53933-47-4

Usage

Uses

Used in Pharmaceutical Synthesis:
(S)-1-Phenylethylhydroxylamine is used as a key intermediate in the synthesis of pharmaceuticals for its ability to contribute to the creation of chiral centers in drug molecules. The chiral nature of (S)-1-Phenylethylhydroxylamine is crucial for the development of enantiomerically pure drugs, which can have different biological activities and are often required for therapeutic efficacy and safety.
Used in Organic Chemistry Research:
In the realm of organic chemistry, (S)-1-Phenylethylhydroxylamine is employed as a reagent and building block for the synthesis of complex organic compounds. Its unique properties allow it to participate in various chemical reactions, facilitating the construction of intricate molecular structures that are valuable in both academic research and industrial applications.
Used in Chiral Molecule Production:
(S)-1-Phenylethylhydroxylamine is utilized as a precursor in the production of chiral molecules, which are essential in various chemical processes and applications. The ability of (S)-1-Phenylethylhydroxylamine to create chiral centers makes it a valuable asset in the synthesis of compounds that exhibit specific biological activities or are required for asymmetric catalysis.
Used in Medicinal Chemistry Development:
(S)-1-Phenylethylhydroxylamine holds promise for further research and development in medicinal chemistry, where it can be used to explore novel therapeutic agents and improve the efficacy and selectivity of existing drugs. Its potential applications in this field are vast, as chiral molecules are often at the core of innovative pharmaceuticals.

InChI:InChI=1/C8H11NO/c1-7(9-10)8-5-3-2-4-6-8/h2-7,9-10H,1H3/t7-/m0/s1

Upstream product

• 16528-57-7 tin(II) benzenethiolate 
• 7214-61-1 (1-nitroethyl)benzene 
• 136386-26-0 C₇H₁₃NO₂ 
• 71-43-2 benzene 
• 50314-86-8 acetophenone oxime 
• 2627-86-3 (S)-1-phenyl-ethylamine 
• 5470-11-1 hydroxylamine hydrochloride 
• 6192-52-5 p-toluenesulfonic acid monohydrate 
• 300843-73-6 (1S)-((1-phenylethyl)imino)acetonitrile N-oxide 
• 1374683-07-4 N-(S)-α-methylbenzyl-O-benzoyl hydroxylamine hydrochloride 
• 82319-42-4 (S)-N-(4-methoxybenzylidene)-α-methylbenzylamine 
• 20989-17-7 (2S)-2-phenylglycinol 
• 35341-76-5 (S)-2-(1-phenylethylamino)acetonitrile 
• 10341-75-0 (E)-1-phenylethanone oxime 

Downstream Products

• 136386-29-3 N-(1-phenylethyl)-N-hydroxyurea 
• 84388-95-4 N-benzylidene-1-phenylethanamine N-oxide 
• 127104-27-2 N-ethylidene-1-phenylethanamine N-oxide 
• 127180-97-6 (+/-)-N-(2-methylpropylidene)-1-phenylethanamine N-oxide 
• 172101-72-3 N-(α-methylbenzyl)-N-hydroxysuccinamic acid 
• 476686-97-2 N-(1-phenylethyl)-O-thiopivaloylhydroxylamine 
• 21003-57-6 (R,S)-bis(1-phenylethyl)amine 
• 10024-74-5 (R*,R*)-N-(1'-phenylethyl)-1-phenylethylamine 
• 127180-95-4 (R*,S*)-N-hydroxy-N-(1-phenylethyl)-1-phenylethanamine 
• 126927-41-1 (R*,R*)-N-hydroxy-N-(1-phenylethyl)-1-phenylethanamine 
• 127104-52-3 (R*,S*)-diethyl N,N-bis(1-phenylethyl)amino phosphate 
• 127104-51-2 (R*,R*)-diethyl N,N-bis(1-phenylethyl)amino phosphate 
• 36065-27-7 N-α-phenylethylacetamide 
• 137089-59-9 C₁₄H₁₉NO 

Relevant academic research and scientific papers

Analogues of the Herbicide, N-Hydroxy- N-isopropyloxamate, Inhibit Mycobacterium tuberculosis Ketol-Acid Reductoisomerase and Their Prodrugs Are Promising Anti-TB Drug Leads

