作者:Steven R Alley、William Henderson
DOI:10.1016/s0022-328x(01)00908-1
日期:2001.12
acids FcCH2CH2E(O)(OH)2 [4, E=P; 10, E=As; Fc=Fe(η5-C5H5)(η5-C5H4)] have been synthesized by the reaction of FcCH2CH2Br with either P(OEt)3 followed by hydrolysis, or with sodium arsenite followed by acidification. Reaction of FcCH2OH with (EtO)2P(O)Na gave FcP(O)(OEt)(OH), which was converted to FcCH2P(O)(OH)2 (3) by silyl ester hydrolysis using Me3SiBr–Et3N followed by aqueous work-up. Similarly, the
二茂铁衍生的酸FcCH 2 CH 2 E(O)(OH)2 [ 4,E = P; 10,E = As;FC =铁(η 5 -C 5 H ^ 5)(η 5 -C 5 H ^ 4)]通过FCCH的反应已被合成2 CH 2溴与任一P(OET)3,随后通过水解,或与亚砷酸钠,随后通过酸化。FcCH 2 OH与(EtO)2 P(O)Na的反应生成FcP(O)(OEt)(OH),将其转化为FcCH 2 P(O)(OH)2(3),使用Me 3 SiBr–Et 3 N进行甲硅烷基酯水解,然后进行水后处理。类似地,公知的膦酸FCP(O)(OH)2和新的衍生物1,1'--Fc的'[P(O)(OH)2 ] 2 [的Fc'=铁(η 5 -C 5 H ^ 4)2 ]和1,1'-Fc'[CH 2 P(O)(OH)2 ] 2(7)已通过其相应的酯合成。在3和7上进行了X射线晶体结构测定,并讨论了氢键网络。电喷雾质谱已用于各种酸的表征。膦酸可提供预期的[MH]