Eren, Nimrod M. published the artcileSynthesis, Structure, and Solution Studies of Lithiated Allylic Phosphines and Phosphine Oxides, Safety of Allyldiphenylphosphine oxide, the publication is Organometallics (2020), 39(11), 2080-2090, database is CAplus.
This study reports a new series of 12 ¦Á-lithiated allylic phosphines and phosphine oxides. By incorporating Lewis base donors including di-Et ether (Et2O), THF (THF), N,N,N’,N’,-tetramethylethylenediamine (TMEDA), and N,N,N’,N’,N”,-pentamethyldiethylenetriamine (PMDETA), nine complexes were structurally characterized by single-crystal X-ray crystallog. This includes novel dilithiated allylic phosphine 4 [PhP{CHCHCH2Li(TMEDA)}2] and a rare hemisolvated lithiated phosphine oxide 6 [{Ph2P(O)CHC(Me)CH2Li}2(TMEDA)]. Interestingly, in the solid state, P(III) complexes take advantage of Li-¦Ð interactions to the newly formed delocalized system, in comparison to P(V) complexes where the oxophillic nature of the lithium atom dominates. All 12 complexes were fully characterized in the solution state by multinuclear NMR spectroscopy. DFT calculations on isomers of monomeric lithiated complex 3 [Ph2PCHC(Me)CH2Li(PMDETA)] described the low energy barrier between transition steps of the subtle delocalization of the allylic chain.
Organometallics published new progress about 4141-48-4. 4141-48-4 belongs to catalysis-chemistry, auxiliary class Aryl phosphine ligand,Mono-phosphine Ligands, name is Allyldiphenylphosphine oxide, and the molecular formula is C15H15OP, Safety of Allyldiphenylphosphine oxide.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia