成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
010-86108875
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 3-Fluoropropiophenone
455-67-4

3-Fluoropropiophenone synthesis

8synthesis methods
-

Yield:-

Reaction Conditions:

with Jones reagent in acetone at 0 - 10; for 3 h;

Steps:

2

Example 2Preparation of 3-fluoropropiophenone350 ml of Jones reagent was added dropwise to 100 g of 1-(3-fluorophenyl)propan-1-ol in 1 L of acetone at 0 to 10° C., over a period of two hours. The reaction solution was stirred at 0 to 10° C. for additional 1 hour. The solvent was removed in vacuo. The reaction solution was extracted with 400 ml of DCM and organic layer was dried over sodium sulfate. The solvent was removed in vacuo. After drying, 120 g of 3-fluoropropiophenone were obtained as a yellow oil and taken as such to the next step 1H NMR (CDCl3): δ=1.3 (t, 3H, -CH2-CH3, 2.95 (q, 2H, CO-CH2-CH3), 7.25 (m, 1H, Ar 5-H), 7.43 (m, 1H, Ar-4H), 7.63 (q, 1H, Ar-6H), 7.75 (bd, 1H, Ar-4H)

References:

US2008/221358,2008,A1 Location in patent:Page/Page column 4

3-Fluoropropiophenone Related Search: