Results 101 to 110 of about 23,283 (229)
Practical One‐Pot Synthesis of Cyclic Conjugated Amides From Ketones
Cyclic conjugated amides from simple ketones: a one‐pot bromoform‐mediated homologation/amidation sequence provides direct access to 20 conjugated amides, including functionalized and linear examples, in up to 91% yield. Conjugated amides are valuable building blocks in organic synthesis; however, general access to cyclic conjugated amides remains ...
Maximilian Voigtländer +1 more
wiley +1 more source
Alkalizing amines such as cyclohexylamine and dimethylamine have great potential for protecting steamwater cycles against corrosion, but their thermal stability is limited and anionic decomposition products are a concern because of increased corrosion ...
Verliefde, Arne +2 more
core +1 more source
Die direkte Umwandlung von Alkoholen in tertiäre oder sekundäre Amine in einem Reaktionsschritt unter Verwendung von Nms‐Amiden wird beschrieben. Die Transformation zeichnet sich durch eine breite Toleranz gegenüber verschiedenen funktionellen Gruppen und eine hohe Stereospezifität aus, was ihre Eignung für die Synthese isotopenmarkierter Arzneimittel ...
Jakub Brześkiewicz +3 more
wiley +1 more source
Microwave spectrum and structure of the dimethylamine dimer: Evidence for a cyclic structure [PDF]
Rotational spectra have been measured for six isotopomers of the dimethylamine dimer using a Fourier‐transform microwave spectrometer. No tunneling splittings were observed for either the a‐ or c‐type rotational transitions and the spectra could be fit ...
Robert L. Kuczkowski +3 more
core +1 more source
Scaffold Hopping Provides Liver X Receptor Agonist With Preference for the β Subtype
A scaffold hopping strategy was pursued to enhance the binding pocket engagement and β‐subtype selectivity of liver X receptor agonist 2. The resulting spirocyclic lead compound, (S)‐7, demonstrates superior potency, enhanced potency‐based selectivity for LXRβ, and improved microsomal stability over the existing scaffold.
Annette Kärcher +5 more
wiley +1 more source
First controlled formation of cyanohexatriyne (HC7N) is achieved using a cobalt–alkyne masking strategy that overcomes the intrinsic instability of nitrile‐substituted polyynes. The approach enables spectroscopic validation of HC7N and reveals its pronounced electrophilicity through a selective conjugate addition with diethylamine.
Léa Lefrançois +4 more
wiley +1 more source
Osmium(VIII)-catalysed Oxidation of Dimethylamine by Periodate in Aqueous Alkaline Medium
Department of Chemistry, Arts and Science College, Jamkhandi Department of Chemistry, Karnatak University, Dharwad-580 003 Manuscript received 9 February 1994, revised 9 August 1994, accepted 15 September 1994 Osmium(VIII)-catalysed Oxidation of ...
S. C. HIREMATH +2 more
core +1 more source
Simulating Infrared Spectra of Matrix Isolation Experiments: What Works Best?
This study investigated how to best reproduce infrared spectra of matrix isolated species accurately and efficiently. Anharmonicity was found to be far more influential than the argon matrix itself. We also found that AIMD frequencies were no more accurate than conventional harmonic values at an equivalent level of theory.
Matthew H. V. Graneri +3 more
wiley +1 more source
PREVENTION AND CONTROL OF DIMETHYLAMINE VAPORS EMISSION: HERBICIDE PRODUCTION PLANT [PDF]
The widely used herbicide, dimethylamine salt of 2,4-dichlorophenoxy acetic acid (2,4-D-DMA), is usually prepared by mixing a dimethylamine (DMA) aqueous solution with a solid 2,4-dichlorophenoxy acetic acid (2,4-D). The vapors of the both, reactants and
Zorana Arsenijević +6 more
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