5658-49-1Relevant articles and documents
Dimension-controlled assemblies of modified bipyrroles stabilized by electron-withdrawing moieties
Nakamura, Kazuto,Yasuda, Nobuhiro,Maeda, Hiromitsu
, p. 7157 - 7160 (2016)
Benzoyl-substituted bipyrroles possessing aliphatic chains were synthesized and formed a variety of dimension-controlled assembled structures as mesophases through various intermolecular interactions.
Magnetic CuFe2O4nanoparticles: A retrievable catalyst for oxidative amidation of aldehydes with amine hydrochloride salts
Suresh Kumar,Thulasiram,Bala Laxmi,Rawat, Vikas S.,Sreedhar
supporting information, p. 6059 - 6067 (2014/12/10)
The application of magnetic CuFe2O4nanoparticles for the oxidative amidation of aldehydes with amine hydrochloride salts is described. A wide range of amides have been synthesized in good to excellent yields under mild conditions. Chiral amide also synthesized from its corresponding chiral amine salt with retention of the stereochemistry. In particular, the performance of the magnetic separation of the catalyst was very efficient and an alternative to time, solvent and energy-consuming separation procedures. The catalytic activity of the catalyst remains unaltered after five consecutive cycles, making it environmentally benign and widely applicable due to its efficiency, ease of handling and cost effectiveness.
A direct and mild conversion of tertiary aryl amides to methyl esters using trimethyloxonium tetrafluoroborate: A very useful complement to directed metalation reactions
Keck, Gary E,McLaws, Mark D,Wager, Travis T
, p. 9875 - 9883 (2007/10/03)
The scope and generality of a direct process for the conversion of tertiary amides directly to methyl esters has been investigated. The process involves a two-step, one pot procedure in which a tertiary amide is first treated with trimethyloxonium tetrafluoroborate to generate an imidate intermediate which is then hydrolyzed, generally by the addition of saturated aqueous sodium bicarbonate solution. Although this process fails for aliphatic amides, very good yields are realized for a variety of amides derived from aromatic carboxylic acids. Steric hindrance at the N-alkyl group is well tolerated; thus N,N-dimethyl, -diethyl, and -diisopropyl amides can all be utilized successfully. (C) 2000 Elsevier Science Ltd.