Arsenous chloride-free synthesis of cyclic tertiary organoarsines from arylarsine oxides and di-Grignard reagents
作者:Aaron M. Gregson、Steven M. Wales、Stephen J. Bailey、Paul A. Keller
DOI:10.1016/j.jorganchem.2015.03.006
日期:2015.6
sparked recent interest in new synthetic routes to tertiary arsines that avoid hazardous arsenous chloride reagents. However, safer methods for the synthesis of lesser explored arsine heterocycles, especially those containing As–C(sp3) bonds, remain lacking. We demonstrate for the first time that bench stable, less hazardous, arylarsine(III) oxides are effective substitutes for their corresponding chlorides
三芳基氨酸作为过渡金属催化的配体的重要性与日俱增,引起了人们对避免有害的氯化亚砷试剂的叔a基合成新途径的兴趣。但是,仍然缺乏更安全的方法来合成较少探索的砷化氢杂环化合物,尤其是那些含有As–C(sp 3)键的化合物。我们首次证明,用双格里雅试剂从一锅式构建环状叔有机ar氨酸时,稳定的,危害性较小的芳基芳烃(III)氧化物是其相应氯化物的有效替代品。已经以合理的收率制备了几种已知的和新颖的杂环,以适应二有机镁试剂和亲电试剂的变化,从而使该方法成为用于循环a组装的模块化方法。