Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Paul O. Oguadinma"'
Publikováno v:
Canadian Journal of Chemistry. 98:524-530
Various precursors of divalent copper have been treated with the meta-disubstituted phenylene-based proligand POC(H)OP (1,3-(i-Pr2PO)2C6H4) with the objective of preparing classical pincer complexes (POCOP)CuX. However, in no case was such species ob
Publikováno v:
Organometallics. 33:6544-6549
Among the various new challenges of chemical processes in water, research on stable, highly active, and recyclable catalysts is a prosperous field. We present here a palladium–NHC catalyst that was synthesized with good yields through a series of s
Publikováno v:
Inorganic Chemistry Communications. 14:1737-1741
Condensation of S-methylbenzylamine with 2 equiv. of 2,4-tert-butylphenol yielded the chiral tridentate ligand 2H2, which formed the dimetallic complex (2)(k-N,(μ-O)2ZnEt)((μ-O)2ZnEt), 3, upon reaction with ZnEt2. Reaction of the chiral Schiff base
Autor:
Frank Schaper, Paul O. Oguadinma, Ekou TchiriouaE. Tchirioua, Aysha AsedA. Ased, Ibrahim El-Zoghbi
Publikováno v:
Canadian Journal of Chemistry. 88:1040-1045
Symmetric N,N′-dialkyl-2-amino-4-imino-pent-2-enes (nacnacRH) can be prepared in high yields in a simple one-pot reaction from acetylacetone and 2 equiv. of amine. Optimized conditions require the azeotropic removal of water, use of a minimum amoun
Autor:
Frank Schaper, Paul O. Oguadinma
Publikováno v:
Canadian Journal of Chemistry. 88:472-477
The reaction of N,N′-diisopropyl-2-amino-4-iminopent-2-ene (nacnaci-PrH, 1) either with CuOt-Bu or with a mixture of mesityl copper and 10% CuOt-Bu afforded, in the presence of PPh3, CN(C6Me2H3), or MeCN, the Lewis base coordinated complexes nacnac
Publikováno v:
Inorganica Chimica Acta. 363:1779-1784
The mechanism for the preparation of Me2Si(C5Me4)2Cr, 1, from CrCl2(THF)x and Me2Si(C5Me4)2Li2 was investigated and – in contrast to earlier claims – no evidence was found for the participation of an auxiliary ligand. The formation and stability
Autor:
Robert E. Prud'homme, Todd J. J. Whitehorne, Frank Schaper, Frédéric Drouin, Paul O. Oguadinma
Publikováno v:
Organometallics. 29:2139-2147
N,N′-Di(S-phenylethyl)-2-amino-4-iminopent-2-ene, S,S-nacnacCH(Me)PhH, 1a, and N,N′-dibenzyl-2-amino-4-iminopent-2-ene, nacnacBnH, 1b, react with ZnEt2 to form the corresponding nacnacZnEt complexes 2a and 2b. Neither complex is reactive with 2-p
Publikováno v:
Inorganic Chemistry Communications. 13:529-533
Reaction of β-diketiminate lithium salts, nacnacRLi(THF) (R = 2,6-xylyl (1a), R-CH(Me)Ph (1b)), with ZrCl4 or ZrCl4·THF yielded the mono-diketiminate complexes nacnacRZrCl3(THF), 2a and 2b. Complex 2a did not react further with a second equivalent
Autor:
Frank Schaper, Paul O. Oguadinma
Publikováno v:
Organometallics. 28:6721-6731
N,N'-Dibenzyl-4-amino-2-iminopent-3-ene, nacnacBnH, was obtained in a one-step synthesis starting from benzylamine and acetylacetone. Reaction of nacnacBnH with CuOtBu in the presence of various Lewis bases gave the corresponding copper complexes (na
Publikováno v:
Organometallics. 28:4912-4922
Attempts to synthesize zirconocene hydrido alkoxide species, Cp2Zr(H)OR, via several synthetic pathways consistently failed to yield the targeted complexes, which seem prone to undergo disproportionation into Cp2ZrH2 and a bisalkoxide complex. Reacti