is a key intermediate in the synthesis of phosphinic acid salts, a new class of halogen-free flame retardants. This paper describes a novel and simple synthesis of this synthon: By alkylation of elemental yellow phosphorus with methyl chloride under phase-transfer conditions, methylphosphonous acid alkali salt is formed as the main product. Most of the by-products were identified. The mechanism of the
甲基
亚膦酸是合成
次膦酸盐(一类新型无卤阻燃剂)的关键中间体。本文描述了该合成子的一种新颖且简单的合成方法:通过在相转移条件下用
氯甲烷将元素黄
磷烷基化,形成甲基
亚膦酸碱盐作为主要产物。大多数副产品都被鉴定出来。讨论了反应机理。