New drugs to treat tuberculosis (TB) are urgently needed to combat the increase in resistance observed among the current first-line and second-line treatments. Here, we propose ketol-acid reductoisomerase (KARI) as a target for anti-TB drug discovery. Twenty-two analogues of IpOHA, an inhibitor of plant KARI, were evaluated as antimycobacterial agents. The strongest inhibitor of Mycobacterium tuberculosis (Mt) KARI has a Ki value of 19.7 nM, fivefold more potent than IpOHA (Ki = 97.7 nM). This and four other potent analogues are slow- and tight-binding inhibitors of MtKARI. Three compounds were cocrystallized with Staphylococcus aureus KARI and yielded crystals that diffracted to 1.6-2.0 ? resolution. Prodrugs of these compounds possess antimycobacterial activity against H37Rv, a virulent strain of human TB, with the most active compound having an MIC90 of 2.32 ± 0.04 μM. This compound demonstrates a very favorable selectivity window and represents a highly promising lead as an anti-TB agent.

Ultrasonic promoted synthesis of Ag nanoparticle decorated thiourea-functionalized magnetic hydroxyapatite: A robust inorganic-organic hybrid nanocatalyst for oxidation and reduction reactions

In this research, ultrasonic synthesis is applied for the fabrication of a novel catalyst, based on immobilization of silver nanoparticles (AgNPs) on thiourea functionalized magnetic hydroxyapatite. A recoverable Ag nano-catalyst is constructed by decoration of AgNPs on the surface of thiourea modified magnetic hydroxyapatite. Magnetic hydroxyapatite is used as an organic-inorganic hybrid support for the catalyst. The organic-inorganic hybrid support is prepared by co-precipitation, followed by its surface modification through covalent functionalization of 1-(3,5-bis(trifluoromethyl)phenyl)-3-propyl)thiourea. The fabricated catalyst has been characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), powder X-ray diffraction (XRD), nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and Brunauer-Emmett-Teller (BET) analysis. The nanoparticles are mostly tubular in shape and their particle sizes are smaller than 100 nm. This nanocatalyst shows efficient and robust catalytic activity in different reactions, including selective reduction of 4-nitrophenol (4NP) and oxidation of primary amines by applying NaBH4and urea hydrogen peroxide (UHP) as reagents, respectively. The catalyst shows good reusability in 10 sequential reaction runs.

Phyllosilicate-derived Nickel-cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N-heteroarenes

The development of cost-effective, noble metal-free catalytic systems for the hydrogenation of unsaturated aliphatic, aromatic, and heterocyclic compounds is fundamental for future valorization of general feedstock. With this aim, we report here the preparation of highly dispersed bimetallic Ni/Co nanoparticles (NPs), by a one-pot deposition-precipitation of Ni and Co phases onto mesoporous SBA-15 silica. By adjusting the chemical composition in the starting mixture, three supported catalysts with different Ni to Co weight ratios were obtained, which were further subjected to treatments under reducing conditions at high temperatures. Characterization of the resulting solids evidenced a homogenous distribution of Ni and Co elements forming the NPs, the best results being obtained for Ni/Co-2 : 2 samples, for which 50 wt.percent Ni–50 wt.percent Co NPs are found located on the surface of the residual phyllosilicate. Ni/Co-2 : 2, presenting the best performances for the hydrogenation of 2-methyl-quinoline, was further evaluated in the catalytic hydrogenation of selected imines, oximes and N-heteroarenes. Due to the high dispersion of bimetallic Ni?Co NPs, excellent properties (activity and selectivity) in the conversion of the selected substrates are reported.

