摘要:
Neue 2,2'-Diaminobiaryle der Formel (I), (II) und (III), wobei R1-R10, R1 '- R10', X1-X3 und X1 -X3' wie in Anspruch 1 definiert sind, und elektrochemisches Verfahren zur deren Herstellung
摘要:
An optically active amino acid derivative is prepared either by subjecting an optically active 3-haloalanine derivative (1) to N-protection followed by cyclization or cyclization followed by N-protection to prepare an optically active aziridinecarboxylic acid derivative (3) whose imino group is protected with 2- and/or 4-nitrated benzenesulfonyl and treating this derivative (3) with an organometallic reagent or by subjecting an optically active 3-haloalanine derivative to N-protection to obtain an optically active 3-haloalanine derivative (4) whose amino group is protected with 2- and/or 4-nitrated benzenesulfonyl and treating this derivative (4) with an organometallic reagent. According to such processes, natural and nonnatural optically active amino acids can be prepared from inexpensive raw materials through simple and easy operation. In said derivatives, X is halogen; R and R are each hydrogen or the like; represents an asymmetric carbon atom; and P is 2- and/ or 4- nitrated benzenesulfonyl.
摘要:
Disclosed is a method for the preparation of a fluorosulfonyl imide monomer of the structure represented by formula (IV), wherein X is F or perfluoroalkyl having 1-4 carbons optionally substituted by ether oxygen, M is an alkali or alkaline earth metal when y is respectively 1 or 2, R is aryl, fluoro-aryl, or XCF2- where X is H, halogen, fluorinated or non-fluorinated linear or cyclic alkyl having 1-10 carbons, optionally substituted by one or more ether oxygens. Such monomers are useful for forming ionomers useful in electrochemical applications such as batteries, fuel cells, electrolysis cells, ion exchange membranes, sensors, electrochemical capacitors, strong acid catalysts, and modified electrodes.
摘要:
beta -azidoethane sulfonylazide having the formula N3CH2CH2SO2N3 is disclosed, as well as a process for preparing the same and its use in processes for preparing taurinamide or taurolidine extracted from taurinamide in a manner known per se.
摘要:
The present invention relates to chemical compounds of formula (I), with the substituents as described in the specification, useful in the positive modulation of the alpha 7 nicotinic acetylcholine receptor (α7 nAChR). The invention also relates to the use of these compounds in the treatment or prevention of a broad range of diseases in which the positive modulation of α7 nAChR is advantageous, including neurodegenerative and neuropsychiatric diseases and also neuropathic pain and inflammatory diseases.
摘要:
La présente invention concerne un procédé de préparation d'un composé sulfonimide de formule (Rf 1 -SO 2 )(Rf 2 -SO 2 )NH aqueux, Rf 1 et Rf 2 étant indépendamment l'un de l'autre choisi dans le groupe constitué de : l'atome de fiuor et des groupes ayant de 1 à 10 atomes de carbone étant choisis parmi les groupes perfluoroalkyles, fluoroalkyles, fluoroalkényies et fluoroallyles, à partir d'un mélange M1 comprenant (Rf 1 -SO 2 )(Rf 2 - SO 2 )NH, Rf 1 SO 2 H et/ou Rf 2 SO 2 H, Rf 1 SO 2 NH 2 et/ou Rf 2 SO 2 NH 2 , et caractérisé en ce qu'il comprend une étape d'oxydation dudît mélange M1 par un agent oxydant, pour obtenir un mélange M2 comprenant (Rf 1 -SO 2 )(Rf 2 -SO 2 )NH, Rf 1 SO 3 H et/ou Rf 2 SO 3 H, et Rf 1 SO 2 NH 2 et/ou Rf 2 SO 2 NH 2 .
摘要:
This invention encompasses novel methods of preparing sulfinamides and sulfoxides, particularly stereomerically pure sulfinamides and sulfoxides. The invention further encompasses novel compounds from which sulfinamides and sulfoxides can be prepared.
摘要:
This invention encompasses novel methods of preparing sulfinamides and sulfoxides, particularly stereomerically pure sulfinamides and sulfoxides. The invention further encompasses novel compounds from which sulfinamides and sulfoxides can be prepared.