天堂网亚洲,天天操天天搞,91视频高清,菠萝蜜视频在线观看入口,美女视频性感美女视频,95丝袜美女视频国产,超高清美女视频图片

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 5-(4-CHLOROPHENYL)ISOXAZOLE-3-CARBOXALD&
763109-09-7

5-(4-CHLOROPHENYL)ISOXAZOLE-3-CARBOXALD& synthesis

3synthesis methods
-

Yield:-

Reaction Conditions:

with Dess-Martin periodane in dichloromethane at 20; for 1 h;

Steps:

27.A

To [3-(4-chlorophenyl)-5-isoxazolyl]methanol (4.55 g, 21.8 mmol) in DCM (50 mL) was added Dess-Martin periodinane (10.15 g, 23.94 mmol) and the resulting mixture was stirred at room temperature for 1 h. The resulting mixture was then diluted with DCM, washed with 10% Na2S2O3, saturated aqueous NaHCO3, dried with Na2SO4, and concentrated in vacuo. The resulting residue was filtered through a bed of silica to yield a residue, which was used in the next step without further purification. MS 208 (M+1)+

References:

US2009/275594,2009,A1 Location in patent:Page/Page column 28

5-(4-CHLOROPHENYL)ISOXAZOLE-3-CARBOXALD& Related Search: