The influence of chelate and mini-chelate effects on sulfate binding was explored for six amide-, amide/amine-, urea-, and urea/amine-based ligands. Two of the urea-based hosts were selective for SO4(2-) in water-mixed DMSO-d6 systems. Results indicated that the mini-chelate effect provided by a single urea group with two NH binding sites appears to provide enhanced binding over two amide group...

Two kinds of long-chain amidoamine derivatives (C13A2AA and C17A2AA) bearing three amide moieties and terminal amine moieties were synthesized and their gelation abilities in apolar solvents were compared with the previously reported amidoamine gelator containing two amide moieties (C18AA). The derivatives acted as organogelators in the same organic solvents. XRD and FT-IR measurements revealed...

In the crystal structure of the title compound, C(6)H(13)N(2)O(+)·C(7)H(4)NO(5) (-), the isonipecotamide cations and the 5-nitro-salicylate anions form hydrogen-bonded chain substructures through head-to-tail piperidinium-carboxyl-ate N-H⋯O hydrogen bonds and through centrosymmetric cyclic head-to-head amide-amide hydrogen-bonding associations [graph set R(2) (2)(8)]. These chains are cross-lin...

In the title compound, C17H25N3O2S, the terminal and central amide groups are, respectively, twisted and coplanar with the attached benzene ring [O-C-C-C torsion angles = 22.7 (3) and 5.4 (3)°]. In the central part of the mol-ecule, the amide and thio-amide residues are approximately perpendicular [C-N-C-S torsion angle = -104.98 (18)°]. Supra-molecular layers with a zigzag topology are formed ...

In the structure of the title compound, C(6)H(13)N(2)O(+)·C(2)H(3)O(2) (-)·H(2)O, the amide H atoms of the cations form centrosymmetric cyclic hydrogen-bonding associations incorporating two water mol-ecules [graph set R(4) (2)(8)], which are conjoint with cyclic water-bridged amide-amide associations [R(4) (4)(12)] and larger R(4) (4)(20) associations involving the water mol-ecule and the acet...

In this communication, we show that the combination of 1 M lithium bis(trifluoromethylsulfonyl)amide and 1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide (LiTFSI/[Py1,4]FSI) can be regarded as a possible stable electrolyte for IL based lithium ion batteries. We compare the charge-discharge results with the electrolyte 1 M LiTFSI in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl...

the reaction of tertiary, secondary and benzylic alcohols with different nitriles in the presence of alumina-methanesulfonic acid (ama) as a new reagent affords the corresponding amides in good yields (table 1, 2). conversion of 2,6-bis(hydroxymethyl)-4-halo anisoles into corresponding diamides in the range of 68-76% yields (table 3) are also included in this paper.

A sustainable and energy efficient indole amide synthesis with a supreme ecological footprint as calculated by E -factor, process mass intensity atom economy.