t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate

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t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate Basic information
Product Name:t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate
Synonyms:1-BOC 6-bromo-3,4-dihydro-2H-quinoline;t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate;6-Bromo-3,4-dihydro-2H-quinoline-1-carboxylic acid tert-butyl ester;tert-butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate;Reaxys ID: 21840191;1(2H)-Quinolinecarboxylic acid, 6-bromo-3,4-dihydro-, 1,1-dimethylethyl ester;1-Boc-6-bromo-1,2,3,4-tetrahydroquinoline;tert-Butyl 6-broMo-3,4-dihydroquinoline-1(2H)-carboxylate
CAS:1123169-45-8
MF:C14H18BrNO2
MW:312.2
EINECS:
Product Categories:
Mol File:1123169-45-8.mol
t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate Structure
t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate Chemical Properties
Boiling point 382.0±41.0 °C(Predicted)
density 1.353±0.06 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
pka0.02±0.20(Predicted)
AppearanceWhite to off-white Solid
Safety Information
MSDS Information
t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate Usage And Synthesis
Synthesis
6-BROMO-1,2,3,4-TETRAHYDROQUINOLINE

22190-35-8

Di-tert-butyl dicarbonate

24424-99-5

t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate

1123169-45-8

Step 1. 6-Bromo-1,2,3,4-tetrahydroquinoline (5 g, 23.7 mmol) was dissolved in 60 mL of tetrahydrofuran (THF) under stirring conditions. Subsequently, a solution formed from sodium hydroxide (1 g, 25 mmol) dissolved in 30 mL of water was added to this solution. Next, di-tert-butyl dicarbonate (5.37 g, 25 mmol) was added. The reaction mixture was stirred continuously for 12 hours at room temperature. Upon completion of the reaction, the solvent was removed by distillation under reduced pressure. The aqueous phase was extracted with ethyl acetate (50 mL x 3). The organic phases were combined, washed with saturated brine, dried over anhydrous sodium sulfate, concentrated and purified by column chromatography to afford Boc-protected tert-butyl 6-bromo-3,4-dihydroquinoline-1(2H)-carboxylate (3 g, 40.7% yield) as a colorless solid.1H NMR (300 MHz, CDCl3): δ 7.56-7.53 (m, 1H), 7.24- 7.19 (m, 2H), 3.70-3.66 (m, 2H), 2.75-2.71 (m, 2H), 1.92-1.88 (m, 2H), 1.52 (s, 9H).

References[1] ChemMedChem, 2018, vol. 13, # 14, p. 1405 - 1413
[2] Patent: WO2014/8214, 2014, A1. Location in patent: Paragraph 00335-00336
t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate Preparation Products And Raw materials
Raw materials6-Bromo-1,2,3,4-tetrahydroquinoline-->Di-tert-butyl dicarbonate-->Water-->Sodium hydroxide-->Tetrahydrofuran
Tag:t-Butyl 6-bromo-3,4-dihydro-2H-quinoline-1-carboxylate(1123169-45-8) Related Product Information
6-Bromo-1,2,3,4-tetrahydroquinoline 6-Bromo-1,2,3,4-tetrahydroquinoline hydrochloride tert-Butyl 7-broMo-3,4-dihydroquinoline-1(2H)-carboxylate t-Butyl 3,4-dihydro-2H-quinoline-1-carboxylate 6-Bromo-3,4-dihydro-2H-quinoline-1-carboxylic acid methyl ester 6-bromo-1-methyl-1,2,3,4-tetrahydroquinoline