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Date: 2-9-2019
742
Date: 20-10-2019
1175
Date: 23-8-2019
840
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Most aldehydes and ketones react with 2º-amines to give products known as enamines. It should be noted that, like acetal formation, these are acid-catalyzed reversible reactions in which water is lost. Consequently, enamines are easily converted back to their carbonyl precursors by acid-catalyzed hydrolysis.
1) Nucleophilic addition
2) Proton transfer
3) Protonation of OH
4) Removal of water (nucleophile elimination)
5) Deprotonation
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دراسة يابانية لتقليل مخاطر أمراض المواليد منخفضي الوزن
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اكتشاف أكبر مرجان في العالم قبالة سواحل جزر سليمان
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المجمع العلمي ينظّم ندوة حوارية حول مفهوم العولمة الرقمية في بابل
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