39148-16-8Relevant academic research and scientific papers
Alpha-R alkoxy p-chlorobenzyl phosphonic acid monoester
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Paragraph 0017; 0029-0030, (2021/07/17)
The invention discloses alpha-R alkoxy p-chlorobenzyl phosphonic acid monoester. The structural formula of the alpha-R alkoxy p-chlorobenzyl phosphonic acid monoester is shown in the specification, wherein R1 is selected from-(C5-C8) alkyl, -(C3-C8) cycloalkyl or -(C2-C8) alkenyl; R2 is selected from alkyl of -(C1-C5) or cycloalkyl of -(C3-C6); and M is H or alkali metal ions or alkaline earth metal ions or organic ammonium cations. The alpha-R alkoxy p-chlorobenzyl phosphonic acid monoester is a brand-new intermediate alpha-R alkoxy p-chlorobenzyl phosphonic acid monoester used for preparing 1-(4-chlorphenyl)-2-cyclopropyl-1-acetone, the preparation method of the intermediate is provided, the purity of the alpha-R alkoxy p-chlorobenzyl phosphonic acid monoester prepared through the method can reach 98.9%, the yield can reach 94.7%, when the compound is used for preparing 1-(4-chlorphenyl)-2-cyclopropyl-1-acetone, the purity and the yield are greatly improved, and the quality of cyproconazole is further improved.
Metal complexes of 4,11-dimethyl-1,4,8,11-tetraazacyclotetradecane-1, 8bis(methylphosphonic acid) - Thermodynamic and formation/decomplexation kinetic studies
Svobodova, Ivona,Havlickova, Jana,Plutnar, Jan,Lubal, Premysl,Kotek, Jan,Hermann, Petr
experimental part, p. 3577 - 3592 (2009/12/03)
The macrocyclic ligand with two methylphosphonic acid pendant arms, 4,11-diniethyl-1,4,8,11-tetraazacyclotetradecane-l,8-bis(methylphosphonic acid) (1,8-H4Me2te2p, H4L3), was synthesized, by a new simple approac
