4677-20-7, 4-(2-Bromoethyl)tetrahydropyran is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
Example 56A Di-tert-butyl [2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)ethyl](2-oxo-2-{6-[2-(tetrahydro-2H-pyran-4-yl)ethoxy]-1-benzofur-3-yl}ethyl)malonate To a mixture of 200 mg (0.36 mmol) of the compound from Example 55A in 0.75 ml of DMF under argon were added, at RT, 45 mg (0.40 mmol) of potassium tert-butoxide and, after stirring for 5 min at RT, 86 mg (0.44 mmol) of 4-(2-bromoethyl)tetrahydro-2H-pyran, dissolved in 0.25 ml of DMF. The mixture was stirred at a bath temperature of 70 C. for 1.5 h. After cooling to RT, in each case 50 ml of water and ethyl acetate were added, and after phase separation, the aqueous phase was extracted once with 50 ml of ethyl acetate. The combined organic phases were dried over sodium sulphate, filtered and concentrated. The residue was taken up in dichloromethane and purified by column chromatography (40 g of silica gel, mobile phase cyclohexane/ethyl acetate 7:3). 158 mg (63% of theory, purity 95%) of the title compound were obtained. 1H-NMR (400 MHz, CDCl3): delta [ppm]=8.31-8.27 (m, 2H), 8.08 (d, 1H), 8.02 (d, 1H), 7.91-7.86 (m, 1H), 7.77-7.71 (m, 1H), 6.99 (d, 1H), 6.94 (dd, 1H), 4.59-4.53 (m, 2H), 4.05 (t, 2H), 3.98 (dd, 2H), 3.64 (s, 2H), 3.42 (td, 2H), 2.73-2.67 (m, 2H), 1.88-1.74 (m, 3H), 1.72-1.64 (m, 2H), 1.47 (s, 18H), 1.41-1.33 (m, 2H). LC/MS (Method 1, ESIpos): Rt=1.49 min, m/z=676 [M+H]+.
4677-20-7, The synthetic route of 4677-20-7 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; BECK, Hartmut; LI, Volkhart Min-Jian; CANCHO GRANDE, Yolanda; TIMMERMAN, Andreas; BROHM, Dirk; JOeRIssEN, Hannah; BOGNER, Pamela; GERISCH, Michael; LANG, Dieter; (120 pag.)US2017/121315; (2017); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics