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[ CAS No. 149849-93-4 ] {[proInfo.proName]}

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Cat. No.: {[proInfo.prAm]}
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Chemical Structure| 149849-93-4
Chemical Structure| 149849-93-4
Structure of 149849-93-4 * Storage: {[proInfo.prStorage]}
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Product Details of [ 149849-93-4 ]

CAS No. :149849-93-4 MDL No. :MFCD13173932
Formula : C5H2Cl2N2O Boiling Point : -
Linear Structure Formula :- InChI Key :-
M.W :176.99 Pubchem ID :-
Synonyms :

Safety of [ 149849-93-4 ]

Signal Word:Danger Class:8
Precautionary Statements:P260-P261-P264-P270-P271-P280-P301+P312-P301+P330+P331-P302+P352-P303+P361+P353-P304+P340-P305+P351+P338-P310-P312-P321-P322-P330-P363-P405-P501 UN#:3261
Hazard Statements:H302-H312-H314-H332 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 149849-93-4 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Upstream synthesis route of [ 149849-93-4 ]
  • Downstream synthetic route of [ 149849-93-4 ]

[ 149849-93-4 ] Synthesis Path-Upstream   1~2

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  • [ 149849-94-5 ]
Reference: [1] Patent: US5591853, 1997, A,
  • 2
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  • [ 149849-92-3 ]
YieldReaction ConditionsOperation in experiment
80% With ammonia In tetrahydrofuran EXAMPLE 5
Production of 2-chloropyrimidine-4-carboxyamide
Ammonia gas was introduced in 20 ml of tetrahydrofuran at -6° C. for 35 minutes.
Then it was heated to 10° C. and 1.5 g (8.47 mmol) of 2-chloropyrimidine-4-carboxylic acid chloride was added.
The reaction solution was stirred for 45 minutes at room temperature.
Then it was concentrated by evaporation on a rotary evaporator, the residue was poured on 90 ml of saturated NaHCO3 solution, and the aqueous phase was extracted three times with 50 ml of ethyl acetate each.
The combined organic phase was washed with saturated NaCl solution, dried on Na2 SO4 and concentrated by evaporation on a ratory evaporator.
After drying on a high vacuum, 1.07 g of product was obtained as a white solid, corresponding to a yield of 80 percent relative to the 2-chloropyrimidine-4-carboxylic acid chloride used.
The melting point of the product was 147.2° to 151.4° C.
Other data of the product was:
1 H-NMR: (CDCl3, 300 MHz) δ in ppm 6.2, br.s; 7.25, s; 7.7, br.s; 8.1, d; 8.9, d.
Reference: [1] Patent: US5591853, 1997, A,
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