Preparation of dichloro(2,4,6-tribromophenoxy)(1,2-diphenoxy)phosphorane and its nonoxidative chlorination reactions with alkyl and aryl phosphonates
作者:Houston Byrd、Prakash C Bharara、Tyler A Sullens、Jeremiah D Harden、Gary M Gray
DOI:10.1016/s0020-1693(02)01045-9
日期:2002.10
reactions are also quantitative. The (TBPO)(DP)PCl2 has major advantages over other nonoxidative chlorinating agents. The compound can be prepared in quantitative yield from stoichiometric amounts of the starting materials, the synthesis of the (TBPO)(DP)PCl2 and the subsequent nonoxidative chlorination reaction can be carried out in one pot, and the byproduct of the reaction does not contain active
四氯(2,4,6-三溴苯氧基)磷烷(TBPO)PCl 4与邻邻苯二酚的反应生成二氯(2,4,6-三溴苯氧基)(1,2-二苯氧基)磷烷(TBPO)(DP PCl 2。定量31 P [ 1 H] NMR光谱研究表明,该化合物将仲膦酸酯定量转化为亚氯膦酸酯。氯亚磷酸酯的特征在于它们与四羰基降冰片二烯钼(0),Mo(CO)4(NBD)反应形成顺式-Mo(CO)4(P(OR)2 Cl)2。这些反应也是定量的。(TBPO)(DP)PCl 2与其他非氧化性氯化剂相比,具有重大优势。该化合物可由化学计量的起始原料以定量收率制备,(TBPO)(DP)PCl 2的合成和随后的非氧化氯化反应可在一个反应釜中进行,而该反应的副产物不会含有活性氯化物。