628692-43-3

Upstream product

• 914365-07-4 fac-[Mn(OClO₃)(CO)3(bis(dimethylphosphino)methane)] 
• 1197040-29-1 phenyl isocyanate 

Downstream Products

• 628692-46-6 fac-[Mn(CNPh)(CO)3(bis(dimethylphosphino)methanide)] 
• 628692-47-7 [Mn(CO)3I((CH₃)2PC(CNC₆H₅)P(CH₃)2)] 

Relevant academic research and scientific papers

Base induced P-C bond cleavage in a coordinated bis(dimethylphosphino)methane ligand

Treatment of fac-[Mn(CNR)(CO)3((PMe2) 2CH2)]ClO4 (1a R = Ph, 1b R = tBu) with KOH produced the cleavage of one of the P-C bonds of the coordinated dmpm ligand, resulting in the formation of phosphine-phosphinite complexes fac-[Mn(PMe2O)(CNR)(CO)3(PMe3)] (2a,b). Alkoxides such as NaOMe and NaOEt promoted similar processes in 1a,b, yielding fac-[Mn(CNR)(CO)3(PMe3)(PMe2OR′)]ClO 4 (3a R = tBu, R′ = Me; 3b R = Ph, R′ = Me; 4a R = tBu, R′ = Et; 4b R = Ph, R′ = Et) derivatives. The phosphinite ligand in 2a,b can be sequentially protonated by addition of 0. 5 and 1 equivalent of HBF4 leading to fac-[(Mn(CNR)(CO) 3(PMe3)(PMe2O))2H]BF4 (6a,b) and fac-[Mn(CNR)(CO)3(PMe3)(PMe 2OH)]BF4 (5a,b), respectively. The Royal Society of Chemistry 2006.