Synthetic applications of N–N linked heterocycles. Part 11. Regiospecific synthesis of dialkyl pyridin-4-yl-, quinolin-4-yl-, and isoquinolin-1-yl-phosphonates
作者:Alan R. Katritzky、James G. Keay、Michael P. Sammes
DOI:10.1039/p19810000668
日期:——
1-yl)-pyridinium, -quinolinium, and -isoquinolinium salts with trialkyl phosphites in the presence of sodium iodide gives regiospecifically dihydro-intermediates, which may be decomposed in good yields to dialkylpyridin-4-yl-, quinolin-4-yl-, and isoquinolin-1-yl-phosphonates respectively. The reaction may also be carried out in one step without isolating the dihydro-intermediate.
[EN] PYRIDAZINOL COMPOUND, DERIVATIVE THEREOF, PREPARATION METHOD THEREFOR, HERBICIDAL COMPOSITION AND USE THEREOF<br/>[FR] COMPOSÉ DE PYRIDAZINOL, DÉRIVÉ DE CELUI-CI, SON PROCÉDÉ DE PRÉPARATION, COMPOSITION HERBICIDE ET SON UTILISATION<br/>[ZH] 哒嗪醇类化合物及其衍生物、制备方法、除草组合物和应用