14742-23-5

Usage

Uses

Used in Research and Analytical Chemistry:
ETHYL-1-13C ALCOHOL is used as a stable isotope tracer for studying metabolism, pharmacokinetics, and the environmental fate of ethanol and related compounds. The presence of the 13C isotope allows for precise tracking and analysis in various scientific applications.
Used in Nuclear Magnetic Resonance (NMR) Spectroscopy:
ETHYL-1-13C ALCOHOL is utilized as a calibration standard in NMR spectroscopy, ensuring accurate measurements and analysis of chemical compounds.
Used in Mass Spectrometry:
As a calibration standard in mass spectrometry, ETHYL-1-13C ALCOHOL helps in the precise identification and quantification of compounds in complex mixtures.
Used in Pharmaceutical and Agrochemical Research:
ETHYL-1-13C ALCOHOL is employed in the production of labeled compounds for research purposes, aiding in the development and testing of new drugs and agrochemicals.

Upstream product

• 1563-79-7 [1-13C]-acetic acid 
• 1520-57-6 [1-13C]acetyl chloride 
• 73377-65-8 p-Phenylphenacyl <1-13C>Acetate 
• 115-10-6 Dimethyl ether 
• 1111-72-4 carbon dioxide 
• 100-66-3 methoxybenzene 
• 917-64-6 methyl magnesium iodide 

Downstream Products

• 6145-18-2 mono-[13C]-ethylene 
• 2188-31-0 <1-13C>-Acetaldehyd 
• 1563-79-7 [1-13C]-acetic acid 
• 35907-63-2 carbon monoxide-¹³C-¹⁸O 
• 20201-82-5 carbon dioxide-¹³C-¹⁸O₁ 
• 6532-48-5 methane 
• 6145-17-1 ethane-¹³C₁ 
• 34557-54-5 methane 
• 74-84-0 ethane 
• 74-85-1 ethene 
• 52026-74-1 ethane-¹³C₂ 
• 51915-19-6 [13C₂]ethene 
• 55125-78-5 carbon monoxide 
• 1111-72-4 carbon dioxide 

Relevant academic research and scientific papers

Synthesis of ethanol from aryl methyl ether/lignin, CO2 and H2

Currently, ethanol is produced via hydration of ethene or fermentation of foods. Lignin and CO2 are abundant, cheap and renewable feedstocks. Synthesis of ethanol using the lignin or its derivatives is of great importance, but is a great challenge and has rarely been reported. Herein, we propose a route to synthesize ethanol from CO2, H2, and lignin or various aryl methyl ethers, which can be derived from lignin. The reaction could be effectively conducted using Ru-Co bimetallic catalyst and the TON of ethanol could reach 145. Interestingly, ethanol was the only liquid product when lignin was used. A series of control experiments indicate that ethanol was formed via cleavage of aryl ether bond, reverse water gas shift (RWGS) reaction, and C-C bond formation. This protocol opens a way to produce ethanol using abundant renewable resources.

Synthesis of ethanol via a reaction of dimethyl ether with CO2 and H2

Ethanol is currently produced via the catalytic hydration of ethylene or fermentation of foods. The synthesis of ethanol from cheap and renewable CO2 is of great importance, but the state of the art routes encounter difficulties, especially in reaction selectivity and activity. Here we show a strategy of ethanol synthesis from CO2, dimethyl ether (DME) and H2. The reaction can be effectively promoted with a Ru-Co bimetallic catalyst using LiI as a promoter in 1,3-dimethyl-2-imidazolidinone (DMI) solvent. The predominant product of this reaction was ethanol and the selectivity of ethanol in total products could reach 71.7 C-mol%. The selectivity of ethanol in the liquid product could reach 94.1%, which was higher than the reported routes using CO2/CO. To the best of our knowledge, this is the first work on ethanol synthesis from DME, CO2 and H2. The reaction mechanism is discussed based on a series of control experiments.

A Dynamic Equilibrium of Oxaphosphetanes

The course of the Wittig reaction was investigated by rapid injection NMR spectroscopy.Rate constants for the formation of oxaphosphetanes were determined.A new dynamic equilibrium of oxaphosphetanes was observed for the first time.The solvent and substituent dependence of the new effect was investigated.By labeling various oxaphosphetanes with 13C and 17O the lithium salt dependence of the new equilibrium was shown.A lithium adduct of oxaphosphetanes under these conditions is proposed. - Key Words: Wittig reaction / Rapid injection NMR / Dynamic NMR / Oxaphosphetanes

Unimolecular Dissociations of the +. Metastable Ion

The metastable molecular ion of 2-hexanone loses a methyl radical mainly (ca. 80percent) from positions C(4) and C(6), in equal proportions, as indicated by 13C labelling.The necessary skeletal rearrangement of the butyl chain is interpreted in terms of a 1,2-+. shift .The results and the mechanisms concerning the minor eliminations of C2H4, C2H5., C3H5. and C3H6 neutrals are also discussed.

Molecular Structure of s-cis- and s-trans-Acrolein Determined by Microwave Spectroscopy

The rotational spectra of highly enriched single D-, 13C-, and 18O-substituted species of acrolein have been measured and analyzed over 12-58 GHz.The complete substitution structure has been determined for the less abundant s-cis conformer from the ground-state rotational constants.In addition newly assigned μb-type transitions for all isotopic species of the more abundant s-trans-acrolein have improved the structure of this conformer.Careful measurements of the Stark effect have resulted in an accurate determination of the electric dipole moment of the s-trans conformer.A comparison of the molecular structures of the two conformers has revealed significant differences in the central C-C bonds.