64563-75-3

Upstream product

• 101960-60-5 [(Z)-4-Methoxy-phenylimino]-phenyl-acetic acid 
• 122-52-1 triethyl phosphite 
• 762-04-9 Diethyl phosphonate 
• 1613-90-7 4-methoxy-N-[(E)-phenylmethylidene]aniline 
• 100-52-7 benzaldehyde 
• 104-94-9 4-methoxy-aniline 
• 762-04-9 phosphonic acid diethyl ester 
• 78-40-0 triethyl phosphate 
• 100-51-6 benzyl alcohol 
• 17377-95-6 benzyl(4-methoxyphenyl)amine 
• 6554-98-9 trans-4-Hydroxystilbene 
• 2101-87-3 p-methoxy-phenylazide 

Downstream Products

• 3277-27-8 diethyl benzoylphosphonate 

Relevant academic research and scientific papers

Montmorillonite K10 catalyzed nucleophilic addition reaction to aldimines in water

Montmorillonite K10 catalyzed Mannich-type reaction and hydrophosphonylation proceeded smoothly in water at room temperature to give β-amino esters and α-amino phosphonates, respectively, in good to high yields. Georg Thieme Verlag Stuttgart.

Niobium pentoxide, a recyclable heterogeneous solid surface catalyst for the synthesis of α-amino phosphonates

Abstract: Niobium pentoxide, a bifunctional solid surface catalyst, has been successfully employed to facilitate the three-component reaction between aldehydes, amines and triethyl phosphite at room temperature under solvent-free conditions to generate α-amino phosphonate in moderate to good yields. The catalyst can be recycled through simple filtration and reused to effect this transformation. Graphic abstract: [Figure not available: see fulltext.].

Magnetic ZnO?CuO?Iron ore nanocomposites as a green and highly efficient heterogeneous nanocatalyst for solventless synthesis of α-aminophosphonates

A green novel synthesis of ZnO?CuO?Iron ore nanocomposites as a novel and magnetic heterogeneous nanocatalyst is used for the one-pot synthesis of α-aminophosphonates under solventless conditions. This study benefits from the magnetic iron ore acting as a multi-mineral Lewis acid system, the green properties and the large surface area due to its nanostructure. Moreover, scanning electron microscope analysis confirmed that the nanocatalyst gave an excellent yield and good recyclability; which, even after the 10th cycle of the model reaction retained its potential with no significant loss of catalytic activity.

Iron-Catalyzed Nitrene Transfer Reaction of 4-Hydroxystilbenes with Aryl Azides: Synthesis of Imines via C=C Bond Cleavage

C=C bond breaking to access the C=N bond remains an underdeveloped area. A new protocol for C=C bond cleavage of alkenes under nonoxidative conditions to produce imines via an iron-catalyzed nitrene transfer reaction of 4-hydroxystilbenes with aryl azides is reported. The success of various sequential one-pot reactions reveals that the good compatibility of this method makes it very attractive for synthetic applications. On the basis of experimental observations, a plausible reaction mechanism is also proposed.

Radical Cation Salt-initiated Aerobic C?H Phosphorylation of N-Benzylanilines: Synthesis of α-Aminophosphonates

A radical cation salt-initiated phosphorylation of N-benzylanilines was realized through an aerobic oxidation of the sp3 C?H bond, providing a series of α-aminophosphonates in high yields. An investigation of the reaction scope revealed that this mild catalyst system is superior in good functional group tolerance and high reaction efficiency. The mechanistic study implied that the cleavage of the sp3 C?H bond was involved in the rate-determining step.

A novel straightforward synthesis of α-aminophosphonates: one-pot three-component condensation of alcohols, amines, and diethylphosphite in the presence of CuO@Fe3O4 nanoparticles as a catalyst

We report here a novel and straightforward synthesis method for the preparation of α-aminophosphonates in relatively good yield. The method involves the one-pot three-component condensation of alcohols, amines, and diethylphosphite in the presence of CuO@Fe3O4 nanoparticles as a recyclable catalyst. CuO@Fe3O4 nanoparticles were prepared and their structures were confirmed by the FT-IR, TGA, VSM, TEM and X-ray diffraction patterns analyses.

Supported sulfonic acid on magnetic nanoparticles used as a reusable catalyst for rapid synthesis of α-aminophosphonates

Sulfonic acid was anchored on the surface of silica-coated cobalt ferrite core to obtain a new magnetically separable catalyst. The resultant composite was characterized by various techniques, including FT-IR, X-ray diffraction, FESEM, energy-dispersive X-ray, TEM, TGA, and vibrating sample magnetometer. The immobilized sulfonic acid was shown to be an efficient heterogeneous catalyst for the synthesis of a-aminophosphonates under solvent-free conditions at room temperature. The catalyst is readily recovered by simple magnetic decantation and can be recycled 7 times with no significant loss of catalytic activity.

A Green Approach to the Synthesis of α-Amino Phosphonate in Water Medium: Carbene Insertion into the N-H Bond by Cu(I) Catalyst

Synthesis of amino phosphonates is more important owing to their significant applications in the biological systems. There are few methods already known in the literature to make these molecules; however, known methods have their own disadvantages. In this regard, synthesis of different kinds of amino phosphonates have been achieved via phosphonate substituted carbene insertion into the N-H bond of aniline catalyzed by readily available copper salt under mild reaction conditions in water. In order to find an efficient catalyst for carbene insertion reaction in neat water, a large number of transition metal catalysts were screened, and we found that the [Cu(CH3CN)4]ClO4 was the best catalyst under employed reaction conditions. Using this environmentally benign methodology (copper catalyzed reaction in water), a large number of biologically important amino phosphonates have been synthesized, isolated (37 examples), and characterized using standard analytical and spectroscopic techniques.

Highly efficient synthesis of α-aminophosphonates catalyzed by hafnium(IV) chloride

A highly efficient one-pot method for the synthesis of a variety of α-aminophosphonates via the one-pot three-component reaction of aldehyde, amine, and phosphite has been developed using only 2 mol % HfCl4 as the catalyst. The NMR evidence strongly indicated the catalytic roles of Hf(IV) on the activation of aldehyde, phosphite, and imine intermediate.

A Simple and Green Procedure for the One-Pot Synthesis of α-Aminophosphonates with Quaternary Ammonium Salts as Efficient and Recyclable Reaction Media

A simple and highly efficient approach has been developed for a multicomponent one-pot reaction of aldehydes or ketones with amines and diethyl or triethyl phosphite to give the corresponding α-aminophosphonates. In the presence of quaternary ammonium salts, which are environmental friendly, inexpensive, and recyclable, α-aminophosphonates were obtained in excellent yields at room temperature within short times.