ChemicalBook > CAS DataBase List > N-BOC-4,4-difluoro-L-proline

N-BOC-4,4-difluoro-L-proline

Product Name
N-BOC-4,4-difluoro-L-proline
CAS No.
203866-15-3
Chemical Name
N-BOC-4,4-difluoro-L-proline
Synonyms
EOS-60318;)-4,4-difL;BOC-L-PRO(4,4-DIFLUORO);Boc-4,4-difluoro-L-Pro-OH;BOC-4,4-DIFLUORO-L-PROLINE;(S)-1-(tert-ButoxycarbonyL;(S)-1-Boc-4,4-difluoropyr...;N-BOC-4,4-DIFLUORO-L-PROLINE;4,4-Difluoro-1-Boc-L-proline;N-T-BOC-4,4-DIFLUORO-L-PROLINE
CBNumber
CB1767047
Molecular Formula
C10H15F2NO4
Formula Weight
251.23
MOL File
203866-15-3.mol
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N-BOC-4,4-difluoro-L-proline Property

Melting point:
120-124 °C
Boiling point:
340.4±42.0 °C(Predicted)
Density 
1.31±0.1 g/cm3(Predicted)
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
pka
3.06±0.40(Predicted)
form 
powder to crystal
color 
White to Light yellow to Light orange
optical activity
[α]22/D -69.0° in chloroform
InChI
InChI=1S/C10H15F2NO4/c1-9(2,3)17-8(16)13-5-10(11,12)4-6(13)7(14)15/h6H,4-5H2,1-3H3,(H,14,15)/t6-/m0/s1
InChIKey
WTMZYKCXBXPVPT-LURJTMIESA-N
SMILES
N1(C(OC(C)(C)C)=O)CC(F)(F)C[C@H]1C(O)=O
CAS DataBase Reference
203866-15-3
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36/37
WGK Germany 
3
HS Code 
29339900
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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

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

Sigma-Aldrich
Product number
687340
Product name
N-Boc-4,4-difluoro-L-proline
Purity
97%
Packaging
500mg
Price
$78.5
Updated
2025/07/31
TCI Chemical
Product number
B4202
Product name
(S)-1-(tert-Butoxycarbonyl)-4,4-difluoro-2-pyrrolidinecarboxylic Acid
Purity
>98.0%(GC)(T)
Packaging
1g
Price
$322
Updated
2024/03/01
TCI Chemical
Product number
B4202
Product name
(S)-1-(tert-Butoxycarbonyl)-4,4-difluoro-2-pyrrolidinecarboxylic Acid
Purity
>98.0%(GC)(T)
Packaging
200mg
Price
$81
Updated
2024/03/01
TRC
Product number
B648000
Product name
N-Boc-4,4-Difluoro-L-proline
Packaging
50mg
Price
$120
Updated
2021/12/16
TRC
Product number
B648000
Product name
N-Boc-4,4-Difluoro-L-proline
Packaging
250mg
Price
$265
Updated
2021/12/16
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N-BOC-4,4-difluoro-L-proline Chemical Properties,Usage,Production

Chemical Properties

solid

Uses

N-Boc-4,4-difluoro-L-proline is a reagent used in the preparation of structure-activity relationship and pharmacokinetics of pyrrolotriazines as pan-Aurora kinase inhibitors and anti tumor agents.

Synthesis

203866-17-5

203866-15-3

The general procedure for the synthesis of N-Boc-4,4-difluoro-L-proline from N-Boc-4,4-difluoro-L-proline methyl ester was as follows: 1. 1.08 g (4.08 mmol) of tert-butyl (S)-2-methyl-4-pyrrolidine-1,4-difluoropyrrolidine-2-carboxylate (purchased from Aldrich, Catalog No. 702463) was dissolved in a mixed solvent of 10 mL of methanol and 10 mL of tetrahydrofuran. 2. 6.12 mL of 2 M aqueous sodium hydroxide was added to the above solution. 3. The reaction mixture was stirred at room temperature for 1 hour. 4. Upon completion of the reaction, the organic solvent was removed under reduced pressure. 5. The remaining aqueous phase was diluted with an appropriate amount of water and then acidified by adding 6.12 mL of 2 M hydrochloric acid. 6. After acidification, the product was extracted with dichloromethane (3 times) and the organic layers were combined. 7. The organic layer was washed with brine, dried with anhydrous magnesium sulfate, filtered and the solvent was removed under reduced pressure. 8. 1.01 g (99% yield) of N-Boc-4,4-difluoro-L-proline was finally obtained as a white solid.LRMS (m/z): 250 (M-1)+.

References

[1] Patent: WO2012/146666, 2012, A1. Location in patent: Page/Page column 138-139
[2] Tetrahedron Letters, 1998, vol. 39, # 10, p. 1169 - 1172
[3] Patent: WO2014/19344, 2014, A1. Location in patent: Paragraph 00451
[4] Patent: WO2014/82380, 2014, A1. Location in patent: Paragraph 00427; 00430
[5] Patent: WO2014/82379, 2014, A1. Location in patent: Page/Page column 158; 159; 161

N-BOC-4,4-difluoro-L-proline Preparation Products And Raw materials

Raw materials

Preparation Products

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N-BOC-4,4-difluoro-L-proline Suppliers

BTC Pharmaceutical CO. Ltd
Tel
15716293042 18862996710
Fax
0513-68015394
Email
15050603958@163.com
Country
China
ProdList
694
Advantage
55
Nanjing Sincerity Chemical Co. Ltd.
Tel
25-17366221-609 13245250309
Email
hp@njsincerity.com
Country
China
ProdList
302
Advantage
58
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
Beijing Ouhe Technology Co., Ltd
Tel
010-010-82967028 13522913783
Fax
+86-10-82967029
Email
2355560935@qq.com
Country
China
ProdList
12000
Advantage
60
Accela ChemBio Co.,Ltd.
Tel
021-50795510 4000665055
Fax
021-50795055
Email
sales@accelachem.com
Country
China
ProdList
11035
Advantage
64
Nanjing Chemlin Chemical Co., Ltd
Tel
025-83697070
Fax
+86-25-83453306
Email
info@chemlin.com.cn
Country
China
ProdList
15883
Advantage
64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42934
Advantage
64
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View Lastest Price from N-BOC-4,4-difluoro-L-proline manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
Product
N-t-BOC-4,4-Difluoro-L-Proline 203866-15-3
Price
US $2.20-8.80/kg
Min. Order
1kg
Purity
99%
Supply Ability
100kg
Release date
2025-06-17
Career Henan Chemical Co
Product
N-BOC-4,4-difluoro-L-proline 203866-15-3
Price
US $6.68/KG
Min. Order
1KG
Purity
97%-99%
Supply Ability
1kg-1000kg
Release date
2020-01-08

203866-15-3, N-BOC-4,4-difluoro-L-prolineRelated Search:


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