Category: 4940-39-0

Related Products of 4940-39-0, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, 4940-39-0, Name is 4-Oxo-4H-1-benzopyran-2-carboxylic Acid, SMILES is O=C(C1=CC(C2=C(O1)C=CC=C2)=O)O, belongs to indole-building-block compound. In a article, author is Dhineshkumar, Jayaraman, introduce new discover of the category.

Azidation of indoles using iodine and copper bromide as catalysts under ambient reaction conditions is presented. The regioselectivity is directed by the substituent at the C3-position of indole. A radical stabilizing group such as an ester or ketone moiety at the C3-position of indole leads to azidation at the C2-position, whereas a less radical stabilizing group such as an alkyl or amide group at the C3-position of indole furnishes the 3-azidooxindole product. This protocol is mild and efficient to obtain several 2-azidoindole derivatives and 3-azidooxindole derivatives in moderate to good yields. The reaction conditions hold well for gram-scale synthesis.

Related Products of 4940-39-0, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about 4940-39-0 is helpful to your research.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 4940-39-0, Name is 4-Oxo-4H-1-benzopyran-2-carboxylic Acid, molecular formula is C10H6O4. In an article, author is Thopate, Satish B.,once mentioned of 4940-39-0, Recommanded Product: 4940-39-0.

A highly regioselective and stereoselective cascade annulation of indoles with C2-symmetric enone tethered-cyclohexadienones provides rapid access to complex indole alkaloid-like scaffolds in high yields. Interestingly, a different reaction course was observed with 3-substituted indoles giving C-2/N annulation products with similar complexity via intramolecular aza-Michael addition. This desymmetrization approach is highly practical and allows atom-economical synthesis of natural product-like molecules containing several contiguous stereocenters with broad range of substrate scope and high functional-group tolerance. The synthetic utility of the products was demonstrated with various chemoselective, regioselective, and diastereoselective transformations on the highly strained polycyclic indoles to elaborate the value of this tandem reaction.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Jia, X. L., once mentioned the application of 4940-39-0, Name is 4-Oxo-4H-1-benzopyran-2-carboxylic Acid, molecular formula is C10H6O4, molecular weight is 190.1522, MDL number is MFCD00006838, category is indole-building-block. Now introduce a scientific discovery about this category, Computed Properties of C10H6O4.

Electrochemical Determination of Indole-3-carboxylic Acid Using Carboxyl Functionalized Multi-Walled Carbon Nanotubes Modified Glassy Carbon Electrode

Indole-3-carboxylic acid (ICA) was detected by differential pulse voltammetry using a glassy carbon electrode (GCE) modified carboxylic multi-walled carbon nanotubes (MWCNTs-COOH). Electrochemical impedance spectroscopy (EIS) and different pulse voltammetry (DPV) were used to study electrochemical properties of the modified electrode. The modified electrode shows higher electrocatalytic activity toward the oxidation of Indole-3-carboxylic acid than those of the carbon electrode modified multi-walled carbon nanotubes or bare glassy carbon electrode. After the experimental conditions were optimized, the linear calibration curve was obtained in the range from 0.75 to 100 mu mol.L-1 with a low detection limit of 0.25 mu mol.L-1 (S/N = 3). The modified electrode was successfully used for the determination of the analytes in real samples, which obtained satisfactory results.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Application of 4940-39-0, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 4940-39-0, Name is 4-Oxo-4H-1-benzopyran-2-carboxylic Acid, SMILES is O=C(C1=CC(C2=C(O1)C=CC=C2)=O)O, belongs to indole-building-block compound. In a article, author is Mei, Guang-Jian, introduce new discover of the category.

Enantioselective Dearomatization of Indoles by an Azoalkene-Enabled (3+2) Reaction: Access to Pyrroloindolines

The enantioselective dearomatization of indoles by an organocatalytic (3+2) reaction has been established. The reaction makes use of simple indole derivatives as substrates, and employs azoalkenes reaction partners. A wide range of pyrroloindolines containing an all-carbon quaternary stereogenic center were readily prepared in high yields and with excellent enantioselectivities.

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Reference:
Indole alkaloid derivatives as building blocks of natural products from?Bacillus thuringiensis?and?Bacillus velezensis?and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles