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!

859843-60-0

ETHYL 4-(2-HYDROXY-5-METHYL-3-NITROPHENYL)-2,4-DIOXOBUTANOATE synthesis

2synthesis methods
-

Yield:859843-60-0 86%

Reaction Conditions:

Stage #1: 2-hydroxy-5-methyl-3-nitroacetophenonewith sodium ethanolate in ethanol; for 0.5 h;
Stage #2: oxalic acid diethyl ester in ethanol; for 2 h;Heating;Claisen condensation;

References:

Anderluh, Marko;Marc, Gasper;Dolenc, Marija Sollner [Synthetic Communications,2005,vol. 35,# 11,p. 1461 - 1470]