Predict how many stereoisomeric aldol products will be produced in the following aldol addition. Draw the structures of all the aldol products. Show all relevant sterochemistry.
Predict how many stereoisomeric aldol products will be produced in the following aldol addition. Draw the...
Draw the structures of the aldol addition and condensation products of pentanal. Draw only one final condensation product.
How many different aldol addition products can be formed in the reaction of equal amounts of propanal and butanal with aqueous sodium hydroxide at OC? (Consider only constitutional isomer - not stereoisomers.) C1 OOO QUESTION 2 Which of the following is the aldol addition product of butanal in the presence of sodium hydroxide and water? 2-ethyl-3-hydroxyhexanal C2-methyl-2-hydroxyheptanal C 3-ethyl-2-hydroxyhexanal C2-ethyl-2-hydroxyhexanal QUESTION 3 The reaction of benzophenone in a Aldol self-condensation reaction with sodium hydroxide and water gives which product? C...
3. Draw all the aldol addition products that are formed when a
mixture of acetaldehyde and pentanal is treated with aqueous sodium
hydroxide.
4. A reaction, such as described in question 3, which produces a
mixture of products is generally not useful for organic synthesis.
Suggest a change in the reaction starting materials for question 3
that would produce a single, similar product.
5. Draw a generic mechanism for aldol condensation.
6. The last step for an aldol condensation involves...
Aldol Problems 21.1 Draw the aldol products for the following aldehydes. Aldol Aldol 21.2 Draw the aldol products for the mixed aldol rexns. 「大小是 “ 世 “ 人 21.3 Draw the product for the intramolecular aldol rxn below. 日 Aldol
Predict the major products of the following crossed Claisen
condensations. (Do not draw any aldol byproducts.)
NaOCHẠCH CH,CH-C-CH2 + CH,CH,0-C-OCH.CH NaOCH CH3 CH, -C-CH,CH-C-OCH.CH
Predict the products of the following aldol condensations. Show the products both before and after dehydration. (c) 2 PhầCHO + CH --CH, rot , (a) p-2_CH, + +eu ou
Draw a full mechanism for the Aldol condensation reaction and
predict the product. Show all the elementary step(s) being sure to
include arrows, important electron pairs and any formal charges if
needed.
SHORT ANSWER # 28: Draw a full mechanism for the following transformation Aldol condensation reaction and predict the product. Show all the elementary step(s) being sure to include all arrows, important electron pairs and any formal charges if needed. (8 points) NaOH, HAO heat Aldol condensation product H
1. Predict the major products of the following reactions. (Hint: draw out Tosylate ion) ethyl tosylate + potassium tert-butoxide 2.isobutyl tosylate + NaI 3.(R)-2-hexyl tosylate + NaCN (show sterochemistry) 4.the tosylate of cyclohexylmethanol + excess NH3 5.n-butyl tosylate + sodium acetylide, H−C≡C:−Na+
1. DRAW the monohalogenation products of the following reaction, including relevant sterochemistry of the products. T Heal Light Heat, Light
4. Draw all of the possible Aldol products (B-hydroxycarbonyl) for the following reaction below. Condensation products are not necessary. (3 points) NaOH Aldol Products