(3-BROMO-PYRIDIN-4-YL)-CARBAMIC ACID TERT-BUTYL ESTER
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(3-BROMO-PYRIDIN-4-YL)-CARBAMIC ACID TERT-BUTYL ESTER
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CAS No:
257937-08-9
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Formula:
C10H13BrN2O2
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Chemical Name:
(3-BROMO-PYRIDIN-4-YL)-CARBAMIC ACID TERT-BUTYL ESTER
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Synonyms:
4-BOCAMINO-3-BROMOPYRIDINE;(3-BROMO-PYRIDIN-4-YL)-CARBAMIC ACID TERT-BUTYL ESTER;(3-BROMOPYRIDIN-4-YL)CARBAMIC ACID TERT-BUTYL ESTER, 95+%;tert-Butyl (3-broMopyridin-4-yl)carbaMate;N-Boc-4-amino-3-bromopyridine;tert-butyl N-(3-bromo-4-pyridyl)carbamate
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CAS No:
(3-BROMO-PYRIDIN-4-YL)-CARBAMIC ACID TERT-BUTYL ESTER Use and Manufacturing
tert-Butyl 3-bromopyridin-4-ylcarbamate To stirred a solution of 4-amino 3-bromo pyridine (10.0 g, 57.803 mmol) in THF (500 ml) were added triethylamine (8.8 g, 86.705 mmol) and Boc anhydride (37.89 g, 173.410 mmol). The reaction mixture was stirred for 2 h, before pouring into water (700 ml) and extracted with EtOAc (500 ml x 2), yielding ie/f-butyl (3- bromopyridin-4-yl)carbamate (37.0 g, 136.029 mmol). MS: 274.95 (M+2).tert-Butyl (3-bromopyridin-4-yl)carbamate (3f) (52percent) was prepared from pyridine 2f (2.70 g, 13.9 mmol) [34]. White solid; mp 91-92 °C. 1H NMR (400 MHz, CDCl3) δ 8.58 (s, 1H), 8.37 (d, J=5.6 Hz, 1H), 8.15 (d, J=5.6 Hz, 1H), 7.18 (s, 1H), 1.55 (s, 9H); 13C NMR (101 MHz, CDCl3) δ 151.6, 151.4, 149.4, 143.1, 113.1, 109.6, 82.4, 28.1 (3C).
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