4-Chloro-6-isopropoxypyrimidine

Production In 0.5 ml of tetrahydrofuran was suspended 0.02 g of sodium hydride (60% in oil), to which 0.1 ml of a solution containing 0.02 g of 2-butyn-1-ol in tetrahydrofuran was added dropwise at room temperature. After stirring at room temperature for 20 minutes, 0.1 ml of a solution containing 0.05 g of 4- chloro-6- (isopropyloxy) pyrimidine in tetrahydrofuran was added dropwise at room temperature, followed by stirring for 2 hours. The mixture was then poured into a saturated aqueous ammonium chloride solution, which was extracted three times with t-butyl methyl ether. The combined organic layers were washed with a saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated. The residue was subjected to silica gel column chromatography to give 0.05 g of 4- (2- butynyloxy) -6-isopropoxypyrimidine (the present compound (1)). 'H-NMR : 1.34 (d, 6H), 1.87 (t, 3H), 4.94 (q, 2H), 5.25-5. 34 (m, 1H), 6.05 (s, 1H), 8.42 (s, 1H).PREPARATION D Production In 3.5 ml of tetrahydrofuran was suspended 0.11 g of sodium hydride (60% in oil), to which 0.5 ml of tetrahydrofuran containing 0.12 g of isopropyl alcohol dissolved therein was added dropwise at 0C, followed by stirring for 10 minutes. To this was added dropwise 0.5 ml of tetrahydrofuran contain- ing 0.3 g of 4, 6-dichloropyrimidine dissolved therein, followed by stirring at 0C for 2 hours. The reaction mixture was then poured into a saturated aqueous ammonium chloride solution, which was extracted three times with t-butyl methyl ether. The combined organic layers were washed with a saturated aqueous sodium chloride solution, dried over anhydrous magne- sium sulfate, and then concentrated. The residue was subjected to silica gel column chromatography to give 0.26 g of

Molecular Weight:172.61
XLogP3:2.3
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:2
Exact Mass:172.0403406
Monoisotopic Mass:172.0403406
Topological Polar Surface Area:35
Heavy Atom Count:11
Complexity:121
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes