53173-72-1Relevant articles and documents
Bifunctional Fluoroalcohol Catalysts Enabled Sustainable Synthesis of Poly(amino acid)s?
He, Wenjing,Tao, Youhua
supporting information, p. 2119 - 2124 (2021/06/16)
A series of novel bifunctional single-molecule hydrogen-bonding organocatalysts based on fluorinated tertiary alcohol were synthesized to mediate the metal-free polymerization of α-amino acid N-carboxyanhydride (NCA) monomer. Through the screening of catalysts, the polymerization catalyzed by the preferred bifunctional fluoroalcohol catalyst proceeded in a fast and controlled manner, affording high molecular weight polypeptide up to 35.2 × 104 Da with relatively narrow molecular weight distribution (? 1.20). A phenomenon of self-accelerating effect of polymerization induced by α-helical structure of polypeptides was observed, and a possible polymerization pathway has been discussed.
Syntheses and lipophilicities of tetraarylborate ions substituted with many trifluoromethyl groups
Fujiki, Kanji,Kashiwagi, Mitsuyoshi,Miyamoto, Hideyuki,Sonoda, Akinari,Ichikawa, Junji,et al.
, p. 307 - 321 (2007/10/02)
Syntheses were investigated using various tetraarylborate ions with a large number of trifluoromethyl groups: tetrakisborate; tetrakisborate; tetrakisborate; and tetrakisborate ions.The preparation of Grignard reagents and the subsequent reaction with boron trifluoride etherate are importantsteps for a higher yield and easier isolation of the product.Sodium- and tetramethylammonium salts of these borate ions are soluble in halocarbon solvents such as dichloromethane, chloroform and 1,2-dibromotetrafluoroethane.
PERFLUOROALKYLATION OF BENZENE DERIVATIVES. AN IMPROVED SYNTHESIS OF 1,3-BIS(2-HYDROXYHEXAFLUORO-2-PROPYL)-5-(PERFLUORO-n-ALKYL)BENZENES
Sepiol, Janiusz,Soulen, Robert L.
, p. 61 - 74 (2007/10/02)
A three-step high yield synthesis of various 1,3-bis(2-hydroxyhexafluoro-2-propyl)-5-perfluoro-n-alkyl) benzenes is described.Significant improvements in the iodination and perfluoro-alkylation of a perfluoroalkylbenzene diol have been achieved.Copper coupling of straight-chain perfluoroalkyl iodides with the iodobenzene derivative in DMSO gave the desired compounds as DMSO complexes in 78-91 percent yield.