Day: October 18, 2022

Dong, Jianyang; Wang, Xiaochen; Song, Hongjian; Liu, Yuxiu; Wang, Qingmin published the artcile< Photoredox-Catalyzed Redox-Neutral Minisci C-H Formylation of N-Heteroarenes>, Recommanded Product: 5-Methoxyisoquinoline, the main research area is heteroarene dioxoisoindolinyl diethoxyacetate iridium photocatalyst regioselective Minisci formylation; formyl heteroarene preparation.

A protocol for redox-neutral Minisci C-H formylation of N-heteroarenes using 1,3-dioxoisoindolin-2-yl 2,2-diethoxyacetate as a formyl equivalent at room temp was reported. This scalable benchtop protocol offered a distinct advantage over traditional reductive carbonylation and Minisci C-H formylation methods in not requiring the use of carbon monoxide, pressurized gas, a stoichiometric reductant, or a stoichiometric oxidant.

Advanced Synthesis & Catalysis published new progress about Aromatic nitrogen heterocycles Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 90806-58-9 belongs to class isoquinoline, and the molecular formula is C10H9NO, Recommanded Product: 5-Methoxyisoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Khanapure, Subash P.; Han, Wei; Swartling, Dan J.; Biehl, Edward R. published the artcile< Synthesis of fluorine-substituted anthraquinones and aza-anthraquinones>, Name: 6,9-Difluorobenzo[g]isoquinoline-5,10-dione, the main research area is fluoro anthraquinone azaanthraquinone; anthraquinone fluoro; benzquinolinone fluoro; mitoxantrone fluoroanthraquinone intermediate; ametantrone fluoroanthraquinone intermediate; aza anthraquinone fluoro.

Using 1,4-dipolar-aryne cycloaddition methodol., a convenient, short synthesis of several fluoroanthraquinones I (R1 = H, methoxy, methoxymethoxy; n = integer) is presented which involves the reaction of haloarenes and 3-cyanophthalides in the presence of lithium diisopropylamide (LDA) in THF. The fluorine substituent(s) can be introduced by using fluorine-substituted haloarenes and/or 3-cyanophthalides. Similarly, fluorine-substituted pyridines, i.e. (fluoro)benz[g]isoquinoline-5,10-diones, II (R1 = H, methoxy, methoxymethoxy; n = integer) can be prepared by treating fluorine-substituted cyanophthalides and halopyridines in the presence of lithium diisopropylamide.

Journal of Fluorine Chemistry published new progress about 1,3-Dipolar cycloaddition reaction. 144511-13-7 belongs to class isoquinoline, and the molecular formula is C13H5F2NO2, Name: 6,9-Difluorobenzo[g]isoquinoline-5,10-dione.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Shihui; Pan, Peng; Fan, Huaqiang; Li, Hao; Wang, Wei; Zhang, Yongqiang published the artcile< Photocatalytic C-H silylation of heteroarenes by using trialkylhydrosilanes>, Safety of 5-Methoxyisoquinoline, the main research area is photocatalytic silylation heteroarene hydrosilane green chem.

The efficient and selective C-H silylation of heteroarenes, especially the pharmaceutically relevant electron-deficient heteroarenes, represents a great challenge in organic synthesis. Herein we wish to report a distinctive visible light-promoted photocatalytic C-H silylation approach that enables the direct coupling of trialkylhydrosilanes with both electron-deficient and -rich heteroarenes as well as with cyano-substituted arenes in moderate to high yields and with good regioselectivity. The protocol features operational simplicity, mild reaction conditions, and the use of safe and readily available Na2S2O8, bis(trimethylsilyl) peroxide (BTMSPO) or iPr3SiSH as the radical initiators. Notably, the challenging bulky and inert trialkylhydrosilanes, such as (t-butyldimethyl)silane (tBuMe2SiH) and (triisopropyl)silane (iPr3SiH), work smoothly with the protocol. Moreover, despite the higher stability of tBuMe2Si silylation products, our studies revealed their great reactivity and versatility in diverse C-Si-based chem. transformations, providing an operationally simple, low-cost, and environmentally benign synthetic technol. for mol. construction and elaboration.

Chemical Science published new progress about Green chemistry. 90806-58-9 belongs to class isoquinoline, and the molecular formula is C10H9NO, Safety of 5-Methoxyisoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Huang, Cheng; Qiao, Jia; Ci, Rui-Nan; Wang, Xu-Zhe; Wang, Yang; Wang, Jing-Hao; Chen, Bin; Tung, Chen-Ho; Wu, Li-Zhu published the artcile< Quantum dots enable direct alkylation and arylation of allylic C(sp3)-H bonds with hydrogen evolution by solar energy>, Category: isoquinoline, the main research area is alkene amine preparation quantum dot photocatalyst cross coupling alkylation; heteroarene alkene quantum dot photocatalyst arylation; cadmium sulfide quantam dot preparation; quantum dot cadmium selenide preparation.

