1) 2,3-dicyanopropionate
2,3-二氰基丙酸酯
1.
Reaction of 2,6-dichloro-4-trifluoromethylaniline with a suspension of nitrosyl sulphuric acid, followed by the reaction with a solution of ethyl 2,3-dicyanopropionate in acetic acid, gave 5-amino-3- cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)pyrazole (1), which was then reacted with acetic anhydride to give 2a, with maleic anhydride to yield 2b, and with benzoyl chloride to afford 2c.
2,6-二氯-4-三氟甲基苯胺经重氮化后与2,3-二氰基丙酸酯反应合成了1-(2,6-二氯-4-三氟甲基苯基)-3-氰基-5-氨基吡唑(1),1与乙酸酐、顺丁烯二酸酐、苯甲酰氯反应得到1的乙酰胺2a、顺丁烯酰亚胺2b和苯甲酰胺2c。
2) methyl 2,3-dicyanopropionate
2,3-二氰基丙酸甲酯
1.
The technique includes diazo-reaction with 2,6-dichloro-4-trifluoro methylaniline,condensation with methyl 2,3-dicyanopropionate.
研究了1-(2,6-二氯-4-三氟甲基苯基)-3-氰基-5-氨基吡唑的改进合成工艺:经2,6-二氯-4-三氟甲基苯胺重氮化反应,再与2,3-二氰基丙酸甲酯缩合,在氨气作用下,甲苯溶液中20~25℃下反应3 h,得到1-(2,6-二氯-4-三氟甲基苯基)-3-氰基-5-氨基吡唑。
3) ethyl 2,3-dicyanopropionate
2,3-二氰基丙酸乙酯
1.
This article introduced a new craft of the synthesis of ethyl 2,3-dicyanopropionate.
本文介绍了一种新的合成2,3-二氰基丙酸乙酯的工艺,与已知的合成工艺相比,该工艺具有产品纯度好(>98%)、收率高(>90%)的特点。
2.
Deep studies were made in this paper on the synthetic technology of the important intermediate of fipronil-ethyl 2,3-dicyanopropionate.
对氟虫腈的重要中间体——2,3-二氰基丙酸乙酯的合成工艺进行了深入的研究。
4) Bis(2,3-dibromopropyl) Allyisocyanurate
二(2,3-二溴丙基)烯丙基异三聚氰酸酯
5) Tris(2,3-dibromopropyl) isocyanurate
三(2,3-二溴丙基)异氰脲酸酯
6) Meso-diethyl 2,3-dicyano-2,3-di(p-X substituted phenyl) succinate
meso-2,3-二氰基-2,3-二苯基丁二酸二乙酯
补充资料：3-氰基丙醛
3515-93-3
分子式: C4H5NO
分子量: 83.09
中文名称: 3-氰基丙醛；(9CI)-4-氧代丁腈；4-氧代丁腈
英文名称: Butanenitrile, 4-oxo-(9CI)；3-formylpropiononitrile；Butanenitrile,4-oxa；Butanenitrile,4-oxo-(9CI)
分子式: C4H5NO
分子量: 83.09
中文名称: 3-氰基丙醛；(9CI)-4-氧代丁腈；4-氧代丁腈
英文名称: Butanenitrile, 4-oxo-(9CI)；3-formylpropiononitrile；Butanenitrile,4-oxa；Butanenitrile,4-oxo-(9CI)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条