Hexamethyldisilazane → HCID 57835929, compound

Participants

Reaction Steps

To a solution of HMDS (21.17 g, 131.1 mmol) in THF (200 mL) was cooled to −40° C. Then it was added with n-BuLi (56.7 mL, 136.22 mmol) and stirred at same temperature for 45 min. After that (4-hydroxyphenyl)(phenyl)methanone (2 g, 10 mmol) in THF was added slowly over a period of 10 min and stirred at −40° C. to −30° C. for one hour. Then Ethyl(trimethylsilyl)acetate (2.42 g, 15.1 mmol) was added drop wise and stirred at 0° C. to 15° C. for completion of starting material (4 h). After reaction completed reaction was quenched with ammonium chloride and then THF was evaporated under vacuum and the resulted solution was partitioned between water and Ethyl acetate. The combined organic layer was dried and evaporated to get crude. The crude was purified through chromatography and triturated with n-Hexane to afford red color oil as product (1.5 g, Yield: 55.9%); 1H NMR (300 MHz, CDCl3): δ 7.31-7.33 (m, 4H), 7.01-7.74 (d, 1H), 6.7-7.16 (m, 4H), 6.25 (s, 1H), 3.94-3.99 (q, 2H), 1.07-1.10 (t, 3H)

Provenance & Evidence