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-aminocrotonate
14205-39-1

Methyl 3-aminocrotonate synthesis

4synthesis methods
3-Aminocrotonate Esters, e.g., methyl 3- aminocrotonate [14205-39-1] (3-amino-2-butenoic acid, methyl ester) can be prepared by treatment of acetoacetates with aqueous ammonia. They are mainly used in the production of a series of the dihydropyridine-type calcium antagonists.
-

Yield:14205-39-1 94%

Reaction Conditions:

with ammonia;acetic acidProduct distribution / selectivity;

Steps:

5
Example 5: Process for the preparation of methyl amino crotonate Continuous flow experiment was carried out in a SS316 tubular reactor of 6.35 mm o.d. and 2 m length at 50 e C with a residence time of 120 - 160 s without any solvent. The Methyl aceto acetate to ammonia to catalyst (Acetic acid)- volume ratio of 1:3:0.5 yielded 94% methyl amino crotonate from the first crop. No choking of reactor was observed.

References:

COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH;KULKARNI, Amol, Arvind;JOSHI, Ramesh, Anna;JOSHI, Rohini, Ramesh WO2012/147103, 2012, A2 Location in patent:Page/Page column 6-7

FullText

Methyl 3-aminocrotonate Related Search:

平远县| 海宁市| 漳平市| 玉林市| 浦县| 页游| 敦煌市| 五大连池市| 安龙县| 孟州市| 梧州市| 黔西| 澜沧| 郯城县| 蓝山县| 安乡县| 会昌县| 荥经县| 都昌县| 丹阳市| 贵德县| 桂平市| 巩留县| 新乡县| 嵊泗县| 静海县| 德江县| 额济纳旗| 夹江县| 嘉义县| 上犹县| 闽清县| 金湖县| 恩施市| 元朗区| 太和县| 昭通市| 酉阳| 申扎县| 宝坻区| 天全县|