ChemicalBook--->CAS DataBase List--->439811-37-7

439811-37-7

439811-37-7 Structure

439811-37-7 Structure
IdentificationBack Directory
[Name]

1-BOC-4-(4-BROMO-BENZOYL)-PIPERIDINE
[CAS]

439811-37-7
[Synonyms]

1-BOC-4-(4-BROMO-BENZOYL)-PIPERIDINE
tert-butyl 4-(4-broMobenzoyl)piperidine-1-carboxylate
tert-butyl 4-[(4-broMophenyl)carbonyl]piperidine-1-carboxylate
4-(4-bromobenzoyl)piperidine-1-carboxylic acid tert-butyl ester
1-Piperidinecarboxylic acid, 4-(4-bromobenzoyl)-, 1,1-dimethylethyl ester
[EINECS(EC#)]

200-589-5
[Molecular Formula]

C17H22BrNO3
[MDL Number]

MFCD04114991
[MOL File]

439811-37-7.mol
[Molecular Weight]

368.27
Chemical PropertiesBack Directory
[Boiling point ]

452.3±40.0 °C(Predicted)
[density ]

1.325±0.06 g/cm3(Predicted)
[storage temp. ]

2-8°C
[pka]

-2.47±0.40(Predicted)
[Appearance]

Off-white to light yellow Solid
Spectrum DetailBack Directory
[Spectrum Detail]

1-BOC-4-(4-BROMO-BENZOYL)-PIPERIDINE(439811-37-7)1HNMR
Hazard InformationBack Directory
[Synthesis]

(4-bromophenyl)(piperidin-4-yl)methanone

746550-66-3

Di-tert-butyl dicarbonate

24424-99-5

1-BOC-4-(4-BROMO-BENZOYL)-PIPERIDINE

439811-37-7

Step 1. Synthesis of tert-butyl 4-(4-bromobenzoyl)-piperidine-1-carboxylate. To a 250 mL round bottom flask was added 4-(4-bromobenzoyl)piperidine (5 g, 20 mmol), tetrahydrofuran (30 mL), water (30 mL), sodium carbonate (10 g, 90 mmol) and di-tert-butyl dicarbonate (4.35 g, 20.0 mmol). The reaction mixture was stirred at room temperature for 2 h and then partitioned with ethyl acetate and water. The aqueous layer was extracted twice with ethyl acetate, the organic phases were combined, washed with brine, dried, filtered and concentrated to give 7.1 g (100% yield) of tert-butyl 4-(4-bromobenzoyl)-piperidine-1-carboxylate.

[References]

[1] Patent: WO2016/205590, 2016, A1. Location in patent: Paragraph 00596
[2] Patent: WO2013/147711, 2013, A1. Location in patent: Page/Page column 231
[3] Patent: US2014/371199, 2014, A1. Location in patent: Paragraph 0801
[4] Patent: US2005/54628, 2005, A1. Location in patent: Page/Page column 23-24
[5] Patent: US2005/49269, 2005, A1. Location in patent: Page/Page column 12; 21
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