structural formula
business number | 024u |
---|---|
molecular formula | c10h13no |
molecular weight | 163.22 |
label |
n-phenylmorpholine, 4-phenylmorpholine, (4-morpholinyl)benzene, n-phenylmorpholine, anti-corrosion additives, catalyst, multifunctional solvent |
numbering system
cas number:92-53-5
mdl number:mfcd00006166
einecs number:202-164-0
rtecs number:qe8575000
brn number:none
pubchem number:24852668
physical property data
1. properties: colorless crystals.
2. density (g/ml, 57/20℃): 1.06
3. relative vapor density (g/ml, air=1): 5.63
4. melting point (ºc): 57
5. boiling point (ºc, normal pressure): 268
6. boiling point (ºc, 5.999kpa): 165~170
p>
7. flash point (ºc, open): 104
8. vapor pressure (kpa, 20ºc): <0.013
9. solubility: soluble in ethanol , diethyl ether, insoluble in water.
toxicological data
the oral ld50 in rats is 930mg/kg.
ecological data
none
molecular structure data
1. molar refractive index: 48.06
2. molar volume (cm3/mol): 152.7
3. isotonic specific volume (90.2k ): 381.0
4. surface tension (dyne/cm): 38.7
5. polarizability (10-24cm3): 19.05
compute chemical data
1. reference value for hydrophobic parameter calculation (xlogp): none
2. number of hydrogen bond donors: 0
3. number of hydrogen bond acceptors: 2
4. number of rotatable chemical bonds: 1
5. number of tautomers: none
6. topological molecule polar surface area 12.5
7. number of heavy atoms: 12
8. surface charge: 0
9. complexity: 126
10. number of isotope atoms: 0
11. determine the number of atomic stereocenters: 0
12. uncertain number of atomic stereocenters: 0
13. determine the number of chemical bond stereocenters: 0
14. number of uncertain chemical bond stereocenters: 0
15. number of covalent bond units: 1
properties and stability
n-phenylmorpholine is a fairly stable compound and does not easily catch fire. chemical properties pka 3.20 (25°c, water). condensation with benzaldehyde produces a colorless matrix, which is rearranged to obtain malachite green dye. due to the presence of morpholino group, the ortho-para position of the benzene ring is activated and reacts with nitric acidobtain ortho and para nitro compounds. it is relatively stable to oxidation and only generates a small amount of formaldehyde when oxidized with dichromic acid.
storage method
this product should be kept sealed.
synthesis method
prepared from the action of n, n-bis-β-hydroxyethylaniline and sulfuric acid.
purification method: use water for recrystallization and purification.
purpose
the compound has properties similar to n, n-dimethylaniline and is basic. it can be used as a reagent for dehydrobromination of allyl bromide compounds and has the advantage that the product is easier to purify. used as anti-corrosion additives, intermediates for dyes and insecticides, and catalysts in the decomposition of peroxides.
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