Water-soluble cavitands promote hydrolyses of long-chain diesters
نویسندگان
چکیده
منابع مشابه
Water-soluble cavitands promote hydrolyses of long-chain diesters.
Water-soluble, deep cavitands serve as chaperones of long-chain diesters for their selective hydrolysis in aqueous solution. The cavitands bind the diesters in rapidly exchanging, folded J-shape conformations that bury the hydrocarbon chain and expose each ester group in turn to the aqueous medium. The acid hydrolyses in the presence of the cavitand result in enhanced yields of monoacid monoest...
متن کاملFolded alkyl chains in water-soluble capsules and cavitands.
A deep cavitand with ionic "feet" dimerizes around hydrophobic compounds in D2O. Longer n-alkane guests, C14-C18, are encapsulated in contorted conformations and NMR is used to deduce their shapes. Competition experiments establish the driving forces involved and how they compensate for the steric clashes in the folded structures of the encapsulated alkanes. Bolaamphiphiles instead prefer to bi...
متن کاملAntimicrobial activity of long-chain, water-soluble, dendritic tricarboxylato amphiphiles.
OBJECTIVES To measure the antimicrobial activities of three series of homologous, dendritic tricarboxylato (three-headed) amphiphiles against a battery of bacteria and fungi. METHODS Three series of homologous dendritic amphiphiles were synthesized containing C13 to C22 fatty chains. Susceptibility of Escherichia coli, Klebsiella pneumoniae, Lactobacillus plantarum, Micrococcus luteus, Staphy...
متن کاملStructures of langmuir-gibbs films consisting of long-chain fatty acid and water-soluble surfactants.
The structures of Langmuir-Gibbs (LG) films at the air-solution interface were studied using surface tensiometry, Brewster angle microscopy (BAM), and infrared external reflection spectroscopy (IR-ERS). The LG films were fabricated by forming Langmuir films of deuterated arachidic acid (D19A) and then injecting a water-soluble surfactant, sodium dodecyl sulfate or octaethylene glycol monododecy...
متن کاملSynthesis and Characterization of Some long-Chain Diesters with Branched or Bulky Moieties
central diol and diacid moieties were selected that bear structural resemblance (e.g., neopentyl glycol and 3,3,-dimethyl glutaric acid). Scheme I and Table I provide information on the exact nature of the compounds studied here. The compounds arising from the reaction of monoacids with diols will be termed diol dies tel's and those deri ved from diacids with monohydric alcohols will be termed ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2016
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1610006113