Abstract:
Stereoselective and regioselective synthesis of compounds via nucleophilic ring opening reactions of aziridinium ions for use in stereoselective and regioselective synthesis of therapeutic and diagnostic compounds.
Abstract:
In one embodiment, the present application discloses mixtures comprising (a) water in an amount of at least 1% wt/wt of the mixture; (b) a transition metal catalyst; and (c) one or more solubilizing agents; and methods for using such mixtures for performing transition metal mediated bond formation reactions.
Abstract:
The invention relates to a process for producing compounds containing at least one arylamino group by means of a coupling reaction of an amino compound with an aryl compound, using a strong base.
Abstract:
A process is described for preparing aromatic and heteroaromatic amines of the general formula (I) Ar—NR1R2, in which an aromatic compound with the general formula (II) Ar—X is reacted in the presence of a catalyst with an amine of the general formula (III) H—NR1R2 and a base, wherein the catalyst is selected from transition metal complexes having one or more ligands with the general formula (IV).
Abstract:
A process is described for preparing aromatic and heteroaromatic amines of the general formula (I) Ar—NR1R2, in which an aromatic compound with the general formula (II) Ar—X is reacted in the presence of a catalyst with an amine of the general formula (III) H—NR1R2 and a base, wherein the catalyst is selected from transition metal complexes having one or more ligands with the general formula (IV).
Abstract:
Disclosed is a novel method of preparing a secondary amine compound using a microflow reactor. According to the method, a primary amine compound and a halide compound are allowed to react with each other in the microflow reactor, such that the production of a tertiary amine compound or an ammonium salt is minimized, whereby the secondary amine compound is efficiently prepared.
Abstract:
The invention relates to a process for the preparation of the compound of formula (I), which process comprises a) reacting a compound of formula (II), wherein X is chloro or bromo, with an organometallic species in an inert atmosphere to a halobenzyne of formula (X), reacting the halobenzyne of formula X so formed with cyclopentadiene to (III), b) reacting III in the presence of an inert solvent with an oxidant to (IV), c) reacing IV in the presence of a Lewis acid and a hydride source to (V), d) reacting V in the presence of an oxidizing agent, a base and an inert solvent to (VI), e) converting VI in the presence of a phosphane and CCL4 or CHCl3 to (VII), and either f1) reacting VII with NH3 in the presence of a catalyst to the compound of formula (VIII); and g) reacting VIII in the presence of a base with a compound of formula (IX), to the compound of formula (I); or f2) reacting the compound of formula (VII), in the presence of a solvent, a base, a copper catalyst and at least one ligand with the compound of formula (IXa), to the compound of formula (I).
Abstract:
The invention relates to methods for carbon-carbon bond forming reactions, carbon-nitrogen bond forming reactions and/or carbon-oxygen bond forming reactions using phosphonium borate compounds represented by the Formula: (R1)(R2)(R3)PH.BAr4, wherein R1, R2, R3, and Ar4 are as defined herein in combination with a transition metal, transition metal salt, transition metal oxide or transition metal complex.
Abstract:
An object is to provide a light-emitting element having high light-emission efficiency by provision of a novel fluorene derivative as represented by General Formula (G1) below. In the formula, R1 to R8 independently represent any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted biphenyl group. Further, α1 to α4 independently represent any of a substituted or unsubstituted arylene group having 6 to 12 carbon atoms. Furthermore, Ar1 and Ar2 independently represent any of an aryl group having 6 to 13 carbon atoms in a ring and Ar3 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms. J, k, m, and n each independently represent 0 or 1.
Abstract:
Improved methods for making hole transport molecules (HTMs) that are incorporated into imaging members, such as layered photoreceptor devices, to increase the photoreceptor's “hole mobility,” or its ability to move charge, across its charge transport layer (CTL). Embodiments pertain to a continuous process for making N,N-diphenyl-4-biphenylamine and a system for performing the same.