B(C6F5)3-catalyzed hydrogenation of oxime ethers without cleavage of the N-O bond

The hydrogenation of oximes and oxime ethers is usually hampered by N-O bond cleavage, hence affording amines rather than hydroxylamines. The boron Lewis acid B(C6F5)3 is found to catalyze the chemoselective hydrogenation

Asymmetric α-oxyacylation of cyclic ketones

Reaction of cyclic ketones with chiral N-alkyl-O-acyl hydroxylamines leads to the corresponding α-oxyacylated carbonyl compound in up to 89% ee. The levels of asymmetric induction were influenced by solvent polarity, acid strength and, to a lesser extent,

Minimisation of E-Factor in the synthesis of N-hydroxylamines: The role of silver(i)-based coordination polymers

Among four different 2-D polymeric silver(i)-bpfb assemblies synthesized, [Ag(μ-bpfb)(N3)]n (4c) having an azide anion was shown to be the best catalyst for the partial oxidation of primary amines to N-monoalkylhydroxylamines with ur

The mechanism of the α-ketoacid-hydroxylamine amide-forming ligation

Three-ring circus! Surprisingly complex molecular acrobatics are observed in the mechanism of the α-ketoacid-hydroxylamine amide-forming ligation reaction. Although this remarkable reaction can already be used for the chemoselective union of large, unprotected peptide fragments the elucidated mechanism provides important clues to extending its application to larger and more complex biological targets. Copyright

Conjugate addition of lithium N-tert-butyldimethylsilyloxy-N-(α-methylbenzyl)amide: asymmetric synthesis of β2,2,3-trisubstituted amino acids

Conjugate addition of the homochiral ammonia equivalent lithium N-tert-butyldimethylsilyloxy-N-(α-methylbenzyl)amide to a range of α,β-unsaturated esters gives the corresponding β-amino esters in moderate to good levels of diastereoselectivity. O-Desilylation and cyclisation furnishes homochiral isoxazolidin-5-ones in >99:1 dr after purification. Sequential alkylation of these templates proceeds to give the corresponding 3,4-anti-disubstituted and 3,4,4-trisubstituted derivatives as single diastereoisomers after purification. The first alkylation occurs with high levels of diastereoselectivity on the face of the enolate anti to the C(3)-substituent, whereas the facial selectivity of the second alkylation is governed by a chiral relay effect, which depends upon the relative steric bulk of both the C(3)- and C(4)-substituents. Subsequent hydrogenolysis promotes cleavage of both the N-α-methylbenzyl group and the N-O bond within the isoxazolidin-5-one ring in one pot to give the corresponding β2,2,3-trisubstituted amino acids directly.

On the origins of diastereoselectivity in the alkylation of enolates derived from N-1-(1′-Naphthyl)ethyl-O-tert-butylhydroxamates: Chiral Weinreb amide equivalents

(Chemical Equation Presented) The stereochemical outcome observed upon alkylation of enolates derived from N-1-(1′-naphthyl)ethyl-O-tert- butylhydroxamates (chiral Weinreb amide equivalents) may be rationalized by a chiral relay mechanism. Deprotonation withKHMDS leads to a nonchelated (Z)-enolate inwhich the oxygen atoms adopt an anti-periplanar conformation. The configuration of the N-1-(1′-naphthyl)ethyl group dictates the conformation of the O-tert-butyl group and the configuration adopted by the adjacent pyramidal nitrogen atom. Highly diastereoselective enolate alkylation then proceeds anti to both the bulky tert-butyl group (sterically driven) and the N-lone pair (stereoelectronically driven).

Intermolecular Cope-type hydroamination of alkenes and alkynes using hydroxylamines

The development of the Cope-type hydroamination as a method for the metal- and acid-free intermolecular hydroamination of hydroxylamines with alkenes and alkynes is described. Aqueous hydroxylamine reacts efficiently with alkynes in a Markovnikov fashion to give oximes and with strained alkenes to give N-alkylhydroxylamines, while unstrained alkenes are more challenging. N-Alkylhydroxy-lamines also display similar reactivity with strained alkenes and give modest to good yields with vinylarenes. Electron-rich vinylarenes lead to branched products while electron-deficient vinylarenes give linear products. A beneficial additive effect is observed with sodium cyanoborohydride, the extent of which is dependent on the structure of the hydroxylamine. The reaction conditions are found to be compatible with common protecting groups, free OH and NH bonds, as well as bromoarenes. Both experimental and theoretical results suggest the proton transfer step of the N-oxide intermediate is of vital importance in the intermolecular reactions of alkenes. Details are disclosed concerning optimization, reaction scope, limitations, and theoretical analysis by DFT, which includes a detailed molecular orbital description for the concerted hydroamination process and an exhaustive set of calculated potential energy surfaces for the reactions of various alkenes, alkynes, and hydroxylamines.