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HomeProduct name list2',4'-Dihydroxypropiophenone

2',4'-Dihydroxypropiophenone

  • CAS NO.:5792-36-9
  • Empirical Formula: C9H10O3
  • Molecular Weight: 166.17
  • MDL number: MFCD00002280
  • EINECS: 227-329-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-03-27 16:59:26
2',4'-Dihydroxypropiophenone Structural

What is 2',4'-Dihydroxypropiophenone?

Chemical properties

light yellow crystals or crystalline powder

Preparation

Preparation by reaction of propionic acid with resorcinol,
in the presence of zinc chloride (Nencki reaction), at reflux (160–165°) ? for 15 min, at 150° for 20 min
in the presence of boron trifluoride for 2 h at 70° (79%), at 80° (67%) ? or at 105–108° for 15 min (71%)
in the presence of polyphosphoric acid for 10–20 min in a boiling water bath ? (65%)
in the presence of 70% perchloric acid at reflux for 30 min (70%)
in the presence of Amberlite IR-120 (cation exchange resin sulfonic acid type) ? at 160° for 2–3 h (76%)
Preparation by reaction of propionitrile with resorcinol (Hoesch reaction) (75%) (65%) (46%)(35%)
Preparation by reaction of propionic anhydride with resorcinol
in the presence of Amberlite IR-120 (cation exchange resin sulfonic acid ? type) at 160° for 2–3 h (82%)
in the presence of concentrated sulfuric acid (small drops) at 130° for some ? min (60%)
Also obtained by Fries rearrangement of resorcinol dipropionate
with aluminium chloride at 180–185° for 90 min (25%)
with boron trifluoride, in the presence of resorcinol, at 75° for 1 h (83%)
Also obtained by reaction of ethylmagnesium bromide with 2,4-dihydroxy-N, N-diethylbenzamide in refluxing benzene (12%).

Properties of 2',4'-Dihydroxypropiophenone

Melting point: 95-98 °C(lit.)
Boiling point: 178 °C / 7mmHg
Density  1.1708 (rough estimate)
refractive index  1.5260 (estimate)
pka 8.03±0.40(Predicted)
form  powder to crystal
color  Light yellow to Yellow to Orange
BRN  1238635
CAS DataBase Reference 5792-36-9(CAS DataBase Reference)

Safety information for 2',4'-Dihydroxypropiophenone

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.
P264:Wash hands thoroughly after handling.
P264:Wash skin thouroughly after handling.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
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 2',4'-Dihydroxypropiophenone

InChIKey LLBBBYLDTDJMNU-UHFFFAOYSA-N

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