201302-52-5Relevant academic research and scientific papers
{[Bis(dimethylamino)boryl]methyl}dimethylphosphane as ligand in transition metal complexes
Braunschweig, Holger,Dirk, Regina,Ganter, Beate
, p. 257 - 266 (1997)
The new α,ω-[phosphanyl(organyl)]borane Me2PCH2B(NMe2)2 (8) was obtained in good yield by the reaction of ClB(NMe2)2 with LiCH2PMe2. Compound 8 forms the transition metal complexes [(CO)5Cr{Me2PCH 2B(NMe2)2}] (9), [(MeC5H4)Mn(CO)2{Me2PCH2B(NMe2)2}] (10), and [(CO)4Fe{Me2PCH2B(NMe2)2)] (11), which were isolated as highly volatile liquids in high yields. Complex 11 easily underwent exchange reactions of the Me2N substituents which led to derivatives with threefold coordinated boron such as [(CO)4Fe{Me2PCH2B(OMe)2}] (13), and [(CO)4Fe{Me2PCH2B(NMe2)Cl)] (14), or to a compound with tetrafold coordinated boron, [(CO)4Fe{Me2PCH2BCl2(NHMe2)}] (15). Li[(CO)4Fe(Me2PCH2BH3)] (16), cis,trans-[{(CO)4Fe(Me2PCH2BH2)}2] (17), and [(CO)4Fe{Me2PCH2BH2(2,4,6-Me3C5H2N)}] (18) were obtained from 13 by corresponding substitution of the MeO groups. The addition of HSiPh3 to the iron center was achieved by photolysis of 13, giving [(CO)3FeH(SiPh3){Me2PCH2B(OMe)2}] (19). [(CO)5Cr{Me2PCH2B(OMe)2}] (12), the chromium analogue of 13, was obtained from the reaction of [(CO)5Cr{Me2PCH2B(NMe2)2}] (9) with MeOH. The structure of compound 19 was determined by single crystal X-ray diffraction.
