Read More
Date: 12-7-2018
1163
Date: 21-11-2019
707
Date: 28-7-2019
1206
|
Earlier, we examined the aldol reactions as a nucleophilic carbonyl addition in section 20.6, in which the electrophile is the carbonyl carbon of an aldehyde or ketone. A nucleophilic enolate can also attack the carbonyl carbon of a carboxylic acid derivative in a nucleophilic acyl substitution reaction.
This is referred to as a Claisen condensation, after the German chemist Ludwig Claisen (1851-1930).
Basic reaction
Going from reactants to products simply
|
|
تجربة بسيطة مدتها 3 دقائق تحسن النظر كثيرا
|
|
|
|
|
الصين.. تطوير محفز نانوي رخيص الثمن لتنقية المياه من النترات
|
|
|
|
|
بحضور علمائي ورسمي .. العتبة العلوية المقدسة ترفع راية الحزن والحداد إيذاناً بحلول شهر محرم الحرام
|
|
|