نتایج جستجو برای: α aminophosphonates
تعداد نتایج: 165016 فیلتر نتایج به سال:
A simple, efficient, and general method has been developed for the synthesis of various α-aminophosphonate derivatives 4a-4l by treatment of substituted benzaldehydes and aniline with bis(2-methoxyethyl)or bis(2-ethoxyethyl) phosphite under microwave irradiation without solvents and catalysts. The products were characterized by elemental analysis, IR, H-NMR, Cand P-NMR spectra. The X-ray crysta...
Diphenylphosphinic acid was used as an efficient and simple catalyst for the synthesis of α-aminophosphonates by multicomponent Kabachnik-Fields reaction in one pot aromatic aldehyde, aniline diethylphosphite. Three physicochemical factors including amount, time medium temperature were optimized using a full factorial experiment design (FFD). Additionally, quadratic polynomial regression model ...
The aim of this work was to synthesize selected thiophene-derived aminophosphonic systems and evaluate the phytotoxicity of newly obtained products according to the OECD 208 Guideline. Seven new thiophene-derived N-substituted dimethyl aminomethylphosphonic acid esters 2a-h were synthesized by the addition of an appropriate phosphite to azomethine bond of starting Schiff bases 1a-h, and NMR spe...
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