99405-05-7

Upstream product

• 24856-58-4 1,1-dimethoxy-1-(4-bromophenyl)methane 
• 762-04-9 phosphonic acid diethyl ester 
• 29800-93-9 diethyl phosphite 
• 99405-03-5 1-iodo-4-(1,1-dimethoxymethyl)benzene 

Downstream Products

• 99405-07-9 C₁₈H₂₃N₂O₅PS 
• 99405-08-0 C₁₈H₂₃N₂O₅PS 
• 99404-99-6 [4-(2,2-Dimethyl-3-methylene-cyclopropyl)-phenyl]-phosphonic acid diethyl ester 
• 99405-11-5 [3-(2,2-Dimethyl-3-methylene-cyclopropyl)-phenyl]-phosphonic acid diethyl ester 
• 99405-10-4 (3-Diazomethyl-phenyl)-phosphonic acid diethyl ester 
• 99405-09-1 [4-(diethoxyphosphoryl)phenyl]diazomethane 
• 56701-47-4 1-(1-Methylethylidene)-2-phenylcyclopropane 
• 72436-45-4 (4-formylphenyl)phosphonic acid diethyl ester 

Relevant academic research and scientific papers

Bifunctional porphyrin-based nano-metal-organic frameworks: Catalytic and chemosensing studies

The use of 5,10,15,20-tetrakis(p-phenylphosphonic acid)porphyrin (H10TPPA) as a linker in the preparation of porphyrin-based metal-organic frameworks (Por-MOFs) through coordination to lanthanides cations is reported. The resulting unprecedented materials, formulated as [M(H9TPPA)(H2O)x]Cl2·yH2O [x + y = 7; M3+ = La3+ (1), Yb3+ (2), and Y3+ (3)], prepared using hydrothermal synthesis, were extensively characterized in the solid-state, for both their structure and thermal robustness, using a myriad of solid-state advanced techniques. Materials were evaluated as heterogeneous catalysts in the oxidation of thioanisole by H2O2 and as chemosensors for detection of nitroaromatic compounds (NACs). Nano-Por-MOFs 1-3 proved to be effective as heterogeneous catalysts in the sulfoxidation of thioanisole, with Por-MOF 1 exhibiting the best catalytic performance with a conversion of thioanisole of 89% in the first cycle and with a high selectivity for the sulfoxide derivative (90%). The catalyst maintained its activity roughly constant in three consecutive runs. Por-MOFs 1-3 can be employed as chemosensors because of a measured fluorescence quenching up to 70% for nitrobenzene, 1,4-dinitrobenzene, 4-nitrophenol, and phenol, with 2,4,6-trinitrophenol exhibiting a peculiar fluorescence profile.

THE EFFECT OF THE DIETHYLPHOSPHONATE GROUP ON FREE RADICAL STABILITIES

The diethylphosphonate substituent is free radical stabilizing by a conjugation mechanism as judged by its effect on the rate of the methylenecyclopropane rearrangement.