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enol: [noun] an organic compound that contains a hydroxyl group bonded to a carbon atom having a double bond and that is usually characterized by the grouping C=C(OH).
The base-catalysed keto⇌enol interchange is a step-wise process in which the proton is removed initially from either form by the base catalyst to give the same mesomeric anion. This anion will recombine with a proton to give either of the tautomeric forms. Sign in to download full-size image.
Aldehyde tautomerization, enol-form at left, "keto" at right; Ex. is tartronaldehyde (reductone), an enediol -type of enol. Enols, or more formally, alkenols, are a type of reactive structure or intermediate in organic chemistry that is represented as an alkene ( olefin) with a hydroxyl group attached to one end of the alkene double bond.
The enol of acetone (2) is less stable and tautomerizes about 100 times faster than that of acetaldehyde (1).Interestingly, perfluoropropen-2-ol (perfluoroacetone enol) (24) is a distillable liquid (b.p. = 54–55 °C) while perfluoroethenol (perfluoroacetaldehyde enol) (25) is not known.Perfluoropropen-2-ol and analogs have been prepared by thermal decomposition of the corresponding enol ...
Define enol. enol synonyms, enol pronunciation, enol translation, English dictionary definition of enol. n. An organic compound containing a hydroxyl group bonded to a carbon atom, which in turn is doubly bonded to another carbon atom. e·nol′ic adj.
Enol definition, an organic compound containing a hydroxyl group attached to a doubly linked carbon atom, as in >C=C(OH)−. See more.
The preference for the carbonyl form over the enol form derives from the well-known circumstance that the C=O function is imuch more stable than the C=C function. Mechanism of Acid-Catalyzed Enolization . q Enol formation is called “enolization”. The mechanism whereby enols are formed in acidic solution is a simple, two step process, as ...
This structure, which is an alkene with a hydroxyl group attached to one of the doubly bonded carbon atoms, is (not surprisingly) called an enol. Enols and certain corresponding aldehydes or ketones are tautomers, which are forms that differ only by way of a movement of an atom or functional group. Note that the enol form of 3-pentanone is formed by moving the hydrogen atom from the ? carbon ...
Enol, hay alkenol, là tiểu phân trung gian trong hóa học hữu cơ, được biểu diễn dưới dạng anken (hay olefin) với một nhóm hydroxyl gắn vào cacbon chứa liên kết đôi.Các thuật ngữ enol và alkenol có nguồn gốc từ "-en" trong "anken" đi với hậu tố "-ol" (nhóm hydroxyl của alcohol).Enol hình thành nhanh chóng loại bỏ một nguyên ...
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