimpourmoghaddam, Sakineh,Doroodmand, Mohammad Mahdi
, p. 4708 - 4724 (2013)
Iron-doped single walled carbon nanotubes (Fe/SWCNTs) is an efficient, eco-friendly, and reusable heterogeneous catalyst for the synthesis of diversely decorated α-aminophosphonates via multicomponent reaction of amines, carbonyl compounds, and phosphorus compounds under solvent-free conditions. This methodology illustrates a very simple procedure, with wide applicability, extending the scope to aliphatic and aromatic amines and carbonyl compounds. It also enabled the development of one-pot synthesis of β-phosphonomalonates during the reaction of carbonyl compounds, malononitrile and phosphorus compounds. Excellent results were obtained in each case affording the corresponding organophosphorus adducts in good yields.
TiO2 as a new and reusable catalyst for one-pot three-component syntheses of α-aminophosphonates in solvent-free conditions
Hosseini-Sarvari, Mona
, p. 5459 - 5466 (2008/09/21)
Commercially available titania (TiO2) is reported as an extremely efficient catalyst for the synthesis of α-aminophosphonates. A three-component reaction of an amine, an aldehyde or a ketone and a dialkyl phosphite (Kabachnik-Fields reaction) took place in one-pot, under solvent-free conditions to afford the corresponding α-aminophosphonates in high yields and short times. The TiO2 catalyzed α-aminophosphonate synthesis in the present study perhaps represents a true three-component reaction as no intermediate formation of either an imine or α-hydroxyphosphonate was observed that indicated the simultaneous involvement of the carbonyl compound, the amine and the phosphite in the transition state. Furthermore, the catalyst can be reused for several times without any significant loss of catalytic activity.
