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HomeProduct name list4-NITROBENZO-15-CROWN-5

4-NITROBENZO-15-CROWN-5

4-NITROBENZO-15-CROWN-5 Structural

What is 4-NITROBENZO-15-CROWN-5?

Chemical properties

LIGHT YELLOW GRANULAR POWDER

The Uses of 4-NITROBENZO-15-CROWN-5

4-Nitrobenzo-15-crown-5 is a raw material used in synthesis as well as an intemediate in chemical syntheis and pharmaceutica intemediate. It is also used to separate cations, dissolve inorganic salts into organic solvents to perform naked anion chemistry, serve as phase transfer catalysts, and chiral crown ethers have been used to resolve racemic mixtures or separate isomers by chiral chromatography.

Purification Methods

Recrystallise the crown ether from EtOH, MeOH or *C6H6/hexane as for the 18-crown-6 compound below. It complexes with Na+, K+, NH4+, Ca2+, Mg2+ and Cd2+. The 1HNMR spectrum (CDCl3) has (ppm): 3.6-4.4 (m 16CH2), 6.8 (d 1H arom), 7.65 (d 1H arom), 7.80 (dd 1H arom Jab 9Hz and Jbc 3Hz) [Schmid et al. J Am Chem Soc 98 5198 1976, Kikukawa et al. Bull Chem Soc Jpn 50 2207 1977, Toke et al. Justus Liebigs Ann Chem 349 349, 761 1988, Lindner et al. Z Anal Chem 322 157 1985].

Properties of 4-NITROBENZO-15-CROWN-5

Melting point: 93-97 °C(lit.)
Boiling point: 453.11°C (rough estimate)
Density  1.191
refractive index  1.5230 (estimate)
storage temp.  Store below +30°C.
solubility  It is soluble in non-polar solvents.
form  powder to crystal
color  Light orange to Yellow to Green
BRN  1598970
CAS DataBase Reference 60835-69-0(CAS DataBase Reference)

Safety information for 4-NITROBENZO-15-CROWN-5

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 4-NITROBENZO-15-CROWN-5

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