摘要:
In some aspects, the present disclosure provides methods of aminating an aromatic compound comprising reacting an aminating agent with an aromatic compound in the presence of a rhodium catalyst. In some embodiments, the methods may comprise aminating an aromatic compound which contains multiple different functional groups. The methods described herein may also be used to create bicyclic system comprising reacting an intramolecular aminating agent with an aromatic ring to obtain a second ring containing a nitrogen atom. In another aspect, the methods described herein may also be used to create a cyclic aliphatic cyclic/poly cyclic amine system comprising a reacting an intramolecular aminating agent by insertion into a C(sp3)-H bond.
摘要:
The invention relates to the field of the organic chemistry and, in particular to a method for preparing a compound of formula (I) or (II), and/or a mixture of isomers thereof, wherein R is -Alk, -AlkN(Alk) 2 , -AlkN(Ar) 2 , -AlkNAlkAr, -AlkOH, -AlkOAlk, -AlkOAr, -AlkSAlk, -AlkSAr, or -Ar; R 1 , R 2 , R 3 , and R 4 are independently -Alk, -Hal, - OH, -OAlk, -OAr, -SAlk, -SAr, or -NR 2 , wherein R is -Alk, - AlkN(Alk) 2 , -AlkN(Ar) 2 , -AlkNAlkAr, -AlkOH, -AlkOAlk, -AlkOAr, -AlkSAlk, -AlkSAr, or -Ar, wherein Alk is C 1 - C 16 alkyl, C 3 -C 16 cycloalkyl, C 2 -C 16 alkenyl, C 2 -C 16 alkynyl; Ar is phenyl; Hal is halogen selected from -Cl, -Br, and -I,
摘要:
Es wird eine optoelektronische Vorrichtung angegeben, welche zumindest einen Wellenlängenkonversionsbereich (1) aufweist, der zumindest einen dualen Emitter als Wellenlängenkonversionsstoff (2) umfasst, wobei der Wellenlängenkonversionsbereich (1) eine Primärstrahlung zumindest teilweise in eine Sekundärstrahlung überführt und wobei der duale Emitter einen ersten und einen zweiten elektronischen Grundzustand, sowie einen ersten elektronisch angeregten Zustand und einen aus dem ersten elektronisch angeregten Zustand erreichbaren zweiten elektronisch angeregten Zustand aufweist, und der duale Emitter eine Emission ausgehend von dem zweiten elektronisch angeregten Zustand in den zweiten Grundzustand aufweist. Weiterhin betrifft die Erfindung die Verwendung eines dualen Emitters als Wellenlängenkonversionsstoff in einer optoelektronischen Vorrichtung.
摘要:
An organometallic complex of a tridentate bis(phosphine)-carbodicarbene ligand and a transition metal, is described. In some embodiments the ligand has the structure of Formula (I): The complexes are useful in methods of making an allylic amine carried out by reacting a 1,3-diene with a substituted amine in the presence of such an organometallic complex to produce by intermolecular hydroamination the allylic amine.
摘要:
Disclosed is a process for preparing a primary, a secondary or a tertiary amine via the direct amination of an alcohol in the presence of a catalyst. The catalyst is composed of palladium or a palladium compound and a cerium oxide supporter.
摘要:
The invention relates to a metallocene complex according to formula (1) M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, X is a cyclic bridging group that is bonded to a carbon atom of the cyclopentadienyl ligand and to nitrogen, Z 1 and Z 4 are identical or different and can be chosen from hydrogen or a hydrocarbon radical with 1-20 carbon atoms; Z 2 and Z 3 are connected to form an indenyl or tetrahydroindenyl ring system and R is chosen from hydrogen or a hydrocarbon radical with 1-20 carbon atoms. Also claimed are compositions comprising the metallocene complex, a process for the preparation, a process for the polymerization of olefin polymers in the presence of the metallocene complex. A more specific embodiment of the above Markush formula is formula (5).
摘要:
The method relates to the field of asymmetric allylic amination and comprises preparing a chiral N-substituted allylic amine compound from the corresponding allylic substrates and substituted hydroxylamines, in the presence of a catalyst, said catalyst comprising copper compounds and a chiral ligand. Examples of chiral amine compounds which can be made using the method include Vigabatrin, Ezetimibe Terbinafme, Naftifme 3-methylmorphine, Sertraline, Cinacalcet, Mefloquine hydrochloride, and Rivastigmine. There are over 20,000 known bioactive molecules with chiral N-substituted allylic amine substructure. The method may also be used to produce non-natural chiral B-aminoacid esters, a sub-class of chiral N-substituted allylic amine compounds. Examples of B-aminoacid ester which can be produced by the disclosed method, include, but are not limited to, N-(2-methylpent-l-en-3-yl)benzenamine and Ethyl 2-methylene-3-(phenylamino)butanoate. Further, the products of the method described herein can be used to produce chiral heterocycles and bioactive molecules or materials.