| Identification | Back Directory | [Name]
4-METHOXYPHENYLACETALDEHYDE | [CAS]
5703-26-4 | [Synonyms]
AKOS BB-9815
(4-Methoxyphenyl)ethanal
para-anisyl acetaldehyde
4-METHOXYPHENYLACETALDEHYDE
4-Methoxybenzeneacetaldehyde
PARA-METHOXYPHENYLACETALDEHYDE
2-(4-METHOXYPHENYL)ACETALDEHYDE
Benzeneacetaldehyde, 4-methoxy- | [EINECS(EC#)]
227-191-5 | [Molecular Formula]
C9H10O2 | [MDL Number]
MFCD02261769 | [MOL File]
5703-26-4.mol | [Molecular Weight]
150.17 |
| Chemical Properties | Back Directory | [Melting point ]
0 °C | [Boiling point ]
255.5°C (estimate) | [density ]
1.0960 | [refractive index ]
1.5359 (estimate) | [storage temp. ]
Inert atmosphere,Store in freezer, under -20°C | [solubility ]
Chloroform (Sparingly) | [form ]
Oil | [color ]
Colourless | [Odor]
at 10.00 % in dipropylene glycol. powerful hawthorn | [Odor Type]
floral | [Stability:]
Air Sensitive, Moisture Sensitive | [LogP]
1.620 |
| Hazard Information | Back Directory | [Uses]
4-Methoxyphenylacetaldehyde is used in perfume compositions as part of the floral theme, mainly in Lilac, Heliotrope, Wallflower, Acacia, New Mown Hay, Hawthorne, and also in Fougeres as a sweetener or modifier for Anisaldehyde, etc. It blends excellently with the conventional sweeteners and florals, and produces softer, less harsh notes than Anisaldehyde or the substituted Acetophenones. The aldehyde tends to polymerize on storage and should be kept at uniform temperature, preferably in dilution, protected from daylight and air. Polymerization causes increase in viscosity and loss of odor. | [Synthesis Reference(s)]
Tetrahedron Letters, 31, p. 7499, 1990 DOI: 10.1016/S0040-4039(00)88528-7 | [Synthesis]
Prod.:
1) from para-Methoxy allyl benzene with
Mercuric oxide plus Iodine.
2) from pmw-Styrylcarbamic ester by hydrolysis
with Sulfuric acid.
3) from Anisaldehyde via Darzens' synthesis.
4) It has also been prepared from Estragole. |
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