Author: tianli

Chemical Research Letters, May 2021. Research speed reading in 2021. Related Products of 1745-07-9, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 1745-07-9, Name is 6,7-Dimethoxy-1,2,3,4-tetrahydroisoquinoline, molecular formula is C11H15NO2. In a Article，once mentioned of 1745-07-9

13C NMR resonances of 15 simple tetrahydroisoquinolines have been assigned on the basis of chemical shift theory, 13C-1H coupling constants and deuterium labelling at specific positions.The chemical shifts of both aliphatic and aromatic protons were correlated with substituent effects. – Key Words : 13C NMR spectra; cactus alkaloids; simple tetrahydroisoquinolines; carnegine; heliamine; lemaireocereine; longimammatine; lophophorine; N-methylanhalinine; O-methylcorypalline; O-methyluberine; nortehuanine; tehuanine; weberidine.

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

Chemical Research Letters, May 2021. Research speed reading in 2021. SDS of cas: 1612-65-3, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 1612-65-3, Name is 2-Methyl-1,2,3,4-tetrahydroisoquinoline, molecular formula is C10H13N. In a Article，once mentioned of 1612-65-3

Formation of borane complexes of N,N-dimethylbenzylamine 4 and N-methyltetrahydroisoquinoline 1 facilitates regioselective metallation of these systems using BuLi, giving benzylic anions which react with a range of electrophiles.

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

Chemical Research Letters, May 2021. Research speed reading in 2021. Product Details of 799274-08-1, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. 799274-08-1, Name is 6-Fluoro-1,2,3,4-tetrahydroisoquinoline hydrochloride, molecular formula is C9H11ClFN. In a Patent，once mentioned of 799274-08-1

The application relates to 2-amino-4-(substituted amino)phenyl carbamate derivatives, or pharmaceutically acceptable salts or solvates thereof, as KCNQ2/3 potassium channel modulators, and methods of their uses.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Product Details of 799274-08-1, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 799274-08-1, in my other articles.

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

New discoveries in chemical research and development in 2021. In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Safety of 7-Nitro-1,2,3,4-tetrahydroisoquinoline, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 42923-79-5, name is 7-Nitro-1,2,3,4-tetrahydroisoquinoline. In an article，Which mentioned a new discovery about 42923-79-5

The sigma-2 (sigma2) receptor has been suggested to be a promising target for pharmacological interventions to curb tumor progression. Development of sigma2-specific ligands, however, has been hindered by lack of understanding of molecular determinants that underlie selective ligand-sigma2 interactions. Here we have explored effects of electron donating and withdrawing groups on ligand selectivity for the sigma2 versus sigma1 receptor using new benzamide-isoquinoline derivatives. The electron-donating methoxy group increased but the electron-withdrawing nitro group decreased sigma2 affinity. In particular, an extra methoxy added to the para-position (5e) of the benzamide phenyl ring of 5f dramatically improved (631 fold) the sigma2 selectivity relative to the sigma1 receptor. This para-position provided a sensitive site for effective manipulation of the sigma receptor subtype selectivity using either the methoxy or nitro substituent. Our study provides a useful guide for further improving the sigma2-over-sigma1 selectivity of new ligands.

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

Research speed reading in 2021. An article , which mentions Reference of 3340-78-1, molecular formula is C15H15N. The compound – 2-Phenyl-1,2,3,4-tetrahydroisoquinoline played an important role in people’s production and life., Reference of 3340-78-1

Oxidative cyanation of sp3 C-H bonds at the alpha position of tertiary amines by using TMSCN as the cyanide donor and a novel high-valent rhenium(V) complex was developed. The reaction offers the corresponding alpha-aminonitriles in good yields with tert-butyl hydroperoxide as the oxidant under mild and acid-free reaction conditions. Oxidative cyanation of sp3 C-H bonds at the alpha position of tertiary amines by using TMSCN as the cyanide donor and novel high-valent rhenium(V) complex catalysts is developed. The reactions offer the corresponding alpha-aminonitriles in good yields by using tert-butyl hydroperoxide as the oxidant under mild and acid-free reaction conditions at room temperature. Copyright

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

Research speed reading in 2021. An article , which mentions 1612-65-3, molecular formula is C10H13N. The compound – 2-Methyl-1,2,3,4-tetrahydroisoquinoline played an important role in people’s production and life., 1612-65-3

