Month: February 2023

Photophysical properties of solutions of 6,7-dimethoxy-3,4-dihydroisoquinoline was written by Dubouski, V. L.;Gulyakevich, O. V.;Mikhal’chuk, A. L.;Raichenok, T. F.;Tikhomirov, S. A.;Tolstorozhev, G. B.. And the article was included in Optics and Spectroscopy in 2006.Formula: C11H13NO2 This article mentions the following:

The effect of acid-base interactions on the photophys. properties of 6,7-dimethoxy-3,4-dihydroisoquinoline in protic solvents is studied by the methods of steady-state and picosecond spectroscopy. The specific features of the spectral and luminescent properties of solutions of 6,7-dimethoxy-3,4-dihydroisoquinoline are connected with the presence of emission centers of 2 types-solvated initial mols. and their protonated cationic forms. Considerable long-wavelength shifts observed in the electronic absorption and fluorescence spectra of the cationic form of the mol. as compared to the spectra of its initial form are caused by the elongation of a conjugated chain present in the fragment of the mol. that separates the N atom and the O atoms of the methoxy groups. The transition of the cationic form of the mol. to an excited electronic state is not accompanied by a change in its dipole moment. In the experiment, the researchers used many compounds, for example, 6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1Formula: C11H13NO2).

6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1) belongs to isoquinoline derivatives. Quinoline and isoquinoline skeletons are among the most attractive frameworks with a wide range of biological and pharmacological activities. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.Formula: C11H13NO2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Glycosylation-induced asymmetric synthesis of 1-substituted tetrahydroisoquinolines was written by Allef, Petra;Kunz, Horst. And the article was included in Heterocycles in 2007.Recommanded Product: 3382-18-1 This article mentions the following:

Activation of imines by N-glycosylation and simultaneous diastereodifferentiation in reactions of the formed N-glycosyl iminium ions provide new stereoselective routes to 1-substituted tetrahydroisoquinolines. Pictet-Spengler reactions induced by N-galactosylation of β-arylethyl imines of aromatic aldehydes give 1-aryl tetrahydroisoquinolines with high stereoselectivity. Glycosylation-induced addition of dialkylzinc reagents to 3,4-dihydroisoquinoline furnish 1-alkyl-tetrahydroisoquinolines with excellent diastereoselectivity. In the experiment, the researchers used many compounds, for example, 6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1Recommanded Product: 3382-18-1).

6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1) belongs to isoquinoline derivatives. Quinoline and isoquinoline skeletons are among the most attractive frameworks with a wide range of biological and pharmacological activities. Isoquinoline-type alkaloids show biological activities similar to those of morphinane-, protoberberine-, and benzophenanthridine-type alkaloids.Recommanded Product: 3382-18-1

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Syntheses of nitrogen-containing heterocyclic compounds. XXVII. Isoquinoline, cyclization by the Bischler-Napieralski method was written by Sugasawa, Shigehiko;Shigehara, Hajime. And the article was included in Yakugaku Zasshi in 1942.HPLC of Formula: 394-67-2 This article mentions the following:

3,4-(MeO)₂C₆H₃(CH₂)₂NH₂, 3,4-(MeO)₂C₆H₃(CH₂)₃NH₂, and 3,4-(MeO)₂C₆H₃CH(OH)(CH₂)₂NH₂ are acylated with BzOH, veratric acid, 2,3,4-(MeO)₃C₆H₂CO₂H, etc., and the amides are heated in toluene with POCl₃ to effect ring closure to 1-substituted 3,4-dihydroisoquinolines. These are converted to methine bases by the Hofmann decomposition The neutral substances are obtained by the Emde decomposition and oxidized to benzophenonecarboxylic acid derivatives which are the same as products formed by the Friedel-Crafts condensation of m-hemipic anhydride and C₆H₆, veratrole, or pyrogallol tri-Me ether. This indicates that the isoquinoline ring closure always occurs at the para-position with reference to a MeO group at the 3-position of the acid amide and not at the ortho-position as stated by Pfeiffer, et al. (C.A. 34, 2383.3). In the experiment, the researchers used many compounds, for example, 4-Fluoroisoquinoline (cas: 394-67-2HPLC of Formula: 394-67-2).

4-Fluoroisoquinoline (cas: 394-67-2) belongs to isoquinoline derivatives. The isoquinoline structure occurs in a considerable number of alkaloids in widely separated plant families. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.HPLC of Formula: 394-67-2

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Determination of homopiperazine in fasudil hydrochloride by ion chromatography was written by Chen, Mei-lan;Zhang, Ting-ting;Ye, Ming-li;Huang, Qiao-qiao;Hu, Zhong-yang;Pan, Guang-wen. And the article was included in Yaowu Fenxi Zazhi in 2013.Recommanded Product: 105628-07-7 This article mentions the following:

A new method for the determination of homopiperazine in fasudil hydrochloride based on high-performance ion chromatog. was established. Fasudil hydrochloride was first dissolved in methane sulfonic acid, and then the solution was filtered through a 0.45 μm syringe membrane filter and Guard RP cleanup column before injection. The IC separation was performed on an IonPac CS17 (4 mm × 250 mm) column with 17 mmol · L^-1 methanesulfonic acid and acetonitrile (85:15) as the elution and a Cation MicroMembrane Suppressor (CMMS 300, 4 mm) as the suppression. The background was much reduced and the sensitivities of homopiperazine were greatly improved. Calibration curves of peak area vs. concentration showed a linear correlation coefficient of 0.9996 for homopiperazine in the range of 0.05-10 μg · mL^-1. Average recoveries were between 98.0%-102.0%. The established Ion chromatog. method has the advantages of high sensitivity, specificity and reproductivity, which can be applied to the limit amount determination of drug homopiperazine. In the experiment, the researchers used many compounds, for example, 5-((1,4-Diazepan-1-yl)sulfonyl)isoquinoline hydrochloride (cas: 105628-07-7Recommanded Product: 105628-07-7).

5-((1,4-Diazepan-1-yl)sulfonyl)isoquinoline hydrochloride (cas: 105628-07-7) belongs to isoquinoline derivatives. Quinoline and its derivatives are widely used as fungicides, biological agents, antibiotics, alkaloids, dyes, rubber chemicals and flavoring agents. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Recommanded Product: 105628-07-7

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Nitro-Mannich/lactamization cascades for the direct stereoselective synthesis of pyrrolidin-2-ones was written by Pelletier, Sophie M.-C.;Ray, Peter C.;Dixon, Darren J.. And the article was included in Organic Letters in 2009.Safety of 6,7-Dimethoxy-3,4-dihydroisoquinoline This article mentions the following:

An efficient three-component nitro-Mannich/lactamization cascade of Me 3-nitropropanoate with in situ formed acyclic imines for the direct preparation of pyrrolidinone derivatives has been developed. The reaction is easy to perform, broad in scope, and highly diastereoselective and may be extended to cyclic imines allowing the direct formation of polycyclic pyrrolidinone derivatives In the experiment, the researchers used many compounds, for example, 6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1Safety of 6,7-Dimethoxy-3,4-dihydroisoquinoline).

6,7-Dimethoxy-3,4-dihydroisoquinoline (cas: 3382-18-1) belongs to isoquinoline derivatives. Quinoline is a mancude organic heterobicyclic parent, an azaarene, an ortho-fused heteroarene and a member of isoquinolines. The discovery of chloroquine, the most well-known drug containing this stent, has helped bring about decades of malaria control and treatment.Safety of 6,7-Dimethoxy-3,4-dihydroisoquinoline

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Synthesis and anticancer activity of novel quinoline-docetaxel analogues was written by Chen, Ming;Chen, Hui;Ma, Jiangwei;Liu, Xueying;Zhang, Shengyong. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2014.Application of 486-73-7 This article mentions the following:

A series of novel quinoline-docetaxel analogs I (R = 2-quinolinylcarbonyl, 3-quinolinylcarbonyl, 1-isoquinolinylcarbonyl, 6-quinolinylcarbonyl, etc., R¹ = H, COMe) were designed and synthesized by introducing bioactive quinoline scaffold to C2′-OH of docetaxel. The anticancer activities of these novel analogs were investigated against different human cancer cell lines including Hela, A549, A2780, MCF-7 and two resistant strains A2780-MDR and MCF-7-MDR. The data showed these analogs possessed similar to better cytotoxicity than docetaxel. Compound I (R = 6-quinolinyl, R¹ = H) was found to be the most potent one, and its IC₅₀ value against MCF-7-MDR was 8.8 nM (IC₅₀ of docetaxel was 180 nM). This work indicated that the introduction of quinolyl group in docetaxel could enhance cytotoxicity and reduce drug-resistance. In the experiment, the researchers used many compounds, for example, Isoquinoline-1-carboxylic acid (cas: 486-73-7Application of 486-73-7).

Isoquinoline-1-carboxylic acid (cas: 486-73-7) belongs to isoquinoline derivatives. The isoquinoline structure occurs in a considerable number of alkaloids in widely separated plant families. The discovery of chloroquine, the most well-known drug containing this stent, has helped bring about decades of malaria control and treatment.Application of 486-73-7

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Electrophotocatalytic C-H Functionalization of N-Heteroarenes with Unactivated Alkanes under External Oxidant-Free Conditions was written by Tan, Zhoumei;He, Xinrui;Xu, Kun;Zeng, Chengchu. And the article was included in ChemSusChem in 2022.Related Products of 27104-73-0 This article mentions the following:

A new electrophotocatalytic strategy to access alkyl radicals from strong C(sp³)-H bonds was reported for the following Minisci alkylation reactions in the absence of chem. oxidants. This strategy realized the first example of cerium-catalyzed Minisci alkylation reaction directly from abundant unactivated alkanes with excellent atom economy. It was anticipated that the general design principle would enrich catalytic strategies to explore the functionalizations of strong C(sp³)-H bonds under external oxidant-free conditions with H₂ evolution. In the experiment, the researchers used many compounds, for example, Methyl isoquinoline-3-carboxylate (cas: 27104-73-0Related Products of 27104-73-0).

