Phthalimide

Japanese: フタルイミド
Phthalimide

1,2-benzenedicarboximide. C 8 H 5 NO 2 (147.13). It is produced by heating phthalic anhydride with ammonia or ammonium carbonate and then imidizing it. It can also be obtained by dehydrating phthalamide or ammonium phthalate. Sublimable needle crystals. Melting point: 233-235°C. Soluble in hot acetic acid and alkaline aqueous solutions, but sparingly soluble in benzene and ethanol. The hydrogen of NH has a strong protonicity and easily forms N -alkali metal salts. By reacting this with alkyl halides, various N -alkyl derivatives can be produced, which is used in the synthesis of primary amines. In addition, by reacting N -alkali metal salts with halogens, N -halogen compounds can also be obtained. By reacting with hypochlorous acid, it undergoes the Beckmann rearrangement reaction to become anthranilic acid. It is used as a raw material for dyes and pigments. [CAS 85-41-6]

Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition

Japanese:

1,2-benzenedicarboximide.C8H5NO2(147.13).無水フタル酸をアンモニアあるいは炭酸アンモニウムなどと加熱して,イミド化によってつくられる.また,フタルアミドやフタル酸アンモニウムから脱水によっても得られる.昇華性針状晶.融点233~235 ℃.熱酢酸,アルカリ水溶液などに可溶,ベンゼン,エタノールなどに難溶.NHの水素はプロトン性が強く,容易にN-アルカリ金属塩をつくる.これにハロゲン化アルキルを反応させると,種々のN-アルキル誘導体をつくることができ,このことは第一級アミンの合成に利用される.そのほか,N-アルカリ金属塩にハロゲンを作用させるとN-ハロゲン化合物も得られる.また,次亜塩素酸を作用させると,ベックマン転位反応によりアントラニル酸になる.染料,顔料の原料として用いられる.[CAS 85-41-6]

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