Nucleophilic Reaction - Nucleophilic Reaction

Japanese: 求核反応 - キュウカクハンノウ

This is an ionic reaction in which the reactive site of the substrate that is attacked by the reagent is electron-deficient (formally positively charged) and a negatively charged ionic species or a reagent with an unshared electron pair donates electrons to the substrate. It is also called a nucleophilic reaction or an anionoid reaction. An electron-donating reagent that acts as a Lewis base is called a nucleophile (nucleophilic reagent). The main nucleophilic reagents are shown in the table.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

イオン反応のうちで，試薬の攻撃を受ける基質の反応部位が電子不足の(形式的には正電荷を帯びた)状態にあり，負電荷をもつイオン種または非共有電子対をもつ試薬が基質に電子を与えるような反応をいう。親核反応，アニオノイド反応anionoid reactionと呼ばれたこともある。ルイス塩基として働く電子供与性試薬は求核試薬nucleophile(nucleophilic reagent)と呼ばれる。おもな求核試薬を表に示す。

出典　株式会社平凡社世界大百科事典第２版について　情報

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