A general and mild strategy using semiconductor quantum dots (QDs) as photocatalysts for coupling a broad range of available allylic C(sp3)-H bonds with α-amino C-H bonds or heteroarenes, resp., under sunlight irradiation (> 85 examples) was reported. The protocol bypasses stoichiometric oxidant or reductant and pre-functionalization of both the coupling partners and produces hydrogen (H2) as the byproduct. The outstanding efficiency and selectivity and step- and atom-economy represents the first direct alkylation and arylation of allylic C(sp3)-H bonds with hydrogen evolution powered by solar energy.

Chem published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 90806-58-9 belongs to class isoquinoline, and the molecular formula is C10H9NO, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Pan, Yang; Li, Jiangtao; Li, Zhefeng; Huang, Feng; Ma, Xiaofeng; Jiao, Wei; Shao, Huawu published the artcile< An efficient and facile strategy for trifluoromethylation and perfluoroalkylation of isoquinolines and heteroarenes>, Product Details of C10H9NO, the main research area is trifluoromethyl heteroarene preparation regioselective; heteroarene trimethyltrifluoromethylsilane trifluoromethylation; perfluoroalkyl heteroarene preparation regioselective; trimethyltrifluoroalkylsilane heteroarene perfluoroalkylation.

An effective and regioselective strategy for trifluoromethylation and perfluoroalkylation of isoquinolines I (R1 = OMe, Ph, Br, etc.; R2 = H, formyl, OMe, NO2; R3 = Me, 2-phenylethynyl, Cl, etc.; R4 = H, OMe; R5 = H, Ph, Br) and heteroarenes R6H (R6 = phenanthridin-6-yl, thieno[2,3-c]pyridin-7-yl, quinazolin-2-yl, etc.) was developed. By combination of TMSCnF2n+1 (n = 1, 2, 3) with PIFA, the method achieved the corresponding perfluoroalkylated products R6CnF2n+1 (n = 1, 2, 3) with broad functional group tolerance.

Chemical Communications (Cambridge, United Kingdom) published new progress about Density functional theory, B3LYP. 90806-58-9 belongs to class isoquinoline, and the molecular formula is C10H9NO, Product Details of C10H9NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fier, Patrick S.; Maloney, Kevin M. published the artcile< Reagent Design and Ligand Evolution for the Development of a Mild Copper-Catalyzed Hydroxylation Reaction>, Application In Synthesis of 3336-49-0, the main research area is aryl halide oxime copper dicarboxamide hydroxylation catalyst; phenol preparation; dicarboxamide preparation hydroxylation ligand.

Parallel synthesis and mass-directed purification of a modular ligand library, high-throughput experimentation, and rational ligand evolution have led to a novel copper catalyst for the synthesis of phenols with a traceless hydroxide surrogate. The mild reaction conditions reported here enable the late-stage synthesis of numerous complex, druglike phenols.

Organic Letters published new progress about Amides Role: CAT (Catalyst Use), SPN (Synthetic Preparation), USES (Uses), PREP (Preparation) (di-). 3336-49-0 belongs to class isoquinoline, and the molecular formula is C9H7NO, Application In Synthesis of 3336-49-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhao, Yujun; Bai, Longchuan; Liu, Liu; McEachern, Donna; Stuckey, Jeanne A.; Meagher, Jennifer L.; Yang, Chao-Yie; Ran, Xu; Zhou, Bing; Hu, Yang; Li, Xiaoqin; Wen, Bo; Zhao, Ting; Li, Siwei; Sun, Duxin; Wang, Shaomeng published the artcile< Structure-Based Discovery of 4-(6-Methoxy-2-methyl-4-(quinolin-4-yl)-9H-pyrimido[4,5-b]indol-7-yl)-3,5-dimethylisoxazole (CD161) as a Potent and Orally Bioavailable BET Bromodomain Inhibitor>, Safety of Isoquinolin-8-ylboronic acid, the main research area is quinolinyl pyrimidoindolyl dimethylisoxazole preparation oral BET bromodomain inhibitor.

A series of 9H-pyrimido[4,5-b]indole-containing compounds was designed and synthesized to obtain potent and orally bioavailable BET inhibitors. By incorporation of an indole or a quinoline moiety to the 9H-pyrimido[4,5-b]indole core, we identified a series of small mols. showing high binding affinities to BET proteins and low nanomolar potencies in inhibition of cell growth in acute leukemia cell lines. One such compound, 4-(6-methoxy-2-methyl-4-(quinolin-4-yl)-9H-pyrimido[4,5-b]indol-7-yl)-3,5-dimethylisoxazole (I) has excellent microsomal stability and good oral pharmacokinetics in rats and mice. Orally administered, I achieves significant antitumor activity in the MV4;11 leukemia and MDA-MB-231 triple-neg. breast cancer xenograft models in mice. Determination of the cocrystal structure of I with BRD4 BD2 provides a structural basis for its high binding affinity to BET proteins. Testing its binding affinities against other bromodomain-containing proteins shows that I is a highly selective inhibitor of BET proteins. These data show that I is a potent, selective, and orally active BET inhibitor.

Journal of Medicinal Chemistry published new progress about Antitumor agents. 721401-43-0 belongs to class isoquinoline, and the molecular formula is C9H8BNO2, Safety of Isoquinolin-8-ylboronic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem