δ δ‐ 這傢伙~ | 合法藥品大搜索

Enolates are organic anions derived from the deprotonation of carbonyl compounds. Rarely isolated, they are widely used as reagents in the synthesis of​ ... Read More

Enolates[edit]. Main article: enolate. Deprotonation of enolizable ketones, aldehydes, and esters gives enolates. Read More

2010年12月16日 — 讓我們更詳細地討論「羰分子群carbonyl group」如何影響1個「α氫」的酸性。醛aldehyde pKa17、酮ketone pKa19、酯ester pKa25、二 ... Read More

2019年6月5日 — The Ambident Character of Enolate Anions ... Since the negative charge of an enolate anion is delocalized over the alpha-carbon and the oxygen, ... Read More

2020年9月12日 — The aqueous base conditions used for the aldol condensation are not suitable because the enolate anions of simple carbonyl compounds are ... Read More

Enolates. Enolates are the conjugate bases or anions of enols (like alkoxides are the anions of alcohols) and can be prepared using a base. From ... Read More

Treat a ketone with an appropriate base and can get deprotonation at the α-​position to form an enolate: Enolates are synthetically much more useful than enols ( ... Read More

Formation of enolate anions 烯醇離子哪裡來？ 1. 首先要先了解α-hydrogen 偏酸~. 2. 再來要知道，烯醇的共振(resonance of the enolate anions)~. 這整個東西之間 ... Read More