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Date: 30-10-2020
946
Date: 28-7-2018
957
Date: 11-9-2018
550
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Several methods for reducing nitro groups to amines are known. These include catalytic hydrogenation (H2 + Pd/C), zinc or tin in dilute HCl, and sodium sulfide in ammonium hydroxide solution.
During this reaction the hydride nucleophile attacks the electrophilic carbon in the nitrile to form an imine anion. Once stabilized by a Lewis acid-base complexation the imine salt can accept a second hydride to form a dianion. The dianion can then be converted to an amine by addition of water.
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دراسة: عدم ترتيب الغرفة قد يدل على مشاكل نفسية
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علماء: تغير المناخ تسبب في ارتفاع الحرارة خلال موسم الحج
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العتبة العباسية تطلق المؤتمر العلمي لأسبوع الإمامة باللغة الإنجليزية
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