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!

ChemicalBook CAS DataBase List Methyl 3,5-dimethoxybenzoate
2150-37-0

Methyl 3,5-dimethoxybenzoate synthesis

13synthesis methods
-

Yield:2150-37-0 97.1%

Reaction Conditions:

with potassium carbonate in acetone at 60; for 3 h;Inert atmosphere;

Steps:

1.1 Synthesis 1, 3, 5 -methoxybenzoic acid methyl ester (B - 1a)
B (200 g, unitunitunito, 1.19 μM eq.), anhydrous potassium carbonate (1 .00, unitunitunit, 3.57 μM 493 g eq.) were added to 3L three-port round bottom reaction flasks, and acetone (2L) was added for mechanical stirring, and 450 g bubbled 3.57 μM out 3 .00, unitarily , heated and refluxed for 3h, 60 °C TLC monitoring the 1 reaction (PE:EA=2: 3 .00).]The reaction mixture was cooled 25 °C, filtered, washed with acetone, filtered and the mother liquor, concentrated under reduced pressure, and the residual oil was added with unitine 200 ml) heavy crystals. (The product was filtered, and vacuum dried to give white solid B - 1a (226 97.1% g

References:

Guangdong Zhongke Pharmaceutical Co., Ltd.;Wang Wei;Wang Yandong;Lu Yongzhang;Tan Jinhui CN109988156, 2019, A Location in patent:Paragraph 0091; 0093; 0094 ;0095

FullText

Methyl 3,5-dimethoxybenzoate Related Search:

宣化县| 湖州市| 东兰县| 广灵县| 定安县| 大石桥市| 大悟县| 莲花县| 区。| 唐山市| 和硕县| 镶黄旗| 板桥市| 墨玉县| 波密县| 陆良县| 岑巩县| 六枝特区| 廊坊市| 博客| 延吉市| 宣武区| 和政县| 湟源县| 巴林右旗| 揭东县| 临西县| 禹城市| 贺兰县| 阿拉善左旗| 合江县| 容城县| 庆元县| 铅山县| 南岸区| 冷水江市| 丰宁| 仁寿县| 库车县| 新营市| 石景山区|