81238-57-5

81238-57-5 - Names and Identifiers

Name	16-[(E)-(2,4-dinitrophenyl)azo]-3,6,9,12-tetraoxabicyclo[12.3.1]octadeca-1(18),14,16-trien-18-ol
Synonyms	LogP 15-CROWN-4 [4-(2,4-DINITROPHENYLAZO)PHENOL] 5-(2,4-DINITROPHENYLAZO)-2-HYDROXY-1,3-XYLYLENE-15-CROWN 4-ETHER 16-[(E)-(2,4-dinitrophenyl)azo]-3,6,9,12-tetraoxabicyclo[12.3.1]octadeca-1(18),14,16-trien-18-ol 3,6,9,12-Tetraoxabicyclo[12.3.1]octadeca-1(18),14,16-trien-18-ol, 16-[2-(2,4-dinitrophenyl)diazenyl]-
CAS	81238-57-5
InChI	InChI=1/C20H22N4O9/c25-20-14-9-16(21-22-18-2-1-17(23(26)27)11-19(18)24(28)29)10-15(20)13-33-8-6-31-4-3-30-5-7-32-12-14/h1-2,9-11,25H,3-8,12-13H2/b22-21+

81238-57-5 - Physico-chemical Properties

Molecular Formula	C20H22N4O9
Molar Mass	462.41
Density	1.482g/cm³
Boling Point	719.715°C at 760 mmHg
Flash Point	389.07°C
Vapor Presure	0mmHg at 25°C
Storage Condition	2-8℃
Refractive Index	1.629

81238-57-5 - Introduction

16-[(E)-(2,4-dinitrophenyl)azo]-3,6,9,12-tetraoxabicyclo[12.3.1]octadeca-1(18),14,16-trien-18-ol (16-[(E)-(2,4-dinitrophenyl)azo]-3,6,9,12-tetraoxabicyclo[12.3.1] 14-18) octane, 16-trien-18-ol) is an organic compound. It has the following characteristics:

1. appearance: usually red crystal or powder solid.
2. density: about 1.49 g/cm.
3. Melting point: about 96-99°C.
4. solubility: soluble in ethanol, dimethyl sulfoxide and dichloromethane and other organic solvents, insoluble in water.
5. chemical properties: it is an azo compound, containing benzene ring and crown ether molecular structure.

The main uses of this compound are as follows:
1. analytical chemistry: can be used as a cation selective electrode recognition fluorescent reagent.
2. polymer chemistry: can be used as ligand or reagent, participate in the synthesis of polymer materials.
3. Organic synthesis: It can be used in organic synthesis reactions, such as reaction with prolinol to produce dynamic chiral catalysts.

the preparation method of 16-[(E)-(2,4-dinitrophenyl)azo]-3,6,9,12-tetraoxabicyclo[12.3.1]octadeca-1(18),14,16-trien-18-ol is relatively complicated, and a possible synthesis route is as follows:
1. First, 4-nitrophenylazo phenol was synthesized by nucleophilic substitution reaction.
2. Then, through a secondary substitution reaction, a 15-crown -4 ring was introduced on 4-nitrophenylazo phenol.
3. Finally, the nitro functional group is converted into the corresponding alcohol group by reduction or esterification.

When using or preparing 16-[(E)-(2,4-dinitrophenyl)azo]-3,6,9,12-tetraoxabicyclo[12.3.1]octadeca-1(18),14,16-trien-18-ol, you need to pay attention to safe operation. to prevent contact with the skin, inhalation or ingestion of the compound. At the same time, work should be carried out in well-ventilated laboratory conditions and wear appropriate protective equipment, such as safety gloves, goggles and protective clothing. Any waste involving this compound should be treated and disposed of in accordance with the appropriate environmental regulations. To ensure safety, follow the safety data and operating instructions for the relevant chemicals.

Last Update：2024-04-09 21:11:58