ChemicalBook > CAS DataBase List > Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate

Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate

Product Name
Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate
CAS No.
170123-25-8
Chemical Name
Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate
Synonyms
O1-tert-butyl O2-ethyl 3-oxopyrrolidine-1,2-dicarboxylate;N-Boc-3-oxopyrrolidine-2-carboxylate;Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate;N-Boc-3-Oxopyrrolidine-2-carboxylic acid ethyl ester;1-tert-Butyl 2-ethyl 3-oxopyrrolidine-1,2-dicarboxylate;Ethyl 1-(tert-butoxycarbonyl)pyrrolidin-3-one-2-carboxylate;1-(tert-Butoxycarbonyl)pyrrolidin-3-one-2-carboxylic acid ethyl ester;1,2-Pyrrolidinedicarboxylic acid, 3-oxo-, 1-(1,1-dimethylethyl) 2-ethyl ester
CBNumber
CB22566160
Molecular Formula
C12H19NO5
Formula Weight
257.28
MOL File
170123-25-8.mol
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Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate Property

Boiling point:
348.0±42.0 °C(Predicted)
Density 
1.182±0.06 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
form 
liquid
pka
12.58±0.20(Predicted)
Appearance
Colorless to light yellow Liquid
InChI
InChI=1S/C12H19NO5/c1-5-17-10(15)9-8(14)6-7-13(9)11(16)18-12(2,3)4/h9H,5-7H2,1-4H3
InChIKey
XSFVPTGDKAJZDH-UHFFFAOYSA-N
SMILES
N1(C(OC(C)(C)C)=O)CCC(=O)C1C(OCC)=O
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Safety

HS Code 
2933998090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

TRC
Product number
E926548
Product name
EthylN-Boc-3-oxopyrrolidine-2-carboxylate
Packaging
50mg
Price
$45
Updated
2021/12/16
AK Scientific
Product number
5481AD
Product name
3-Oxo-pyrrolidine-1,2-dicarboxylicacid1-tert-butylester2-ethylester
Packaging
250mg
Price
$127
Updated
2021/12/16
Apolloscientific
Product number
OR300597
Product name
1-tert-Butyl2-ethyl3-oxopyrrolidine-1,2-dicarboxylate
Packaging
5g
Price
$621
Updated
2021/12/16
SynQuest Laboratories
Product number
4H58-1-6U
Product name
1-tert-Butyl 2-ethyl 3-oxopyrrolidine-1,2-dicarboxylate
Packaging
5G
Price
$685
Updated
2021/12/16
Apolloscientific
Product number
OR300597
Product name
1-tert-Butyl2-ethyl3-oxopyrrolidine-1,2-dicarboxylate
Packaging
1g
Price
$167
Updated
2021/12/16
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Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate Chemical Properties,Usage,Production

Synthesis

146256-97-5

170123-25-8

A toluene solution of ethyl 3-(tert-butoxycarbonyl-ethoxycarbonylmethyl-amino)-propionate (1.43 g, 4.7 mmol) was added slowly and dropwise to an anhydrous toluene (19 mL) suspension of potassium tert-butoxide (791 mg, 7.05 mmol) at 10 °C. The reaction mixture was stirred at 0 °C for 90 min, followed by quenching the reaction with acetic acid (500 mL). Next, pre-cooled aqueous solution of NaH2PO4-H2O (2.5 g) (25 mL) was added. The organic and aqueous layers were separated and the aqueous phase was extracted with chloroform (CHCl3). All organic layers were combined, dried with anhydrous Na2SO4 and concentrated under reduced pressure. The crude product was purified by fast column chromatography (silica gel, petroleum ether/ethyl acetate 5:1, Rf 0.44) to afford ethyl N-Boc-3-oxopyrrolidine-2-carboxylate as a yellow oil (497 mg, 41% yield). The product was confirmed by 1H NMR (CDCl3, 200 MHz) with the following main rotary isomer signals: δ 4.55 and 4.47 (s, 1H), 4.27-4.22 (m, 2H), 3.91-3.84 (m) and 3.82 (t, J = 8.2 Hz, 2H), 2.69 (t, J = 8.0 Hz, 2H), 1.49 and 1.43 ( s, 9H), and 1.30 (t, J = 7.1 Hz, 3H). The results of elemental analysis are consistent with the calculated values (C, H, N) for C12H19NO5.

References

[1] Chemical Communications, 2016, vol. 52, # 53, p. 8271 - 8274
[2] Journal of the Chemical Society - Perkin Transactions 1, 1997, # 15, p. 2179 - 2187
[3] Organic Letters, 2007, vol. 9, # 21, p. 4255 - 4258
[4] Tetrahedron Asymmetry, 2005, vol. 16, # 13, p. 2243 - 2247
[5] Bioorganic and Medicinal Chemistry Letters, 2008, vol. 18, # 6, p. 1931 - 1938

Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate Preparation Products And Raw materials

Raw materials

Preparation Products

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Ethyl N-Boc-3-oxopyrrolidine-2-carboxylate Suppliers

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