Category: 118864-75-8

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Safety of (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 118864-75-8, Name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, molecular formula is C15H15N

Enhancing effects of salt formation on catalytic activity and enantioselectivity for asymmetric hydrogenation of isoquinolinium salts by dinuclear halide-bridged iridium complexes bearing chiral diphosphine ligands

Asymmetric hydrogenation of 1- and 3-substituted and 1,3-disubstituted isoquinolinium chlorides using triply halide-bridged dinuclear iridium complexes [{Ir(H)(diphosphine)} 2(mu -Cl)3]Cl has been achieved by the strategy of HCl salt formation of isoquinolines to afford the corresponding chiral 1,2,3,4-tetrahydroisoquinolines (THIQs) in high yields and with excellent enantioselectivities after simple basic workup. The effects of salt formation have been investigated by time-course experiments, which revealed that the generation of isoquinolinium chlorides clearly prevented formation of the catalytically inactive dinuclear trihydride complex, which was readily generated in the catalytic reduction of salt-free isoquinoline substrates. Based on mechanistic investigations, including by 1H and 31P{1H} NMR studies and the isolation and characterization of several intermediates, the function of the chloride anion of the isoquinolinium chlorides has been elucidated, allowing us to propose a new outer-sphere mechanism involving coordination of the chloride anion of the substrates to an iridium dihydride species along with a hydrogen bond between the chloride ligand and the N-H proton of the substrate salt.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Safety of (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 118864-75-8, in my other articles.

Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Formula: C15H15N, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 118864-75-8, name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline. In an article，Which mentioned a new discovery about 118864-75-8

One-pot racemization process of 1-Phenyl-1,2,3,4-tetrahydroisoquinoline: A key intermediate for the antimuscarinic agent solifenacin

(S)-(+)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, which is the key intermediate in preparing the urinary antispasmodic drug solifenacin, was racemized in quantitative yield by a simple one-pot procedure through N-chlorination with trichloroisocyanuric acid, conversion of the N-chloroamine into the imine hydrochloride, and reduction of the imine double bond. The racemized amine was successfully resolved by d-(-)-tartaric acid obtaining (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline in 81% yield and with 96.7% ee and, from the crystallization mother liquors, the R enriched form. This was racemized by the same one-pot process and resolved by d-(-)-tartaric acid with the same efficiency. Such an approach to the racemization of 1-phenyl-1,2,3,4- tetrahydroisoquinoline can be industrially useful to recycle the waste R enantiomer resulting from the classical resolution used to obtain the S enantiomer on a large scale.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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Process for preparing polymorphic forms of solifenacin succinate

Polymorphic forms of solifenacin have been prepared and characterized. These polymorphic forms are particularly useful in pharmaceutical compositions.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 118864-75-8, name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, introducing its new discovery. Formula: C15H15N

Stereoselective Total Syntheses of Solifenacin and N -Acetyl-1-(4-chloro-phenyl)-6,7-dimethoxytetrahydroisoquinoline

A highly stereoselective synthesis of 1-aryl-1,2,3,4-tetrahydroisoquinoline drugs such as solefinacin (muscarinic acetylcholine receptor antagonist) and N-acetyl-1-(4-chlorophenyl)-6,7-dimethoxytetrahydroisoquinoline (AMPA receptor antagonist) has been accomplished using (R)-tert-butanesulfinamide as a chiral source. Chiral tetrahydroisoquinolines have been prepared through the aryl Grignard addition to chiral N-sulfinylimines followed by haloamide cyclization.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, SDS of cas: 118864-75-8, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 118864-75-8, Name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, molecular formula is C15H15N

Directed evolution of artificial metalloenzymes: Genetic optimization of the catalytic activity

Artificial metalloenzymes (ArMs) based on the incorporation of a biotinylated metal cofactor within a streptavidin (Sav) combine attractive features of both enzymatic and homogeneous catalysis. To speed up their optimization, we present a directed evolution of an artificial transfer hydrogenase (ATHase) based on a streamlined and optimized protocol for the design, overexpression and screening of Sav isoforms. Ten positions have been subjected to mutagenesis to yield two variants with improved catalytic activity and selectivity for the reduction of cyclic imines, along with greater stability in a biphasic medium.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 118864-75-8, name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, introducing its new discovery. Safety of (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline

Genetic Engineering of an Artificial Metalloenzyme for Transfer Hydrogenation of a Self-Immolative Substrate in Escherichia coli’s Periplasm

Artificial metalloenzymes (ArMs), which combine an abiotic metal cofactor with a protein scaffold, catalyze various synthetically useful transformations. To complement the natural enzymes’ repertoire, effective optimization protocols to improve ArM’s performance are required. Here we report on our efforts to optimize the activity of an artificial transfer hydrogenase (ATHase) using Escherichia coli whole cells. For this purpose, we rely on a self-immolative quinolinium substrate which, upon reduction, releases fluorescent umbelliferone, thus allowing efficient screening. Introduction of a loop in the immediate proximity of the Ir-cofactor afforded an ArM with up to 5-fold increase in transfer hydrogenation activity compared to the wild-type ATHase using purified mutants.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

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PROCESS FOR PREPARING (1S)-1-PHENYL-3,4-DIHYDRO-2(1H)-ISOQUINOLINE-CARBOXYLATE

A process for preparation of (1S)-1-phenyl-3,4-dihydro-2(1H)-isoquinoline-carboxylate (Formula I), comprising reacting (1S)-1-phenyl-3,4-dihydro-2(1H)isoquinoline (Formula II) with carbon dioxide and an alkylating agent R-LG in the presence of a base to obtain the compound of Formula I in an organic solvent. In Formula I and II, R is an alkyl or a substituted alkyl; LG is a leaving group.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Synthetic Route of 118864-75-8, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.118864-75-8, Name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, molecular formula is C15H15N. In a article，once mentioned of 118864-75-8

The present disclosure provides a reaction of a chlorine-containing compound using a flow reactor which is less restricted by a solvent to be used. In the present disclosure, an organic compound is produced by supplying a reaction substrate having at least one functional group which can react with chlorine and is selected from the group consisting of hydroxy group, a thiol group, an amino group, a carboxyl group, a thiocarboxyl group, and an acid amide group, and a chlorine-containing compound to a flow reactor together with a trialkyl amine having 9 to 40 carbon atoms and an organic solvent, and allowing the reaction substrate and the chlorine-containing compound to react with each other.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 118864-75-8

Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

118864-75-8, Name is (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, belongs to tetrahydroisoquinoline compound, is a common compound. Computed Properties of C15H15NIn an article, once mentioned the new application about 118864-75-8.

Enantioselective synthesis of 1-aryl-tetrahydroisoquinolines through iridium catalyzed asymmetric hydrogenation

Asymmetric hydrogenation of 1-aryl-3,4-dihydroisoquinolines using the [IrCODCl]2/(R)-3,5-diMe-Synphos catalyst is reported. Under mild reaction conditions, this atom-economical process provides easy access to a variety of enantioenriched 1-aryl-1,2,3,4-tetrahydroisoquinoline derivatives, which are important pharmacophores found in several pharmaceutical drug candidates, in high yields and enantiomeric excesses up to 99% after a single crystallization.

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Electric Literature of 118864-75-8, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, and a compound is mentioned, 118864-75-8, (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline, introducing its new discovery.

A highly efficient and enantioselective access to tetrahydroisoquinoline alkaloids: Asymmetric hydrogenation with an iridium catalyst

Efficient and enantioselective: Using the iodine-bridged dimeric iridium complex [{Ir(H)[(S,S)-(f)-binaphane]}2(mu-I)3] +I- (1) a wide range of tetrahydroisoquinoline alkaloids, including the substructure of the pharmaceutical drug solifenacin, were obtained with excellent enantioselectivities and high turnover numbers (see scheme). Copyright

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Reference：
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem