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HomeProduct name listtert-Butyl 4-aminobenzoate

tert-Butyl 4-aminobenzoate

  • CAS NO.:18144-47-3
  • Empirical Formula: C11H15NO2
  • Molecular Weight: 193.24
  • MDL number: MFCD00665790
  • EINECS: 629-537-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-05-16 14:11:51
tert-Butyl 4-aminobenzoate Structural

What is tert-Butyl 4-aminobenzoate?

The Uses of tert-Butyl 4-aminobenzoate

tert-Butyl 4-aminobenzoate can be used to synthesise structural units for antifolate and a novel liver-targeted coupling of PSN-357, a glycogen phosphorylase inhibitor for the treatment of diabetes. It can also be used in the synthesis of tert-butyl 4-aminobenzoate n-substituted derivatives[1].

Synthesis

tert-Butyl 4-aminobenzoate is synthesised using tert-butyl 4-nitrobenzoate as raw material by chemical reaction. The specific synthesis steps are as follows:
Tert-butyl 4-nitrobenzoate (4.75 g, 21.279 mmol) was dissolved in MeOH (200 ml) and added with CAUTION was Pd/C (475 mg, 0.1 equiv. w/w) and the flask evacuated prior to purging with N2, re-evacuation and purging with H2. The mixture was stirred under H2 for 5 hours until complete. The mixture was filtered through celite and evaporated to a white solid (4.11 g, 21.269 mmol, quant.). Rf 0.29 [20% EtOAc in Hexane]. Mp. I l l - 113 0C. 1H NMR (400 MHz, CDCl3) δ 7.79 (2H, dt, J=8.6, 2.3 Hz, 2ArH), 6.61 (2H, dt, J=8.6, 2.3 Hz, 2ArH), 4.00 (2H, br s, NH2), 1.56 (9H, s, C(CH3)3) ppm. 13C NMR (100 MHz, CDCl3) δ 165.9 (C=O), 150.4 (ArC), 131.3 (ArCH), 121.7 (ArC), 113.7 (ArCH), 80.0 (C(CH3)3), 28.3 (C(CH3)3) ppm. IR (neat) υmax 3415, 3345, 3235, 2972, 1682, 1598, 1367, 1287, 1154, 1115 cm 1. HRMS mJz calc. C11H15NO2 [M+l] 194.1176, found [M+l] 194.1179.
tert-Butyl 4-aminobenzoate synthesis

References

[1] V. BAVETSIAS  E. H. Synthesis of N-substituted derivatives of tert-butyl 4-aminobenzoate via a palladium-catalysed reaction[J]. Journal of Chemical Research-s, 2000. DOI:10.3184/030823400103168100.

Properties of tert-Butyl 4-aminobenzoate

Melting point: 108-110 °C
Boiling point: 322.4±15.0 °C(Predicted)
Density  1.078±0.06 g/cm3(Predicted)
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
form  powder to crystal
pka 2.43±0.10(Predicted)
color  White to Light yellow to Light orange
BRN  2803178
CAS DataBase Reference 18144-47-3(CAS DataBase Reference)

Safety information for tert-Butyl 4-aminobenzoate

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.
P271:Use only outdoors or in a well-ventilated area.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for tert-Butyl 4-aminobenzoate

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