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TERT-BUTYL (4-NITROBENZYL)CARBAMATE

Product Name
TERT-BUTYL (4-NITROBENZYL)CARBAMATE
CAS No.
94838-58-1
Chemical Name
TERT-BUTYL (4-NITROBENZYL)CARBAMATE
Synonyms
N-Boc-4-nitrobenzylamine;TERT-BUTYL (4-NITROBENZYL)CARBAMATE;2-Methyl-2-propanyl (4-nitrobenzyl)carbamate;tert-butyl N-[(4-nitrophenyl)methyl]carbamate;Carbamic acid, N-[(4-nitrophenyl)methyl]-, 1,1-dimethylethyl ester
CBNumber
CB8835552
Molecular Formula
C12H16N2O4
Formula Weight
252.27
MOL File
94838-58-1.mol
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TERT-BUTYL (4-NITROBENZYL)CARBAMATE Property

Melting point:
105-108 °C
Boiling point:
408.8±28.0 °C(Predicted)
Density 
1.187±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
pka
11.58±0.46(Predicted)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

AK Scientific
Product number
8824CR
Product name
Tert-Butyl4-nitrobenzylcarbamate
Packaging
1g
Price
$195
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0371106
Product name
TERT-BUTYL-(4-NITROBENZYL)CARBAMATE
Purity
95.00%
Packaging
5MG
Price
$496.58
Updated
2021/12/16
Alichem
Product number
94838581
Product name
tert-Butyl(4-nitrobenzyl)carbamate
Packaging
10g
Price
$510.34
Updated
2021/12/16
Crysdot
Product number
CD12003166
Product name
tert-Butyl4-nitrobenzylcarbamate
Purity
95+%
Packaging
5g
Price
$221
Updated
2021/12/16
Acrotein
Product number
AM-5193
Product name
N-Boc-4-nitrobenzylamine
Purity
97%
Packaging
1g
Price
$110
Updated
2021/12/16
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TERT-BUTYL (4-NITROBENZYL)CARBAMATE Chemical Properties,Usage,Production

Synthesis

24424-99-5

18600-42-5

94838-58-1

Step 1: Preparation of tert-butyl 4-nitrobenzylcarbamate (C4) 4-Nitrobenzylamine hydrochloride (10 g, 53.0 mmol) was suspended in a mixed solvent of THF (150 mL) and water (13 mL) and cooled to 0 °C. Di-tert-butyl dicarbonate (11.6 g, 53.0 mmol) and N,N-diisopropylethylamine (27.7 mL, 159 mmol) were added sequentially under stirring. The reaction mixture was stirred at 0 °C for 30 min and then slowly warmed up to 25 °C and continued stirring for about 20 hours. Upon completion of the reaction, most of the THF was removed by concentration under reduced pressure. the residue was dissolved in EtOAc and washed sequentially with 1N HCl, saturated NaHCO3 solution and saturated NaCl solution. The organic phase was dried over anhydrous MgSO4, filtered and concentrated under reduced pressure to give the off-white solid product C4 (14.0 g, 99% yield). 1H NMR (400 MHz, d6-DMSO) δ: 8.16 (d, 2H), 7.55 (t, 1H), 7.46 (d, 2H), 4.21 (d, 2H), 1.36 (s, 9H).

References

[1] Patent: US2009/54395, 2009, A1. Location in patent: Page/Page column 48
[2] Bioorganic and Medicinal Chemistry Letters, 2003, vol. 13, # 24, p. 4389 - 4393
[3] European Journal of Medicinal Chemistry, 2014, vol. 80, p. 101 - 111
[4] Chemical Communications, 2014, vol. 50, # 97, p. 15305 - 15308
[5] Patent: US2016/264520, 2016, A1. Location in patent: Paragraph 0332; 0333; 0334; 0335

TERT-BUTYL (4-NITROBENZYL)CARBAMATE Preparation Products And Raw materials

Raw materials

Preparation Products

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TERT-BUTYL (4-NITROBENZYL)CARBAMATE Suppliers

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