tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate

Modify Date: 2025-08-31 10:45:54

tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate Structure
tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate structure
 Common Name tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate
CAS Number 690632-38-3 Molecular Weight 396.276
Density 1.4±0.1 g/cm3 Boiling Point 501.3±50.0 °C at 760 mmHg
Molecular Formula C18H22BrNO4 Melting Point N/A
MSDS N/A Flash Point 257.0±30.1 °C

 Names

Name tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 501.3±50.0 °C at 760 mmHg
Molecular Formula C18H22BrNO4
Molecular Weight 396.276
Flash Point 257.0±30.1 °C
Exact Mass 395.073212
PSA 55.84000
LogP 4.60
Vapour Pressure 0.0±1.3 mmHg at 25°C
Index of Refraction 1.596

 Safety Information

Hazard Codes Xi
HS Code 2934999090

 Synthetic Route

1-(4-Bromo-2-hydroxyphenyl)ethanone structure

1-(4-Bromo-2-hy...

CAS#:30186-18-6

N-(tert-Butoxycarbonyl)-4-piperidone structure

N-(tert-Butoxyc...

CAS#:79099-07-3

~85%

tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate Structure

tert-Butyl 6-br...

CAS#:690632-38-3

Literature: Solvay Pharmaceuticalss GmbH Patent: US2007/117823 A1, 2007 ; Location in patent: Page/Page column 13 ;
5'-Bromo-2'-hydroxyacetophenone structure

5'-Bromo-2'-hyd...

CAS#:1450-75-5

N-(tert-Butoxycarbonyl)-4-piperidone structure

N-(tert-Butoxyc...

CAS#:79099-07-3

~99%

tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate Structure

tert-Butyl 6-br...

CAS#:690632-38-3

Literature: CEPHALON, INC.; PHARMACOPEIA, INC. Patent: WO2009/97567 A1, 2009 ; Location in patent: Page/Page column 62 ; WO 2009/097567 A1

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

tert-butyl 6-bromo-4-oxospiro[3H-chromene-2,4'-piperidine]-1'-carboxylate
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Chemsrc provides CAS#:690632-38-3 MSDS, density, melting point, boiling point, structure, etc. Its name is tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate>> amp version: tert-Butyl 6-bromo-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate

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