34832-45-6

Upstream product

• 7766-50-9 1-undecen-11-ylbromide 
• 124-40-3 dimethyl amine 
• 24928-46-9 N,N-dimethylundec-10-enamide 

Relevant academic research and scientific papers

Cross-linked comb-shaped anion exchange membranes with high base stability

A unique one-step cross-linking strategy that connects quaternary ammonium centers using Grubbs II-catalyzed olefin metathesis was developed. The cross-linked anion exchange membranes showed swelling ratios of less than 10% and hydroxide conductivities of 18 to 40 mS cm-1. Cross-linking improved the membranes' stability to hydroxide degradation compared to their non-cross-linked analogues. This journal is the Partner Organisations 2014.

Reduction and Reductive Deuteration of Tertiary Amides Mediated by Sodium Dispersions with Distinct Proton Donor-Dependent Chemoselectivity

A practical and scalable single electron transfer reduction mediated by sodium dispersions has been developed for the reduction and reductive deuteration of tertiary amides. The chemoselectivity of this method highly depends on the nature of the proton donor. The challenging reduction via C-N bond cleavage has been achieved using Na/EtOH, affording alcohol products, while the use of Na/NaOH/H2O leads to the formation of amines via selective C-O scission. Sodium dispersions with high specific surface areas are crucial to obtain high yields and good chemoselectivity. This new method tolerates a range of tertiary amides. Moreover, the corresponding reductive deuterations mediated by Na/EtOD-d1 and Na/NaOH/D2O afford useful α,α-dideuterio alcohols and α,α-dideuterio amines with an excellent deuterium content.

Chromatographic material and method for preparation thereof

A chromatographic material comprising a zwitterionic ligand covalently bound to a substrate, the ligand preferably has a formula II: wherein R1, R2, R3 are independently selected from an oxygen atom that is configured to connect to a substrate atom in the substrate, an oxygen atom that is configured to connect to a silicon atom of an adjacent ligand, a hydroxyl group, a halogen atom, an alkoxy group, a dialkylamino group, an acyl group, an alkyl group, or an aryl group; L1, L2 and L3 are independently hydrophobic moieties; each containing 2 to 30 carbon atoms, wherein there are at least 10 carbon atoms in the combined chain lengths of L1, L2 and L3; X is an O atom, S atom, amide group or sulfonamide group; n is 0 or 1; R4, R5 are independently selected from a hydrogen atom or a hydrocarbon moiety containing 1 to 20 carbon atoms; and Rf is a negatively charged moiety comprising a sulfonic, carboxylic, or phosphonic functional group.

Preparation and antimicrobial behaviour of quaternary ammonium thiol derivatives able to be grafted on metal surfaces

New thiol derivatives containing a quaternary ammonium group bearing variable hydrocarbon chains via an amide connector or not between the sulphur and nitrogen atoms were synthesised with the future aim to be grafted on metal surfaces for obtaining contact-active auto-bactericidal surfaces. Their biostatic and bactericidal activities were evaluated against four microbial strains (Pseudomonas aeruginosa, Staphylococcus aureus, Aspergillus niger and Candida albicans). The presence of the thiol and amide functions in these surfactants was discussed in relation with the antimicrobial activity along with the influence of the length of alkyl chains in order to determine which molecular parameters are 'critical' for biological activity, and consequently what molecules must be chosen for grafting on metal surface.

NEW ORGANOSILANES AND SUBSTRATES COVALENTLY BONDED WITH SAME AND METHODS FOR SYNTHESIS AND USE

The present invention provides novel silicon compounds, methods for making these novel silicon compounds, compositions comprising these novel silicon compounds attached to substrates, methods for attaching the novel silicon compouds to substrates and methods for using the compositions in a variety of chromatographic applications.