Extremely bulky secondary phosphinoamines as substituents for sterically hindered aminosilanes

2015 ◽  
Vol 44 (33) ◽  
pp. 14842-14853 ◽  
Author(s):  
Tobias Böttcher ◽  
Cameron Jones
Keyword(s):  
Alkali Metal ◽  
Secondary Amines ◽  
Metal Amides ◽  
Sterically Hindered ◽  
Molecular Compounds

The synthesis of a series of extremely bulky secondary amines with a phosphine function, Ar†(PR2)NH (Ar†= C6H2{C(H)Ph2}2Pri-2,6,4; R = Ph, NEt2, NPri2) is described. Deprotonation with eithern-BuLi or KH yields the respective alkali metal amides. Reactions with a series of chlorosilanes allows access to monomeric molecular compounds bearing the extremely bulky amino substituentsviasalt elimination.

scholarly journals Ambient Moisture Accelerates Hydroamination Reactions of Vinylarenes with Alkali‐Metal Amides under Air

2020 ◽  
Vol 59 (43) ◽  
pp. 19021-19026 ◽  
Author(s):  
Florian F. Mulks ◽  
Leonie J. Bole ◽  
Laia Davin ◽  
Alberto Hernán‐Gómez ◽  
Alan Kennedy ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Metal Amides

Synthesis and Structures of Alkali Metal Amides Derived from the Ligands [N(SiMe2Ph)(SiMe3)]−, [N(tBu)(SiMe3)]−, [N(Ph)(2-C5H4N)]−, and [N(2-C5H4N)2]−

2003 ◽  
Vol 2003 (18) ◽  
pp. 3391-3400 ◽  
Author(s):  
Floria Antolini ◽  
Peter B. Hitchcock ◽  
Alexei V. Khvostov ◽  
Michael F. Lappert
Keyword(s):  
Alkali Metal ◽  
Metal Amides

Titanium Carbene Complexes Stabilized by Alkali Metal Amides

2019 ◽  
Vol 58 (6) ◽  
pp. 1833-1837 ◽  
Author(s):  
Hassan Osseili ◽  
Khai‐Nghi Truong ◽  
Thomas P. Spaniol ◽  
Laurent Maron ◽  
Ulli Englert ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Carbene Complexes ◽  
Metal Amides

Acylation of sterically hindered secondary amines and acyl hydrazides

1995 ◽  
Vol 36 (34) ◽  
pp. 6013-6016 ◽  
Author(s):  
Hwa-Ok Kim ◽  
Benjamin Gardner ◽  
Michael Kahn
Keyword(s):  
Secondary Amines ◽  
Sterically Hindered

Enhancement of the initial hydrogenation of Mg by ball milling with alkali metal amides MNH2(M = Li or Na)

2015 ◽  
Vol 44 (38) ◽  
pp. 16694-16697 ◽  
Author(s):  
Hailiang Chu ◽  
Shujun Qiu ◽  
Lixian Sun ◽  
Jacques Huot
Keyword(s):  
Alkali Metal ◽  
Ball Milling ◽  
Metal Amides

The addition of 4 wt% of MNH2(M = Li, Na) to pure Mg by ball milling greatly enhances the first hydrogenation (activation). Under 2 MPa of H2at 608 K, the best activation performance was achieved with the NaNH2additive.

Pulse Radiolysis of Liquid Deuterated Ammonia

1973 ◽  
Vol 51 (22) ◽  
pp. 3653-3661 ◽  
Author(s):  
William Arthur Seddon ◽  
John Wallace Fletcher ◽  
John Jevcak ◽  
Fred Charles Sopchyshyn
Keyword(s):  
Alkali Metal ◽  
Time Scale ◽  
Pulse Radiolysis ◽  
Equilibrium Mixture ◽  
Solvated Electron ◽  
Metal Amides ◽  
Initial Yield ◽  
Metal Electron

Pulse radiolysis of solutions of alkali metal amides in deuterated ammonia at −15 °C produces an initial absorption with a maximum at 1500 nm due to the solvated electron, eam−. This decays on a microsecond time scale giving a residual long lived absorption with a slightly broader spectrum and a maximum displaced to 1640 nm. We suggest the residual absorption is an equilibrium mixture of eam− and a metal–electron species. The initial decay of eam− is suppressed by scavenging ND2 and/or ND− radicals with dissolved D2 (1 atm) or NaBH4. Evidence is also obtained for the reaction ND− + D2 → eam−. It is estimated that k(eam− + ND2) and k(BH4− + ND2) = 2.5 × 1010 and 7 × 107 M−l s−1, respectively. Measurements of the initial yield in NH3 and ND3 give [Formula: see text]and 3.6 ± 0.4 molecules/100 eV, respectively.

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