分子量: 129.18018
cas no.:76632-23-0
结构式:
外观:黄色液体
规格:95%
用途:基础原料、有机中间体、医药中间体
合成路线如下:
lithium aluminium tetrahydride; tetrahydrofuran; diethyl ether;
reactants are commercially availlable.
novartis pharma gmbh, wo2005/77932, a2, (2005) 2-methyl-thiazole-4-carboxylic acid ethyl ester (966 mg, 5.64 mmol) is dissolved in 5 mi of diethylether and cooled to-78°c. a 1 m solution of lithium aluminium hydride in thf (16.9 ml, 16.9 mmol) is added dropwise and the mixture is sirred for 3.5h at-78°c. the mixture is quenched at this temperature with a saturated solution of sodium sulphate and is allowed to warm up to room temperature, followed by extraction with ether and evaporation. yield : 670 mg (92percent). ms (es i) : 130.0 [m-h]-, 1h-nmr (cdc13) : b (ppm) 7.20 (s, 1h), 5.27 (dd, 1h), 4.50 (d, 2h), 2.62 (s, 3h).
feel free to call us on
025-85998075
drop us a line anytime at
,
and we’ll get back
soon.
come visit us at 2 qiande road, life science high tech zone, jiang ning district, nanjing, jiangsu province, china