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
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 4-FLUORO-3-METHOXYBENZALDEHYDE
128495-46-5

4-FLUORO-3-METHOXYBENZALDEHYDE synthesis

7synthesis methods
-

Yield:128495-46-5 85%

Reaction Conditions:

with manganese(IV) oxide in dichloromethane; for 16 h;Heating / reflux;

Steps:

16 EXAMPLE 16; 4-FLUORO-3-METHOXYBENZALDEHYDE

(4-FLUORO-3-METHOXYPHENYL) METHANOL (5. 00G, 0. 03mol) and manganese dioxide (33.4g, 0. 38MOL) were stirred in DICHLOROMETHANE (100ml) under an atmosphere of nitrogen, at gentle reflux for 16 hours. The cooled reaction mixture was then filtered through arbacel and concentrated in vacuo to give the title compound as a white solid (4.18g, 0. 027MOL, 85%). 1H NMR (CDCI3, 400MHZ) 8 : 3.96 (s, 3H), 7.23 (d, 1H), 7.43 (m, 1 H), 7.50 (d, 1 H) 9.91 (s, 1H). Mpt: 61-63°C. Analysis found C, 62.18 ; H, 4.54%. C8H7FO2 requires C, 62.34 ; H, 4.58%.

References:

WO2004/52372,2004,A1 Location in patent:Page 72

4-FLUORO-3-METHOXYBENZALDEHYDE Related Search: