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Synthesis and characterization of bis(diphenylphosphinomethyl)amino ligands and their Ni(II), Pd(II) complexes: Application to hydrogenation of styrene

“…The peaks for P-CH 2 -N protons of ligands and their Ni(II) and Pd(II) complexes were observed around 3.42-3.62 ppm, which are in agreement with the values reported in literature [9,10]. The twobond phosphorus-hydrogen coupling constant values 2 J (HP) occur in the range of 2.12-3.35 Hz and are in agreement with the reported values [11][12][13][14]. As expected, the proton signals for N-C-CH 3 appeared around 1.25 ppm.…”

Flexible interactions of the rare-earth elements Y, La, and Lu with phosphorus in metallacyclohexane rings

“…57,58 Non-cyclic bis(aminomethyl)phosphines have been sparsely reported, having been characterized as intermediates en route to substituted 1,5-diaza-3,7diphosphacyclooctanes or 1,3-diaza-5phosphacyclohexanes. [59][60][61] Precise control of the stoichiometric ratio between RPH 2 , (CH 2 O) n , and aniline minimized the formation of undesired macrocycles and generated bis(aminomethyl)phosphine. For the synthesis of Ar BiAMP tBu , tert butylphosphine ( tBu PH 2 ), paraformaldehyde, and 3,5-dimethyl aniline were used in a 1 : 2 : 2 ratio (Fig.…”

Phospha-Mannich reactions of RPH2, R2PH, and R3P

“…Entry R R' Yield, % d P , ppm Me 73 [16] -68.3 (C 6 D 6 ) 63 [17,18] -60 (C 6 H 6 ) 43 [17,18] -60 (C 6 H 6 ) 40 [18] -60 (C 6 H 6 ) 42 [17,18] -60 (C 6 H 6 ) 65 [19] -56.1 (CD 3 OD) ~ 75 [20] -59.8 (MeOH), -60.4 (H 2 O) ~ 75 [20] -59.8 (MeOH), -60.4 (H 2 O) 62, [21] 67 [19] -55.4 (MeOH), -60.1 (CD 3 OD), -61.0 (H 2 O) 84 [21] -55.5 (MeOH), -62.1 (H 2 O) 40 [22] -61.5 (C 6 H 6 ) 38 [23,24] -50.0 (CD 3 OD), -55 (basic D 2 O) 76 [25] -66.3 (D 2 O) 74 [25] -75.6 (basic D 2 O) 73 [25] -76.2 (basic D 2 O) 16 77 [25] -74.2 (basic D 2 O) 17 68 [25] -69.0 (basic D 2 O) 18 84 [25] -70.0 (basic D 2 O) 19 40 [26] -39.9 (-) 20 72 [21] -57.7 (MeOH), -66.0 (H 2 O) 21 63 [21] -54.4 (MeOH), -66.1 (H 2 O) 22 46 [21] -69.7 (MeOH), -77.1 (H 2 O) 23 54 [21] -68.7 (MeOH), -77.1 (H 2 O) 24 Me 73 [27] -47.6 (CDCl 3 )…”

“…Entry R R' Yield, % d P , ppm 13 48 [22] -26.6 (DMF) 14 93 [5] -27.2 (CD 2 Cl 2 )** 15 93 [5] -27.9 (CD 2 Cl 2 )** 16 72 [23,24] Table S8. Cyclo-P,(NH)2-acetals, obtained by hydrophosphination of azines with primary phosphines.…”