ChemicalBook CAS DataBase List 2-Chloro-4-methylpyrimidine

2-Chloro-4-methylpyrimidine synthesis

13synthesis methods

Product Name:2-Chloro-4-methylpyrimidine
CAS Number:13036-57-2
Molecular formula:C5H5ClN2
Molecular Weight:128.56

5424-21-5 Synthesis

5424-21-5
321 suppliers
$10.00/5g

13036-57-2
330 suppliers
$6.00/1g

Yield:13036-57-2 74.4%

Reaction Conditions:

with ammonium hydroxide;zinc for 2 h;Reflux;

Steps:

1.3 (3) Synthesis of 2-chloro-4-methyl pyrimidine
To the reaction flask were sequentially added 2,4-dichloro-6-methyl-pyrimidine (15.00 g, 92.00 mmol), zinc powder (18.05 g, 276.00 mmol), ammonia (38.70 g, 276 mmol) and stirred at to the reaction flask was added water (120 ml). The reaction was heated at reflux for 2 hours, the reaction solution was cooled to room temperature, suction filtered, the filtrate was extracted with ethyl acetate (2x200 ml), the organic layer was post-saturated brine (150 ml), dried over anhydrous magnesium sulfate, and concentrated under reduced pressure the residue was purified by column chromatography (eluent to PE: EA = 5: 1), to give a white solid 8.8 g, yield 74.4%

References:

Shenyang Pesticide Chemical Co., Ltd.;Li, Bin;Wang, Gang;Fan, Xiaoxi;Lu, Liang;Li, Keke;Shi, Xuegeng CN105732587, 2016, A Location in patent:Paragraph 0117; 0118; 0119

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3934-20-1 Synthesis