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ChemicalBook CAS DataBase List tert-butyl 2-chloro-5-nitropyridin-4-ylcarbamate
240815-74-1

tert-butyl 2-chloro-5-nitropyridin-4-ylcarbamate synthesis

2synthesis methods
24424-99-5 Synthesis
Di-tert-butyl dicarbonate

24424-99-5
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tert-butyl 2-chloro-5-nitropyridin-4-ylcarbamate

240815-74-1
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Yield:-

Reaction Conditions:

with dmap in dichloromethane;

Steps:

169.B B.

B. (2-Chloro-5-nitro-4-pyridinyl)carbamic acid 1,1-dimethylethyl ester STR353 A mixture of 169A (995 mg, 5.75 mmol), di-tert-butyl dicarbonate (1.50 g, 6.90 mmol) and DMAP (140 mg, 1.15 mmol) in 60 mL of CH2 Cl2 was stirred for 1 hr. The reaction mixture was diluted with CH2 Cl2 and washed with 1 N HCl (2X), sat'd NaCl and dried over Na2 SO4. Concentration in vacuo gave 1.54 g of 169B.

References:

US5990109,1999,A

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