Which one of the following compounds will yield 2.5,5-trimethylcyclohexane-1,3-dione., when treated with NaOCH3, followed by H3O* and heat? O methyl 2.2-dimethyl-5-oxoheptanoate O methyl 6-methyl-5-oxoheptanoate O methyl 4-ethyl-5-oxooctanoate O methyl 3-ethyl-5-oxooctanoate O methyl 3,3-dimethyl-5-oxoheptanoate
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- Predict the product(s) you would expect from treatment of each compound with (1) dilute,neutral KMnO4 and (2) warm basic KMnO4, then dilute acid.(a) hex-1-yne (b) hex-2-yne (c) hex-3-yne(d) 2-methylhex-3-yne (e) cyclodecyneThe following reactivity order has been found for the saponification of alkyl acetates by aqueous NaOH. Explain. CH3CO2CH3 > CH3CO2CH2CH3 > CH3CO2CH(CH3)2 > CH3CO2C(CH3)3Acid-catalyzed hydrolysis of a 1, 2-epoxycyclohexane produces a transdiaxial 1, 2-diol. What product would you expect to obtain from acidic hydrolysis of cis-3-tert-butyl-l, 2-epoxycyclohexane? (Recall that the bulky tert-butyl group locks the cyclohexane ring into a specific conformation.)
- Provide the product most likely to form from reaction of each reagent with 1-methylcyclohexene. You may ingore stereochemistry for this question. Br2 H-Br H-Br, PhC(O)OOC(O)Ph N-bromosuccinimide, PhC(O)OOC(O)Ph A. B. C. D.Prop-1-yne plus 1) sodium; 2) CH3COCH2CH3; 3) dilute acid will yield ___________. 2,2-dimethyl-pentanoic acid 3,3-dimethyl-pent-4-yne-2-ol 3-methyl-hex-4-yne-3-ol 2,2-dimethyl-pent-3-yne-1-ol 3-methyl-hex-4-yne-3-oneQa 18. Bromination of 5a-cholestan-3-one occurs at C-2 or C-4 to give 2 regioisomers. Two unsaturated ketones with lambdamax = 230 nm and lambdamax = 241 nm are yielded during dehydrobromination. Use Woodward-Fieser rules to distinguish between the two.
- Predict the major products of the following reactions, including stereochemistry where appropriate.(a) (R)@butan@2@ol + TsCl in pyridine (b) (S)-2-butyl tosylate + NaBr(c) cyclooctanol + NaOCl>HOAc (d) cyclopentylmethanol + CrO3 # pyridine # HCl(e) cyclopentylmethanol + Na2Cr2O7>H2SO4 (f) cyclopentanol + HCl>ZnCl2(g) n@butanol + HBr (h) cyclooctylmethanol + CH3CH2MgBr(i) potassium tert@butoxide + methyl iodide (j) sodium methoxide + tert@butyl iodide(k) cyclopentanol + H2SO4>heat (l) product from (k) + OsO4>H2O2, then HIO4(m) sodium ethoxide + 1@bromobutane (n) sodium ethoxide + 2@methyl@2@bromobutane(o) octan-1-ol + DMSO + oxalyl chloride (p) 4-cyclopentylhexan-1-ol + DMP reagentThe base-promoted rearrangement of an a-haloketone to a carboxylic acid, known as the Favorskii rearrangement, is illustrated by the conversion of 2-chlorocyclohexanone to cyclopentanecarboxylic acid. Jo Han Sow La NaOH, THF O Nat H3O+ OH NaOH, THF The mechanism involves the following 5 steps: -ō cyclopropanone intermediate 1. Abstraction of a proton to form enolate anion 1; 2. Formation of a cyclopropanone intermediate 2 with expulsion of chloride ion; 3. Addition of hydroxide ion to form tetrahedral intermediate 3; 4. Collapse of the tetrahedral intermediate and breakage of the three-membered ring to form carbanion intermediate 4; 5. Proton transfer to form the rearranged carboxylic acid. For the following reaction, draw the reaction out on paper, and then draw the structure of cyclopropanone intermediate 2 in the window. 1. NaOH, THF 2. H3O* OHWhich of the following statements best describes the stereospecificity of the resultingproduct of oxidation of an alkene using KmNO4? *Hydroxyl groups are found on opposite side.Alcohol groups undergo bond rotation.Alcohol groups are transformed into acids.Hydroxyl groups are found on the same side.What is the expected product from the hydrohalogenation of hex-1-ene using HCl? *1-chlorohexane1-chlorohex-1-ene1,2-dichlorohexane2-chlorohexane
- Draw all products of the reaction of (1S,2R)-1-bromo-1,2-dimethylcyclohexane in 80%H2O/20%CH3CH2OHat room temperature..What are the reaction products of (R)-3-methylcyclohexene in the reaction sequence of hydroboration-oxidation: I- (1S,2R)-2-methylcyclohexanol + (1R,2R)-2-methylcyclohexanol, barely II- (1S,2R)-2-methylcyclohexanol + (1R,2S)-2-methylcyclohexanol, barely III- (1S,3R)-3-methylcyclohexanol + (1R,3R)-3-methylcyclohexanol, barely IV- (1S,3R)-3-methylcyclohexanol + (1S,3S)-3-methylcyclohexanol, barely V- Alternatives I and III contain the reaction products VI- ndaWhat reagents in what order would you use to convert 1,2-dimethylcyclohexane to trans-1,2-dimethyl-1,2-dihydroxycyclohexane? Please write/type out the reagents Thanks!