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Propargylamine

Propargylamine is a versatile organic compound with a triple bond in its structure.
It is widely used in various chemical reactions and synthetic procedures, particularly in the synthesis of pharmaceuticals and other bioactive molecules.
The PubCompare.AI tool can help researchers optimize their Propargylamine research by providing easy access to relevant protocols from literature, pre-prints, and patents, while leveraging AI-driven comparisons to identify the best procedures and products.
This can enhance the reproducibility and accuracy of Propargylamine studies, leading to more reliable results and advancements in the field.
Researchers can utilize this powerful tool to streamline their Propargylamine research and make more informed decisions throughout the process.

Most cited protocols related to «Propargylamine»

Two fluorophores, 7-(dimethylamino)-coumarin-4-acetic acid (DMACA, prepared according to literature procedures52 , 53 (link)) and 7-nitrobenzofurazan (NBD, Sigma–Aldrich), were functionalized with an alkyne substituent (Scheme 2) so that they could be coupled to the linezolid–azide analogue 9 by click chemistry. DMACA 23 was reacted with propargylamine in the presence of HATU as coupling agent to give DMACA linked alkyne 24. NBD linked alkyne 26 was prepared by a substitution reaction from NBD-Cl (4-chloro-7-nitrobenzofurazan) 25 by an improved method based on that previously reported in the literature.54 The use of Cs2CO3 in THF for the substitution gave improved yields compared to aqueous NaHCO3 in MeOH.

Synthesis of alkyne-functionalised fluorophores. Reagents and conditions: (i) propargylamine, HATU, DIPEA, DMF rt; (ii) propargylamine, Cs2CO3, THF.

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Publication 2014
4-Chloro-7-nitrobenzofurazan Acetic Acid Alkynes Azides Bicarbonate, Sodium Coumarins DIPEA Linezolid propargylamine
The construct pTYB-HAUb, comprising the sequences of the human Ub (lacking Gly 76), an intein and a chitin binding domain, plus an HA tag, was used to synthesize HAUb75-MESNa as described previously (Borodovsky et al., 2002 (link)). Briefly, Ub–intein–chitin domain fusion protein was expressed in Escherichia coli (18 h induction with 0.4 mM IPTG at 17°C). Cell pellets were resuspended in 50 mM HEPES, pH 7.4, 150 mM NaCl, and 0.5 mM TCEP and lysed in a high-pressure homogenizer. The cleared cell extract was loaded onto a 15 ml chitin bead (New England Biolabs) column at a flow rate of 0.5 ml/min. The column was washed with 60 ml of lysis buffer followed by 25 ml of lysis buffer containing 50 mM β-mercaptoethanesulfonic acid sodium salt (MESNa) and incubated overnight at 37°C for the induction of on-column cleavage. HAUb75-MESNa thioester was eluted with 25 ml of lysis buffer and concentrated: approximately 2.5 mg of protein was recovered from a 1-L culture. The N-terminal Met of the HA-tag was frequently processed off during expression, resulting in a mixture of two proteins that behaved identically in labeling experiments.
To synthesize the HA-UbC2Br or HA-UbPA probes, 0.2 mM of 2-bromoethylamine or 250 mM propargylamine was added to a solution of HAUb75-MESNa (1–2 mg/ml) in 500 μl of column buffer, respectively. pH was carefully adjusted to 8 with NaOH, and after 20 min shaking at 1,400 rpm, at room temperature, 100 μl of 2.0 M aqueous HCl was added and the resultant reaction mixture was promptly transferred to a PD10 gravity column for buffer exchange, according to the manufacturer's instructions.
The probe was then aliquoted and frozen at −80°C for storage (no significant deterioration is observed for several months of storage except for HA-UbC2Br, which is prone to hydrolysis). All HA-Ub-derived probes were analyzed by liquid chromatography mass spectrometry (LC-MS) using a 1290 UPLC (Agilent) coupled to a 6560 quadrupole time-of-flight (QToF) mass spectrometer (Agilent) to monitor the reaction and the product detected by [M+H]+ = 10,197.6221, with >90% purity.
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Publication 2019
Buffers Cell Extracts Cells Chitin Chitin Binding Domain Coenzyme M Cytokinesis Escherichia coli Freezing Gravity HEPES Homo sapiens Hydrolysis Intein Isopropyl Thiogalactoside Liquid Chromatography Mass Spectrometry Mesna Pellets, Drug Pressure propargylamine Proteins Sodium Sodium Chloride Staphylococcal Protein A tris(2-carboxyethyl)phosphine
RNA oligonucleotides were synthesized on a ABI 394 synthesizer (DNA/Peptide Core Facility, University of Utah, Salt Lake City) using 5′-DMTr protected β-cyanoethyl phosphoramidites on a 1.0 mmol scale with coupling times of 25 min for increased coupling efficiency of amidites 6 and 7. All RNAs were deprotected as previously described.46 The RNA oligonucleotides containing ethynyl and propargylamine modifications were gel-purified and quantified as previously described.14 (link) The identity of the RNAs was confirmed by MALDI mass spectrometry.
List of mass values, [M+H]+, for the RNA containing propargylamine and ethynyl modifications: Propargylamine: Calc. 3929.5, Obs. 3929.5; Ethynyl: Calc. 3900.4, Obs. 3900.5.
Publication 2012
Mass Spectrometry Oligonucleotides Peptides phosphoramidite propargylamine Sodium Chloride Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
Alternatively, different surface functional HBPE nanoparticles (10, 11 and 12) can be prepared from carboxylated HBPE nanoparticles (9, SI Scheme S1) using water-soluble EDC [1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride] chemistry, following previously reported method.27 (link) Briefly, to a solution of carboxylated HBPE nanoparticles (9, 1.0 mole) in MES buffer, a solution of EDC (10 mmol) and NHS (10 mmol) was added followed by 3 min incubation at room temperature. Ethylenediamine, propargylamine or aminopropylazide (10 mmol) in DMF were then added drop-wise and continued for 3 h to obtain 10, 11 or 12, respectively.
Publication 2009
Buffers Carbodiimides Ethylenediamines Nevus propargylamine
We prepared AHA and the triazole ligand as described previously47 (link). We prepared the TexasRed–PEO2–Alkyne by dissolving TexasRed–PEO2–propionic acid succinimidyl ester (Biotium Inc.) in excess neat propargylamine (Sigma–Aldrich). After 30 min, we added the solution dropwise to anhydrous diethyl ether. We collected the resulting precipitate by centrifugation (5 min, 10°C, 10.000 × g). Then, we washed the precipitate three times with anhydrous diethyl ether, dried and characterized it by ion spray MS to confirm the formation of the product with a molecular weight of 802.90 g/mol (Supplementary Fig. 1a). We synthesized the azide–bearing fluorescein tag in a similar way using the amine–reactive 5–carboxyfluorescein–PEO8–propionic acid succinimidyl ester (Biotium Inc.) and 3–azidopropan–1–amine20 (link) to yield a product with a molecular weight of 881.20 g/mol (Supplementary Fig. 1b).
Publication 2010
Alkynes Amines Azides carboxyfluorescein Centrifugation Esters Ethyl Ether Fluorescein Ligands propargylamine propionic acid Triazoles

Most recents protocols related to «Propargylamine»

Fmoc-Propargylamine and Fmoc-Mba (Fmoc-2-methyl-3-butyn-2-amine) were prepared accordingly as described before [18 (link)]. The structures of both compounds, as well as the spectra of their 1H and 13C NMR analysis, can be found in the Supplementary Materials (Figures S5 and S6). 1H and 13C NMR spectra were recorded on a Bruker 500 MHz spectrometer (Bruker Corporation, Billerica, MA, USA).
Fmoc-Propargylamine (5): 1H NMR (DMSO-d6, 500 MHz) δ 7.89 (2H, d, J = 7.5 Hz, Fmoc H4 and H5), 7.78 (1H, t, J = 5.5 Hz, NH), 7.69 (2H, d, J = 7.0 Hz, Fmoc H1 and H8), 7.41 (2H, td, J = 7.5, 0.5 Hz, Fmoc H3 and H6), 7.33 (2H, td, J = 7.5, 1.0 Hz, Fmoc H2 and H7), 4.32 (2H, d, J = 7.0 Hz, Fmoc CH2), 4.22 (1H, t, J = 6.7 Hz, Fmoc H9), 3.78 (2H, dd, J = 6.0, 2.5 Hz, H3), 3.11 (1H, t, J = 2.5 Hz, H1);
13C NMR (DMSO-d6, 125 MHz) δ 155.92 (C), 143.81 (C), 143.81 (C), 140.73 (C), 140.73 (C), 127.64 (CH), 127.64 (CH), 127.08 (CH), 127.08 (CH), 125.15 (CH), 125.15 (CH), 120.13 (CH), 120.13 (CH), 81.38 (C), 73.05 (CH), 65.67 (CH2), 46.61 (CH), 29.78 (CH2).
Fmoc-Mba (6): 1H NMR (DMSO-d6, 500 MHz) δ 7.89 (2H, d, J = 7.5 Hz, Fmoc H4 and H5), 7.73 (2H, d, J = 7.5 Hz, Fmoc H1 and H8), 7.58 (1H, s, NH), 7.41 (2H, td, J = 7.5, 0.5 Hz, Fmoc H3 and H6), 7.33 (2H, td, J = 7.5, 1.0 Hz, Fmoc H2 and H7), 4.27 (2H, d, J = 5.5 Hz, Fmoc CH2), 4.20 (1H, t, J = 6.5 Hz, Fmoc H9), 3.07 (1H, s, H1), 1.47 (6H, s, Me groups);
13C NMR (DMSO-d6, 125 MHz) δ 154.37 (C), 143.90 (C), 143.90 (C), 140.72 (C), 140.72 (C), 127.62 (CH), 127.62 (CH), 127.06 (CH), 127.06 (CH), 125.28 (CH), 125.28 (CH), 120.10 (CH), 120.10 (CH), 88.10 (C), 88.10 (C), 70.77 (CH), 65.19 (CH2), 46.68 (CH3), 46.13 (CH3), 29.14 (C).
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Publication 2024
HeLa cells were seeded and cultured in 35 mm confocal dish and 25 cm2 culture flask for fluorescence and gel analysis, respectively before treatment of Bortezomib (0.8 µm) and P8 (5 µm) for 24 h. For fluorescence analysis, cells were next fixed and permeabilized with 4% formaldehyde and 0.1% Triton X‐100 at room temperature consistently for 30 min. The cells were then added with propargylamine (10.0 mm) before white light illumination for 20 min. Freshly premixed click solution (1.7 mm TBTA, 50.0 mm CuSO4, 50.0 mm TCEP, and 50.0 mm BODIPY‐N3) was finally added to pretreated cells and reacted for 1 h. Cells were washed with PBS three times to remove unreacted click solution and treated with Hoechst 33342 before imaging with Olympus FV1000 FluoViewTM confocal microscope. For gel analysis, cells were incubated with propargylamine (10.0 mm) before white light illumination for 20 min. Next, cells were ultrasonic lysed with 1% SDS followed by reaction with newly prepared click solution (1.7 mm TBTA, 50.0 mm CuSO4, 50.0 mm TCEP, and 50.0 mm TMR‐N3). The obtained proteome samples were precipitated with acetone before gel analysis.
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Publication 2024
Protein triple labelling was demonstrated with CTC-445.2d modified with an N-terminal LPETG, an internal KL-tag and a C-terminal NGLH motif. In the first step, 50 µM protein was C-terminally labelled using 1 µM OaAEP1 in 100 mM HEPES buffer, pH 7, containing 20 mM propargylamine. Next, the reaction was diluted tenfold with 100 mM HEPES buffer, pH 8, and bound to Ni-NTA. After collecting the flowthrough, the protein was N-terminally cleaved with SrtA-7M in the presence of 5 mM propargylamine. Next the protein was buffer-exchanged into 100 mM HEPES buffer, pH 8, using NAP-5, and N-terminally labelled in a reaction containing 30 µM protein, 450 µM TAMRA-LPETGGH and 1 µM SrtA-7M. The SrtA-7M was subsequently removed by rebinding to Ni-NTA and collecting the flowthrough. Next, the reaction was buffer-exchanged via NAP-5 into 100 mM HEPES buffer, pH 8, and the KL-tag labelling was carried out in a reaction containing 50 µM protein, 1 mM biotin-RNGLH, 1 mM NiSO 4 and 1 µM OaAEP1 for 4 h at 25 °C. https://doi.org/10.1038/s41557-024-01520-1
Publication 2024
To the solution of peptide acid (1.0 equiv.) obtained from resins 7, 8 or 19 and HATU (4.0 equiv.) dissolved in DMF/CH2Cl2 (1 : 1, peptide concentration 0.02 M), propargylamine (3.0 equiv.) and Et3N (5.0 equiv.) were added. After stirring for 1 h, CH2Cl2 was removed from the reaction mixture under reduced pressure. The remaining mixture was purified by HPLC with a Vydac C18 column.
Publication 2024
Prior to the labeling process, cells were washed with Hank’s balanced salt solution (HBSS) to remove any residual medium. Subsequently, cells were treated with freshly prepared MG probes in a DMEM solution for 20 min. The cells were rinsed once with HBSS and further incubated with propargylamine (PA) in HBSS for 3 min, followed by 660 nm light irradiation. The cells underwent two additional washes with HBSS and were ready for downstream procedures, such as RNA isolation, protein extraction or slide preparation for confocal microscopy imaging.
Publication 2024

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Propargylamine is a laboratory reagent that functions as a precursor for the synthesis of various organic compounds. It is a colorless, volatile liquid with a distinctive odor. Propargylamine is commonly used in organic synthesis, particularly in the preparation of heterocyclic compounds and other nitrogen-containing molecules.
Propargylamine hydrochloride is a chemical compound used as a laboratory reagent. It is a white crystalline solid that is soluble in water and various organic solvents. The compound is commonly used in organic synthesis reactions and as a precursor for the synthesis of other compounds.
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Chitin resin is a chromatography medium used for the purification of proteins and other biomolecules. It is derived from the exoskeletons of crustaceans and has a high affinity for proteins containing chitin-binding domains.
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DMSO is a versatile organic solvent commonly used in laboratory settings. It has a high boiling point, low viscosity, and the ability to dissolve a wide range of polar and non-polar compounds. DMSO's core function is as a solvent, allowing for the effective dissolution and handling of various chemical substances during research and experimentation.
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Sodium ascorbate is a water-soluble salt of ascorbic acid (vitamin C). It serves as a source of vitamin C for various laboratory and research applications.
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N,N-diisopropylethylamine (DIPEA) is a volatile, colorless liquid organic compound commonly used as a base and a catalyst in various chemical reactions. It is a tertiary amine with the molecular formula (CH3)2CH-CH2-N(CH3)2. DIPEA is a commonly used reagent in organic chemistry and biochemistry.

More about "Propargylamine"

Propargylamine, also known as 2-propynylamine or propargylic amine, is a versatile organic compound with a triple bond (alkyne) in its structure.
This reactive functional group makes Propargylamine a valuable building block in various chemical reactions and synthetic procedures, particularly in the synthesis of pharmaceuticals and other bioactive molecules.
Propargylamine hydrochloride, a salt form of the compound, is also commonly utilized in research and industrial applications.
Chitin resin, a polymer derived from the exoskeletons of crustaceans, can be used in combination with Propargylamine for selective enrichment and isolation of biomolecules.
DMSO (Dimethyl sulfoxide) is a widely used solvent that can be employed in Propargylamine-based reactions and syntheses.
Sodium azide, another important reagent, can react with Propargylamine to produce various nitrogen-containing heterocyclic compounds.
N,N-dimethylformamide (DMF) is another commonly used solvent in Propargylamine chemistry, particularly in the preparation of Propargylamine-derived compounds.
VIVASPIN 20 Columns, a type of ultrafiltration device, can be utilized for the purification and concentration of Propargylamine-containing solutions.
Sodium ascorbate and ascorbic acid (vitamin C) are antioxidants that can be employed in Propargylamine-based reactions to prevent oxidation and improve reaction conditions.
N,N-diisopropylethylamine (DIPEA), also known as Hünig's base, is a versatile organic base that can be used in conjunction with Propargylamine in various synthetic transformations.
The PubCompare.AI tool can be invaluable for researchers working with Propargylamine, as it provides easy access to relevant protocols from literature, pre-prints, and patents, while leveraging AI-driven comparisons to identify the best procedures and products.
This can enhance the reproducibility and accuracy of Propargylamine studies, leading to more reliable results and advancements in the field.
Researchers can utilize this powerful tool to streamline their Propargylamine research and make more informed decisions throughout the process.