The Insertion of Terminal Phosphinidene Complexes into the BH Bond of Amine and Phosphine Boranes
作者:Rongqiang Tian、François Mathey
DOI:10.1002/chem.201202277
日期:2012.9.3
Push–pull complexation: Transient terminal phosphinidene complexes [RPW(CO)5] insert at 110 °C into the BH bonds of LBH3 (L = Et3N, Ph3P; see scheme). The reaction is probably driven by an interaction between the nucleophilic boron and the electrophilic phosphorus.
Insertion of phosphinidene complexes into the P–H bond of secondary phosphine oxides: a new version of the phospha-Wittig synthesis of PC double bonds
Terminalphosphinidenecomplexes [RP-W(CO)5], as generated at 60 °C in the presence of copper chloride from the appropriate 7-phosphanorbornadiene complexes, react with secondary phosphine oxides Ar2P(O)H to give the insertion products into the P–H bonds. After metalation with NaH, these products react with aldehydes to give the corresponding phosphaalkenes which are trapped by dimethylbutadiene.
Splitting the Phosphorus Bridge of 7-Phosphanorbornadiene Complexes by Fluoride Ion
作者:Carine Compain、François Mathey
DOI:10.1002/zaac.200500427
日期:2006.2
The reaction of fluorideion with 7-phosphanorbornadiene P–W(CO)5 complexes yields fluorophosphido complexes which, in turn, can attack a second molecule of 7-phosphanorbornadiene to give a fluorobiphosphine complex. The corresponding anion displays a huge P–P coupling. The structure of the anionic chromium analogue has been investigated by DFT calculations. The P–P bond is relatively short at 2.20
氟离子与 7-膦降冰片二烯 P – W (CO) 5 配合物反应生成氟磷复合物,进而可以攻击第二个 7-膦降冰片二烯分子,生成氟双膦配合物。相应的阴离子显示出巨大的 P-P 耦合。已经通过 DFT 计算研究了阴离子铬类似物的结构。P-P 键相对较短,为 2.20 A,并显示出巨大的极性,表明这是一种有趣的化学反应。当 7-磷酸降冰片二烯 P-取代基是 2-氯乙基时,氟离子的攻击之后是环化和还原性二聚反应,导致第一个已知的双膦配合物。
Serendipitous Discovery of a Phosphirene−Phosphindole Rearrangement
作者:Duanghathai Panichakul、François Mathey
DOI:10.1021/om100990r
日期:2011.1.24
The reaction of strong Lewis acids with 2-amino-3-phenylphosphirene pentacarbonyltungsten complexes leads to the corresponding 2-aminophosphindoles through the unexpected formation of a bond between phosphorus and one of the ortho carbons of the phenyl ring.