Methyl isoquinoline-3-carboxylate (cas: 27104-73-0) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. They are also used to make oil-soluble dyes, food colorants, pharmaceuticals, pH indicators and other organic compounds. Related Products of 27104-73-0

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Direct Synthesis of Large-Scale Ortho-Iodinated Perylene Diimides: Key Precursors for Functional Dyes was written by Wu, Jiajun;He, Dezhi;Zhang, Li;Liu, Yudong;Mo, Xiaogang;Lin, Jianbin;Zhang, Hui-jun. And the article was included in Organic Letters in 2017.Recommanded Product: 110590-84-6 This article mentions the following:

In the presence of [Cp^*RhCl₂]₂ and AgSbF₆, perylenediimides underwent chemoselective and regioselective iodination with N-iodosuccinimide mediated by Cu(OAc)₂ in 1,2-dichloroethane to yield ortho-tetraiodination perylenediimides I [R = (BuCH₂CH₂)₂CH, Et₂CH] in 71-89% yields; the reactions were performed on multigram scale. Mono-, di-, and triiodinated perylenediimides were prepared chemoselectively by varying the reaction conditions and solvent. I [R = (BuCH₂CH₂)₂CH] underwent Suzuki and Sonogashira coupling reactions and substitution with aniline, thiophenol, and phenol to give tetrasubstituted perylenediimides; Sonogashira coupling with dialkynes yielded conjugated microporous polymers. The UV/visible spectra, fluorescence behavior, reduction potentials, and calculated HOMO and LUMO energies of I [R = (BuCH₂CH₂)₂CH] and its coupling products were determined The structure of I (R = Et₂CH) was determined by X-ray crystallog. In the experiment, the researchers used many compounds, for example, 2,9-Di(tridecan-7-yl)anthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetraone (cas: 110590-84-6Recommanded Product: 110590-84-6).

2,9-Di(tridecan-7-yl)anthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetraone (cas: 110590-84-6) belongs to isoquinoline derivatives. Although isoquinoline derivatives can be synthesized by several methods, relatively few direct methods deliver the unsubstituted isoquinoline. Isoquinoline-type alkaloids show biological activities similar to those of morphinane-, protoberberine-, and benzophenanthridine-type alkaloids.Recommanded Product: 110590-84-6

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Rh(III)-Catalyzed Tandem Oxidative Olefination-Michael Reactions between Aryl Carboxamides and Alkenes was written by Wang, Fen;Song, Guo-Yong;Li, Xing-Wei. And the article was included in Organic Letters in 2010.Product Details of 491-30-5 This article mentions the following:

Rh(III)-catalyzed oxidative coupling reactions between benzamides or heteroaryl carboxamides and olefins have been developed. The vinylation product can further undergo a Michael reaction leading to γ-lactam in the case of electron-withdrawing olefins. In the experiment, the researchers used many compounds, for example, 1-Hydroxyisoquinoline (cas: 491-30-5Product Details of 491-30-5).

1-Hydroxyisoquinoline (cas: 491-30-5) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. The Pomeranz–Fritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Product Details of 491-30-5

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Photoredox-Mediated Direct Cross-Dehydrogenative Coupling of Heteroarenes and Amines was written by Dong, Jianyang;Xia, Qing;Lv, Xueli;Yan, Changcun;Song, Hongjian;Liu, Yuxiu;Wang, Qingmin. And the article was included in Organic Letters in 2018.Recommanded Product: 27104-73-0 This article mentions the following:

A photoredox-mediated direct cross-dehydrogenative coupling reaction to accomplish α-aminoalkylation of N-heteroarenes is reported. This mild reaction has a broad substrate scope, offers the first general method for synthesis of aminoalkylated N-heteroarenes without the need for substrate prefunctionalization, and is scalable to the gram level. Furthermore, the reaction was found to be applicable to other hydrogen donors besides amines (i.e., ethers, an aldehyde, a formamide, p-xylene, and alkanes), thus enabling the preparation of N-heteroarenes bearing various types of substituents. In the experiment, the researchers used many compounds, for example, Methyl isoquinoline-3-carboxylate (cas: 27104-73-0Recommanded Product: 27104-73-0).

Methyl isoquinoline-3-carboxylate (cas: 27104-73-0) belongs to isoquinoline derivatives. Being an analog of pyridine, isoquinoline is a weak base, with a pKa of 5.14. Most traditional methods of generating isoquinoline do so via oxidative aromatization of dihydro- or tetrahydro-isoquinolines, usually offering some environmental or economic advantage.Recommanded Product: 27104-73-0

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem