Category: 4721-98-6

4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, belongs to isoquinoline compound, is a common compound. COA of Formula: C12H15NO2In an article, once mentioned the new application about 4721-98-6.

The reaction of 1-ethylidene-2-formyl-1,2,3,4-tetrahydroisoquinolines 4a and 4b, or 1-ethyl-3,4-dihydroisoquinolines 3a and 3b, with benzyne led, by a formal 3+2 cycloaddition, to dibenzindolizines 5a and 5b, respectively.Compound 5b was also synthesized by photocyclization of enamine 6.

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Synthetic Route of 4721-98-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, molecular formula is C12H15NO2. In a Article，once mentioned of 4721-98-6

Imine reductases (IREDs) have recently become a primary focus of research in biocatalysis, complementing other classes of amine-forming enzymes such as transaminases and amine dehydrogenases. Following in the footsteps of other research groups, we have established a set of IRED biocatalysts by sequence-based in silico enzyme discovery. In this study, we present basic characterisation data for these novel IREDs and explore their activity and stereoselectivity using a panel of structurally diverse cyclic imines as substrates. Specific activities of >1 U/mg and excellent stereoselectivities (ee>99 %) were observed in many cases, and the enzymes proved surprisingly tolerant towards elevated substrate loadings. Co-expression of the IREDs with an alcohol dehydrogenase for cofactor regeneration led to whole-cell biocatalysts capable of efficiently reducing imines at 100 mM initial concentration with no need for the addition of extracellular nicotinamide cofactor. Preparative biotransformations on gram scale using these ?designer cells? afforded chiral amines in good yield and excellent optical purity.

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Isoquinoline – Wikipedia,
Isoquinoline | C9H2771N – PubChem

Electric Literature of 4721-98-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, molecular formula is C12H15NO2. In a Article，once mentioned of 4721-98-6

13-Alkyl and 13-aryl substituted 8-oxoprotoberberines were obtained by interamolecular benzyne cycloaddition of isoquinolinopyrrolinediones with arynes.This convergent and highly regioselective reaction has been applied to the synthesis of (+/-)-corydaline.

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Isoquinoline – Wikipedia,
Isoquinoline | C9H2744N – PubChem

Application of 4721-98-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, molecular formula is C12H15NO2. In a Patent，once mentioned of 4721-98-6

The present invention is directed to certain quinoline and isoquinoline compounds that are PDElO inhibitors, pharmaceutical compositions containing such compounds and processes for preparing such compounds. The invention is also directed to methods of treating diseases mediated by PDElO enzyme, such as obesity, non-insulin dependent diabetes, schizophrenia, bipolar disorder, obsessive-compulsive disorder, and the like.

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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H2594N – PubChem

Electric Literature of 4721-98-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, molecular formula is C12H15NO2. In a Article，once mentioned of 4721-98-6

A new imine reductase from Stackebrandtia nassauensis (SnIR) was identified, which displayed over 25- to 1400-fold greater catalytic efficiency for 1-methyl-3,4-dihydroisoquinoline (1-Me DHIQ) compared to other imine reductases reported. Subsequently, an efficient SnIR-catalyzed process was developed by simply optimizing the amount of cosolvent, and up to 15 g L-1 1-Me DHIQ was converted completely without a feeding strategy. Furthermore, the reaction proceeded well for a panel of dihydroisoquinolines, affording the corresponding tetrahydroisoquinolines (mostly in S-configuration) in good yields (up to 81%) and with moderate to excellent enantioselectivities (up to 99% ee).

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Isoquinoline – Wikipedia,
Isoquinoline | C9H2689N – 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, 4721-98-6, name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, introducing its new discovery. COA of Formula: C12H15NO2

Friedel-Crafts acylation of N-acetylhomoveratrylamine in a molar ratio of 1:2:3 of 1, AlCl3 and the appropriate acid chloride using nitrobenzene as solvent gave the corresponding 2-acyl derivatives 2a-j in good yields.Subsequent treatment of 2 in boiling 1N-hydrochloric acid afforded a variety of 1-substituted 3,4-dihydro-6,7-dimethoxyisoquinolines 3a-j in almost quantitative yields.The dihydroisoquinolines 3h-j having carboxyalkyl groups at C1-position were further converted to the benzoquinolizine analogues 6h-j.

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Isoquinoline – Wikipedia,
Isoquinoline | C9H2727N – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. Safety of 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 4721-98-6

Silica nanoparticles equipped with an artificial imine reductase display remarkable activity towards cyclic imine- and NAD+ reduction. The method, based on immobilization and protection of streptavidin on silica nanoparticles, shields the biotinylated metal cofactor against deactivation yielding over 46000 turnovers in pure samples and 4000 turnovers in crude cellular extracts.

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Isoquinoline – Wikipedia,
Isoquinoline | C9H2658N – PubChem

Reference of 4721-98-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, molecular formula is C12H15NO2. In a Article，once mentioned of 4721-98-6

A series of palladium (and in some cases rhodium) catalysed regiospecific 5-exo-, 6-endo- and 6-exo-trig cyclisations of aryl iodides and vinyl bromides onto proximate alkenes or heteroaromatic rings (indole, pyrrole) lead to a wide variety of fused ring systems.In appropriate cases the methodology provides a facile approach to the creation of tetrasubstituted carbon centres.Double bond isomerisation in the product is only observed in a few cases.

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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

4721-98-6, Name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline, belongs to isoquinoline compound, is a common compound. Product Details of 4721-98-6In an article, once mentioned the new application about 4721-98-6.

The invention relates to novel 1,2,3,4-tetrahydroisoquinoline derivatives of formula (I) wherein R1, R2, R3 and X are as defined in the claims, and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more of those compounds and methods of treatment comprising administration of said compounds to a mammal.

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Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. category: isoquinoline, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 4721-98-6, name is 6,7-Dimethoxy-1-methyl-3,4-dihydroisoquinoline. In an article，Which mentioned a new discovery about 4721-98-6

A method for the annulation of amines and carboxylic acids to form pharmaceutically relevant azaheterocycles via organophosphorus PIII/PV redox catalysis is reported. The method employs a phosphetane catalyst together with a mild bromenium oxidant and terminal hydrosilane reductant to drive successive C-N and C-C bond-forming dehydration events via the serial action of a catalytic bromophosphonium intermediate. These results demonstrate the capacity of PIII/PV redox catalysis to enable iterative redox-neutral transformations in complement to the common reductive driving force of the PIII/PV couple.

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Reference：
Isoquinoline – Wikipedia,
Isoquinoline | C9H2681N – PubChem