アミノマロン酸 ジエチル 塩酸塩

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H315：皮膚刺激

  H319：強い眼刺激

  H335：呼吸器への刺激のおそれ

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P264：取扱い後は皮膚をよく洗うこと。

  P264：取扱い後は手や顔をよく洗うこと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P304+P340：吸入した場合：空気の新鮮な場所に移し、呼吸しやすい 姿勢で休息させること。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

  P405：施錠して保管すること。

アミノマロン酸 ジエチル 塩酸塩 価格

MSDS Information

• Aminomalonic acid diethyl ester hydrochloride

アミノマロン酸 ジエチル 塩酸塩 化学特性,用途語,生産方法

• 外観

  白色～うすい黄色、結晶～結晶性粉末

• 化学的特性

  white to slightly yellow crystalline powder

• 使用

  Diethyl aminomalonate hydrochloride is used as a pharmaceutical intermediate. Diethyl aminomalonate with formaldehyde generates an azomethine ylide which can undergo cycloadditions with 1,2-dipolarophiles to form pyrrolidines.

• 合成

  A solution of 420.0 g of a mixture of diethyl hydroxyiminomalonate and diethyl acetoxyiminomalonate (together 2.0 mol) in 400 ml of ethyl acetate, 40.0 g of anhydrous magnesium sulfate and 12.5 g of palladium on activated charcoal (5 percent by weight of Pd) as hydrogenation catalyst were placed in a 1.5 l pressure reactor equipped with a stirrer. At 30° to 35° C., hydrogen was introduced under a pressure of 20 bar for 80 minutes until the pressure remained constant. The reactor contents were thoroughly mixed by stirring during this process. The hydrogenation mixture was cooled to 20° C. and diluted with 200 ml of ethyl acetate and the mixture of hydrous magnesium sulfate and catalyst was filtered off. The solid which had been separated off was washed three times with a total of 200 ml of ethyl acetate and the wash liquor was combined with the filtrate. Diethyl aminomalonate hydrochloride was precipitated out as a white solid by the introduction of 68 g of dry hydrogen chloride, filtered off, washed with ethyl acetate and dried under a water jet vacuum at 70° C. The yield was 359.6 g (85.1% of theory), the melting point was 165° C. and the purity according to the analytically determined chlorine content was 100%.

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アミノマロン酸 ジエチル 塩酸塩 スペクトルデータ(¹HNMR、¹³CNMR、IR1、IR2、MS、Raman)

13433-00-6, アミノマロン酸 ジエチル 塩酸塩 キーワード