Organic Chemical Materials

1-Naphthalenesulfonic acid sodium salt, pure white powder. Irritating to skin, eyes and respiratory tract. Usually, 1-naphthalene sulfonic acid is obtained by sulfonation reaction of organic raw material naphthalene, and then it is obtained by neutralizing and salting out with sodium hydroxide. It can be used as a detection reagent for high performance liquid chromatography (HPLC) and a stationary phase for gas chromatography (GC).

Hexacarbonyl chromium is a coordination compound with the chemical formula Cr (CO) 6. It is a solid at room temperature, and has a high vapor pressure, easy to sublimate. The valence of chromium atom in hexacarbonyl chromium is zero. It is a homogeneous compound, all carbonyls are equivalent, its structure is octahedron, and the bond lengths of Cr-C and C-O are 1.91 and 1.14 Å, respectively

N-fluorobisbenzenesulfonamide is a new, stable and mild fluorination reagent. It can introduce fluorine atoms into the carbonyl ortho position of organic molecules and monofluorinate electron rich aromatic compounds, enol silicon ethers, enol lithium salts, etc. At present, the research focus is the five membered ring formation of Nazarov cyclization catalyzed by iron or cobalt α- Asymmetric catalysis of fluorination. This product is mainly used for palladium catalyzed enantioselective fluorination of TERT butoxycarbonyllactones and lactams. It can also be used for the electrophilic difluorination of dihalopyridines under the action of butyl lithium, and for the direct conversion of alcohols to diphenylsulfonimide compounds under the action of triphenylphosphine. Stable and easy to handle crystalline material, easy to transform f + into enol and negative carbon ions.