一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

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!

168084-95-5

3-[(3-CHLOROBENZYL)OXY]BENZALDEHYDE synthesis

2synthesis methods
-

Yield:168084-95-5 74%

Reaction Conditions:

with potassium carbonate in N,N-dimethyl-formamide at 80; for 3 h;

Steps:

8.1 (1) 3 - (3 - chloryl) benzaldehyde preparation

The 3 - hydroxybenzaldehyde (1.0 g, 8.2 mmol) dissolved in 15 mLDMF in, adding 3 - chlorine animal pen bromine (1.84 g, 9.0 mmol), potassium carbonate (1.35 g, 9.8 mmol), 80 °C reaction 3 hours, adding 15 ml distilled water, extracted with ethyl acetate twice (2 × 20 ml), then saturated sodium chloride solution for washing 1 time, dried with anhydrous sodium sulfate. Concentrated, column chromatography, eluting agent is petroleum ether: ethyl acetate=3:1, shall be transparent oil to 1.5 g, yield 74%.

References:

CN107151220,2017,A Location in patent:Paragraph 0178; 0179; 0180; 0181; 0182

3-[(3-CHLOROBENZYL)OXY]BENZALDEHYDE Related Search:

大关县| 竹溪县| 烟台市| 广水市| 明光市| 巴青县| 衡阳市| 奉节县| 贡嘎县| 郯城县| 台南市| 麻阳| 观塘区| 绍兴市| 盐城市| 威海市| 铁岭市| 常熟市| 新巴尔虎右旗| 原阳县| 北流市| 新宁县| 克山县| 阜康市| 松滋市| 昭平县| 汝城县| 时尚| 河曲县| 郴州市| 界首市| 浑源县| 沙洋县| 澳门| 石棉县| 江达县| 咸宁市| 定襄县| 芒康县| 吉林市| 吕梁市|