The imine reductase AoIRED from Amycolatopsis orientalis (Uniprot R4SNK4) catalyzes the NADPH-dependent reduction of a wide range of prochiral imines and iminium ions, predominantly with (S)-selectivity and with ee’s of up to >99%. AoIRED displays up to 100-fold greater catalytic efficiency for 2-methyl-1-pyrroline (2MPN) compared to other IREDs, such as the enzyme from Streptomyces sp. GF3546, which also exhibits (S)-selectivity, and thus, AoIRED is an interesting candidate for preparative synthesis. AoIRED exhibits unusual catalytic properties, with inversion of stereoselectivity observed between structurally similar substrates, and also, in the case of 1-methyl-3,4-dihydroisoquinoline, for the same substrate, dependent on the age of the enzyme after purification. The structure of AoIRED has been determined in an “open” apo-form, revealing a canonical dimeric IRED fold in which the active site is formed between the N- and C-terminal domains of participating monomers. Co-crystallization with NADPH gave a “closed” form in complex with the cofactor, in which a relative closure of domains, and associated loop movements, has resulted in a much smaller active site. A ternary complex was also obtained by cocrystallization with NADPH and 1-methyl-1,2,3,4-tetrahydroisoquinoline [(MTQ], and it reveals a binding site for the (R)-amine product, which places the chiral carbon within 4 A of the putative location of the C4 atom of NADPH that delivers hydride to the Ci -N bond of the substrate. The ternary complex has permitted structure-informed mutation of the active site, resulting in mutants including Y179A, Y179F, and N241A, of altered activity and stereoselectivity.

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

New discoveries in chemical research and development in 2021. Related Products of 170097-67-3, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 170097-67-3, Name is 2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid, molecular formula is C15H19NO4. In a Patent，once mentioned of 170097-67-3

The present invention relates to substituted 3-Aminopyrazole compounds of formula (I) and pharmaceutically acceptable salts thereof, to pharmaceutical compositions containing them and their use in medicine. In particular, the invention relates to compounds for modulating SCD activity.

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

New discoveries in chemical research and development in 2021. In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Computed Properties of C9H10N2O2, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 42923-79-5, name is 7-Nitro-1,2,3,4-tetrahydroisoquinoline. In an article，Which mentioned a new discovery about 42923-79-5

The invention relates to a substituted amidine derivative which has an excellent platelet aggregation inhibiting action on the basis of fibrinogen antagonism and is particularly excellent in effectiveness on oral administration, and the platelet aggregation inhibitor containing the substituted amidine derivative of the invention as an effective ingredient is effective for prevention and remedy of thrombosis, and restenosis or reocclusion after percutaneous transluminal coronary angioplasty or percutaneous transluminal coronary recanalization.

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

Related Products of 151004-92-1, New Advances in Chemical Research, May 2021. Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 151004-92-1, Name is (S)-1,2,3,4-Tetrahydroisoquinoline-1-carboxylic acid,introducing its new discovery.

A dynamic kinetic resolution method for the preparation of enantiopure 1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid (R)-2 was developed involving the CAL-B-catalyzed enantioselective hydrolysis of the corresponding ethyl ester (±)-1 in toluene/acetonitrile (4:1) containing 1 equiv of added water and 0.25 equiv of dipropylamine. This method allowed the preparation of (R)-2 (ee = 96%) with 80% isolated yield. The kinetic resolution of (±)-1 in diisopropyl ether at 3 C afforded both enantiomers with ee ?92%.

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

Research speed reading in 2021. Synthetic Route of 3340-78-1, Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, new energy materials, preparation and modification of special coatings. 3340-78-1, Name is 2-Phenyl-1,2,3,4-tetrahydroisoquinoline, molecular formula is C15H15N. In a Article，once mentioned of 3340-78-1

Four phosphorescent platinum(II) Schiff base complexes are screened for application in visible-light-induced cross-dehydrogenative coupling (CDC) reactions. Preliminary studies show that, among the four platinum(II) complexes, Pt3 is an efficient catalyst for CDC reactions with oxygen as an oxidant. Light irradiation (lambda>420 nm) on a mixture of the PtII complex, tertiary amine, and a variety of nucleophiles (nitroalkanes, ketones, or indoles) under aerobic conditions gives alpha-functionalized tertiary amines in good to excellent yields. The photoluminescence quenching experiment reveals that the CDC reaction is initiated by photoinduced electron transfer from N-phenyltetrahydroisoquinoline to the PtII complex. Further, electron spin resonance (ESR) measurements clearly indicate the formation of superoxide radical anions (O2.-) rather than singlet oxygen (1O2) during the photocatalytic reaction.

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