Mass spectrometry of 1 phenyl-1, 2-dibromopropylphosphonic acid and its methyl ester
作者:Seymour Meyerson、Eugene S. Kuhn、Fausto Ramirez、Shrishailam S. Yemul、James F. Marecek
DOI:10.1016/s0040-4020(01)96880-2
日期:1984.1
pathway is followed in the ionization/excitation processes (“cationic reactions”) that follow from electron impact in mass spectrometry. The thermal and cationic reactions of the monomethyl and dimethyl esters of the phosphoric acids (R=H,R'= CH3 and R = R' = CH3, respectively, in -P(O)(OR)(OR')) are entirely analogous to those of the free dibasic acid.
已知在质子或非质子溶剂中,在受阻的情况下,赤型-1-苯基-1,2-二溴丙基膦酸可迅速分解成单体偏磷酸酯阴离子(PO 3),1-苯基-1-溴丙烯和溴离子。叔胺。本研究比较了该膦酸在溶液中和在气相中的行为。酸的气相热解主要涉及溴和磷酰基-P(O)(OR)(OR')(R = R'= H)的损失。在质谱法中,由于电子撞击而产生的电离/激发过程(“阳离子反应”)遵循相同类型的途径。磷酸的单甲酯和二甲酯的热和阳离子反应(R = H,R'= CH 3和R = R'= CH 3分别在-P(O)(OR)(OR'))中与游离二元酸完全相似。