Type:Intermediates of Dyes and Pigments;Indoles and derivatives;Indole;Indoles;Simple Indoles;Building Blocks;Heterocyclic Building Blocks;Heterocycle-Indole series;fine chemical;intermediates;fine chemicals
Grade Standard:High quality
Solubility:Solubility in water
Sulfated Ash:0.5% Max
Heavy Metals:10 ppm Max
Total Impurity:0.5% Max
Application:Used for iodine-catalyzed Markovnikov addition reaction, regioselective synthesis of oxopyrrolidine analogs; used in Friedel-Crafts alkylation reaction; used in the preparation of dioxygenase inhibitor pyridyl-Chemicalbook vinyl indole Anti-cancer immunomodulator; used in the preparation of plant growth inhibitors; used in Michael addition reaction; synthesis of type 1 cyclooxygenase (COX-1) / 2 type cyclooxygenase (COX-2) inhibitors. It is used in organic synthesis and can be used as a deodorant in the fragrance industry.
Application:Catalytic oxidation of cellulose using TEMPO is considered an effective method. It can fully oxidize the lignocellulose fiber structure in its suspension reaction system, and establish a good basic condition for subsequent mechanical dissociation. TEMPO is a water-soluble stable nitroxyl radical. It can be used to selectively catalyze and oxidize the primary hydroxyl group of polysaccharide to convert it to carboxyl group. Current research indicates that 4-H-TEMPO media system catalyzes the oxidation of lignocellulose. The primary alcohol hydroxyl group at the C6 position can be selectively oxidized to an aldehyde group and further oxidized to a carboxyl group. In an aqueous suspension, through mild mechanical treatment, TEMPO-selectively oxidized wood fibers can be broken down into individual cellulose nanofibers. Namely TEMPO oxidized cellulose nanofibrils (TOCNFs). This is because the high-density carboxyl groups introduced on the fiber surface carry anionic charges in water. Therefore, the electrostatic repulsion between them can effectively act between cellulose nanofibrils and promote their effective dissociation. The preparation of TOCNFs by TEMPO-mediated oxidation treatment system has unique advantages. The reaction conditions are mild, the raw materials are cheap and easy to obtain, and they are green and environmentally friendly. The prepared TOCNFs have a more uniform diameter and excellent mechanical properties, which has attracted extensive attention from a large number of scholars. However, there are still some problems that inevitably exist in the preparation process, which requires the unremitting efforts of the majority of scientific research enthusiasts and staff to make them more useful for research.