ChemicalBook--->CAS DataBase List--->1190861-43-8

1190861-43-8

1190861-43-8 Structure

1190861-43-8 Structure
IdentificationBack Directory
[Name]

6-BROMO-2',3',5',6'-TETRAHYDROSPIRO[INDOLINE-3,4'-PYRAN]-2-ONE
[CAS]

1190861-43-8
[Synonyms]

6-bromospiro[1H-indole-3,4'-oxane]-2-one
6-Bromospiro[1H-indole-3,4'-oxane]-2-one
6-Bromo-1H-spiro[indole-3,4'-oxane]-2-one
6-BROMO-2',3',5',6'-TETRAHYDROSPIRO[INDOLINE-3,4'-PYRAN]-2-ONE
6-Bromo-2',3',5',6'-tetrahydrospiro[indoline-3,4'-pyran]-2-one
Spiro[3H-indole-3,4'-[4H]pyran]-2(1H)-one, 6-bromo-2',3',5',6'-tetrahydro-
[Molecular Formula]

C12H12BrNO2
[MDL Number]

MFCD19703313
[MOL File]

1190861-43-8.mol
[Molecular Weight]

282.13
Chemical PropertiesBack Directory
[Boiling point ]

437.1±45.0 °C(Predicted)
[density ]

1.61±0.1 g/cm3(Predicted)
[storage temp. ]

2-8°C
[pka]

12.70±0.20(Predicted)
[Appearance]

White to yellow Solid
[InChI]

InChI=1S/C12H12BrNO2/c13-8-1-2-9-10(7-8)14-11(15)12(9)3-5-16-6-4-12/h1-2,7H,3-6H2,(H,14,15)
[InChIKey]

WGDOZEMHDIATQE-UHFFFAOYSA-N
[SMILES]

N1C2=C(C=CC(Br)=C2)C2(CCOCC2)C1=O
Spectrum DetailBack Directory
[Spectrum Detail]

6-BROMO-2',3',5',6'-TETRAHYDROSPIRO[INDOLINE-3,4'-PYRAN]-2-ONE(1190861-43-8)1HNMR
Hazard InformationBack Directory
[Synthesis]

tert-butyl 6-bromo-2-oxo-2',3',5',6'-tetrahydrospiro[indoline-3,4'-pyran]-1-carboxylate

1190861-47-2

6-BROMO-2',3',5',6'-TETRAHYDROSPIRO[INDOLINE-3,4'-PYRAN]-2-ONE

1190861-43-8

Tert-butyl 6-bromo-2-oxo-2',3',5',6'-tetrahydrospiro[dihydroindole-3,4'-pyran]-1-carboxylate (4.20 g, 11.0 mmol) was used as a starting material, which was dissolved in 1,4-dioxane (25 mL), and 5 M hydrogen chloride solution was added. The reaction mixture was stirred at room temperature for 5 hours. Upon completion of the reaction, the mixture was concentrated under vacuum to afford 6-bromospiro[1H-indole-3,4'-oxahexan]-2-one (3.20 g, 98% yield), the product was a light pink solid. The product was detected by LRMS at m/z 278/280 (M-1)+. 1H-NMR (DMSO-d6) δ: 1.71 (m, 4H), 3.81 (m, 2H), 4.01 (m, 2H), 6.98 (d, J=1.65 Hz, 1H), 7.14 (dd, J=7.97 Hz, J=1.65 Hz, 1H). 7.47 (d, J=7.97Hz, 1H), 10.55 (s, NH).

[References]

[1] Patent: EP2108641, 2009, A1. Location in patent: Page/Page column 32-33
[2] Patent: EP2113503, 2009, A1. Location in patent: Page/Page column 24
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