Name | 2,7-DIHYDROXY-9-FLUORENONE |
Synonyms | 2,7-Dihydroxy-9-fluo 2,7-DIHYDROXYFLUORENONE 2,7-Dihydroxy-9-Fluorene 7-Dihydroxy-9-fluorenone 2,7-DIHYDROXY-9-FLUORENONE 2,7-Dihydroxy-fluoren-9-one 2,7-Dihydroxy-9H-fluoren-9-on 2,7-dihydroxy-9H-fluoren-9-one 2,7-Dihydroxy-9H-fluoren-9-one 9H-fluoren-9-one, 2,7-dihydroxy- |
CAS | 42523-29-5 |
InChI | InChI=1/C13H8O3/c14-7-1-3-9-10-4-2-8(15)6-12(10)13(16)11(9)5-7/h1-6,14-15H |
Molecular Formula | C13H8O3 |
Molar Mass | 212.2 |
Density | 1.497±0.06 g/cm3(Predicted) |
Melting Point | 338 °C |
Boling Point | 444.5±20.0 °C(Predicted) |
Flash Point | 236.7°C |
Vapor Presure | 1.63E-08mmHg at 25°C |
Appearance | Brown to red powder |
Color | Light yellow to Brown |
pKa | 8.87±0.20(Predicted) |
Storage Condition | Sealed in dry,Room Temperature |
Refractive Index | 1.749 |
Physical and Chemical Properties | Melting Point: 336-337 ℃ |
Overview | At present, 2, 7-dihydroxy-9-fluorenone, as an important pharmaceutical intermediate and material functional monomer, can be used in the pharmaceutical industry The synthesis of anti-tumor, sympathetic nerve inhibitors, etc.; it is used in the synthesis of herbicides and pesticides in agriculture; bisphenol products can be synthesized in the plastic industry, as a stabilizer and plasticizer for the polymerization process and the preparation of functional polymer materials; in the field of liquid crystal materials, it can be used to synthesize new organic compounds with mesogenic phenomena, showing good application prospects. |
Uses | 2, 7-dihydroxy-9-fluorenone is a derivative of fluorene and is used as a pharmaceutical intermediate. |
preparation | 2,7-dihydroxy-9-fluorenone preparation is as follows: 1) synthesis of 2,7-dihydroxy-9-fluorenone: preparation of 4,4 '-dihydroxybiphenyl -2-formic acid (II) heating the flake base to melt (300~325 ℃), stirring, adding 2,7-Disulfonate Potassium -9-fluorenone (I) powder. After feeding, react for a period of time, after cooling, dissolve it in ice water, filter, and collect the filtrate. Concentrated hydrochloric acid is added to the filtrate to acidify, cool, filter, and the filter cake is vacuum dried to obtain a light yellow solid compound (II). 2) Preparation of 2, 7-dihydroxy-9-fluorenone (III): After mixing the (II) powder with zinc chloride, heating to a certain temperature, stirring for reaction, cooling, adding to water for dissolution, and filtering. Wash the filter cake to neutral, collect the filter cake, and vacuum dry to obtain red-brown solid product (III). |