Synthesis and reactivity of Ru(II) complexes containing the phosphino-amine Ph2PCH2CH2NMe2

First‐trimester fetal nasal bone audit: evaluation of a novel method of image assessment

“…The substitution of the NH 2 groups in complex 1 with NMe 2 groups14 led to a complete shutdown of the catalytic activity. This effect was also reported for the hydrogenation of ketones5a and strengthens the hypothesis of an NH‐assisted mechanism.…”

Functional phosphines XV. Ruthenium complexes containing C5H8(PR2)2 and ligands (R=Me, Ph, OPh; R′=H, Me): synthesis and application to homogeneous CO hydrogenation and transfer hydrogenation

“…In order to circumvent such difficulties ligands that lack hydrogen atoms a to the amino group were used for mechanistic studies, e.g., H 2 NCMe 2 CMe 2 NH 2 [17c,17d] and Ph 2 PCH 2 -CMe 2 NH 2 [1d]. A dichloro ruthenium complex of the latter, [RuCl 2 (Ph 2 PCH 2 CMe 2 NH 2 ) 2 ] (10), was obtained by reacting RuCl 3 AE 3H 2 O with two equivalents of the aminophosphine in THF in the presence of zinc, similar to the preparation of the N,N-dimethyl isomer [RuCl 2 (Ph 2 PCH 2 CH 2 NMe 2 ) 2 ] [24]; Scheme 3.…”

Ruthenium Catalyzed Homocoupling of Terminal Alkynes

“…The deuterated solvents were purchased from Aldrich and dried over 4 A Ê molecular sieves. RuTp(PPh 3 ) 2 Cl (1) [19], RuTp(PPh 3 )(=C=CHPh)Cl (2) [3], RuTp(PPh 3 )(py)Cl (3) [3], RuTp(PPh 3 )(PMe 3 )Cl (4) [20], RuTp(PPh 3 )(CO)Cl (5) [3], RuTp(PCy 3 ) (OMe)Cl (7) [8], RuTp(pn)Cl (8) [4], RuTp(dppe)Cl (9) [4], RuCp*(pn)Cl (10) [11], Ru(pn) 2 Cl 2 (11) [21], RuTp(PPh 3 ) 2 H (12) [22], RuTp(COD)Cl (13) [4], RuTp(py) 2 Cl (14) [4], and RuTp(PCy 3 ) (=C=CHBu n )Cl (15) [8] were prepared according to the literature. 1 H, 13 C{ 1 H}, and 31 P{ 1 H} NMR spectra were recorded on a Bruker AC-250 spectrometer operating at 250.13, 62.86 and 101.26 MHz, respectively, and were referenced to SiMe 4 and H 3 PO 4 (85%).…”