Monophosphines and bisphosphines bearing anionic groups derived from the 7,8-dicarba-nido-undecaborate unit, such as [7-PR2-8-Me-7,8-C2B9H10]− and [7,8-(PR2)2-7,8-C2B9H10]− (R = phenyl, ethyl, isopropyl or ethoxy), were synthesized from closo-carborane precursors 1-PR2-2-Me-1,2-C2B10H10 and 1,2-(PR2)2-1,2-C2B10H10, respectively. In general, the CcP bond in the closo species is very susceptible degradation
带有衍生自7,8-二
氨基甲酰基-未脱键单元的阴离子基团的单膦和
双膦,例如[7-PR 2 -8-Me-7,8-C 2 B 9 H 10 ] -和[7,8- (PR 2)2 -7,8--C 2乙9 ħ 10 ] -(R =苯基,乙基,异丙基或乙氧基),从合成的闭合碳-carborane前体1-PR 2 -2-ME-1,2- C 2 B 10 H 10和1,2-(PR 2)2 -1,2-C 2 B 10H 10。通常,将C Ç在P键闭合碳物种是非常敏感的降解反应,产生Ç Ç P裂解和产生的[7,8-C 2乙9 ħ 10 ] 2 -阴离子。保留了良好的C降解的条件Ç P发现是
甲苯与1:50碳
硼烷对pipeeridine比和
乙醇的碳
硼烷1:10至
哌啶比率。所述芳基膦保持Ç Ç P键最好与产生最高的产率。
亚磷酸盐还保留了C cP键,但
磷变成正离子并产生两性离子物质。烷基膦是中间的,取决于-PR