(+)-Bis[(R)-1-phenylethyl]amine - CAS 23294-41-9
Catalog number: 23294-41-9
Category: Main Product
Molecular Formula:
Molecular Weight:
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(+)-Bis[(R)-1-phenylethyl]amine; 23294-41-9; ST50405798; (+)-Bis[(R)-1-phenylethy]aminehydrochloride; (1R)-1-phenyl-N-[(1R)-1-phenylethyl]ethanamine; 82398-30-9
Boiling Point:
86ºC (0.05 mmHg)
Melting Point:
Canonical SMILES:
1.Experimental and theoretical studies on the enantioselectivity of molecularly imprinted polymers prepared with a chiral functional monomer.
Torres JJ1, Gsponer N, Ramírez CL, Vera DM, Montejano HA, Chesta CA. J Chromatogr A. 2012 Nov 30;1266:24-33. doi: 10.1016/j.chroma.2012.09.042. Epub 2012 Sep 25.
A comprehensive study on the enantioseparation of racemic bis[1-phenylethyl]amine (PEA) on a series of molecularly imprinted polymers (MIPs) prepared using the chiral functional monomer (S)-2-(2-methyl-acryloylamino)-3-phenyl propionic acid (MAPP) is reported. MIP-R, MIP-S and MIP-RS, were synthesized separately by imprinting the pure enantiomers (R-, S-PEA) and racemic PEA, respectively, MAPP, EDGMA as crosslinker and chloroform as the porogen. It was found that all MIPs prepared were able to resolve the PEA racemate. Residence times (t(r)) and enantioselectivity factors (α) were estimated from typical elution chromatography experiments. Frontal chromatography experiments were conducted to acquire the adsorption isotherms for both enantiomers on the different MIPs (and on the non-imprinted polymer, NIP). The adsorption isotherms were analyzed using the affinity spectrum (AS) and the expectation-maximization (EM) methods. The study also involved the theoretical evaluation of the MAPP/enantiomers interactions in the pre-polymer mixture.
2.Synthetic and reactivity studies of hetero-tri-anionic sodium zincates.
Francos J1, Kennedy AR, O'Hara CT. Dalton Trans. 2016 Apr 14;45(14):6222-33. doi: 10.1039/c5dt04329h. Epub 2015 Dec 15.
The synthesis and characterisation of several sodium zincate complexes are reported. The all-alkyl monomeric sodium zincate, (PMEDTA)·Na(μ-CH2SiMe3)Zn(t)Bu22, is prepared by combining equimolar quantities of (t)Bu2Zn, (n)BuNa and PMDETA (N,N,N',N'',N''-pentamethyldiethylenetriamine)]. A similar approach was used to prepare and isolate the unusual dimeric zincate [(PMEDTA)·Na(μ-(n)Bu)Zn(t)Bu2]23. When an equimolar mixture of (n)BuNa, (t)Bu2Zn and TMP(H) (2,2,6,6-tetramethylpiperidine) is combined in hexane, the hetero-tri-leptic TMP(H)-solvated zincate (TMPH)Na(μ-TMP)(μ-(n)Bu)Zn(t)Bu 4 results. Complex 4 can also be prepared using a rational approach [i.e., utilising two molar equivalents of TMP(H)]. When TMEDA is reacted with an equimolar mixture of (n)BuNa, (t)Bu2Zn and TMP(H), the monomeric sodium zincate (TMEDA)Na(μ-TMP)(μ-(n)Bu)Zn(t)Bu 5 was obtained - this complex is structurally similar to the synthetically useful relation (TMEDA)·Na(μ-TMP)(μ-(t)Bu)Zn((t)Bu) 1.
3.Synthesis, characterization and reactivity of single-site aluminium amides bearing benzotriazole phenoxide ligands: catalysis for ring-opening polymerization of lactide and carbon dioxide/propylene oxide coupling.
Li CY1, Liu DC, Ko BT. Dalton Trans. 2013 Aug 28;42(32):11488-96. doi: 10.1039/c3dt51003d. Epub 2013 Jul 2.
New aluminium complexes containing bis-BTP ligands (BTP = N,O-bidentate benzotriazole phenoxide) were synthesized and structurally characterized. Amine elimination of Al(NMe2)3 with (R)BTP-H ligands ((CMe2Ph)BTP-H = 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, (t-Bu)BTP-H = 2-(2H-benzotriazol-2-yl)-4,6-di-tert-butylphenol and (TMCl)BTP-H = 2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol) (2.0 mol equiv.) in toluene or hexane afforded the penta-coordinated single-site amidoaluminium complexes [((R)BTP)2Al(NMe2)] (R = CMe2Ph for 1; R = t-Bu for 2; R = TMCl for 3) in satisfactory yields. With the addition of H2O (0.5 molar equiv.), the hydrolysis of Al amides 2 and 3 in a mixed solvent of THF/toluene at 25 °C produced oxo-bridged bimetallic aluminium complexes [{((R)BTP)2Al}2(μ-O)] (R = t-Bu for 4 and R = TMCl for 5) in ≥70% yield. According to single crystal X-ray diffraction studies, complex 2 shows a monomeric Al(iii) amide with bis((t-Bu)BTP) ligands and one -NMe2 group, whereas alumoxane 4 is a dinuclear species, in which the bonding mode of the Al-O-Al moiety from μ2-oxo assumes a linear type.
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CAS 23294-41-9 (+)-Bis[(R)-1-phenylethyl]amine

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