ChemicalBook CAS DataBase List 2-Amino-4-chloro-6-methylpyrimidine

2-Amino-4-chloro-6-methylpyrimidine synthesis

6synthesis methods

Product Name:2-Amino-4-chloro-6-methylpyrimidine
CAS Number:5600-21-5
Molecular formula:C5H6ClN3
Molecular Weight:143.57

3977-29-5 Synthesis

3977-29-5
250 suppliers
$6.00/10g

5600-21-5
319 suppliers
$18.00/25g

Yield:5600-21-5 54%

Reaction Conditions:

with trichlorophosphateReflux;

Steps:

2-Amino-4-chloro-6-methylpyrimidine (III
Amixture of 6 g of isocytosine IV and 35 mL of freshlydistilled phosphorus oxychloride was refluxed till themixture became homogeneous, then the excess of thechlorinating agent was removed in a vacuum. Forcooling, the residue was mixed with ice and treatedwith 25% aqueous ammonia to 8. The formedsuspension was filtered, the precipitate was washedwith water, crystallized from 50% ethanol, and dried toa constant mass. Yield 3.7 g (54%), mp 188° (mp182-183° [7]), Rf 0.79 (D). Found, %: 41.74;4.05; N 29.35. C5H6ClN3. Calculated, %: 41.83;4.21; N 29.27.

References:

Erkin, A. V.;Krutikov, V. I.;Gurzhii, V. V. [Russian Journal of General Chemistry,2015,vol. 85,# 1,p. 79 - 87][Zh. Obshch. Khim.,2015,vol. 85,# 1,p. 79 - 87,9][Zhurnal Obshchei Khimii,2015,vol. 85,# 1,p. 79 - 87,9]

FullText

3977-29-5 Synthesis

3977-29-5
250 suppliers
$6.00/10g

5600-21-5
319 suppliers
$18.00/25g

References

5424-21-5 Synthesis