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- An alkene G (C6H12) reacts with cold basic KMnO4 to produce H (C6H14O2). Hydrogenation of Gproduces I (C6H14). Ozonolysis of G produces propanone (CH3COCH3) and propanal(CH3CH2CHO).a) Draw the structure of G, H, I.b) State the reagent(s) and condition for ozonolysis reactionWhat is the major monosubstitution product from the Friedel—Crafts reaction of benzene with 1 -chloro-2-methylpropane in the presence of AlCl3?Dehydrohalogenation of 1-chloro-1-methylcyclopropane affords two alkenes (A and B) as products. Explain why A is the major product despite the fact that it contains the less substituted double bond.
- Cyclohexene (an alkene) is mixed with potassium permanagnate solution (KMnO4). What do you expect to observe? A. The mixture will turn purple as the permanganate is reduced by the alkene. B. The purple colour will disappear as the permanganate is reduced by the alkene. C. Nothing. Permanganate does not react with alkenes. D. The purple colour will disappear as the permanganate is oxidised by the alkene.Which stereoisomer would be produced from the reaction of trans-2-butene with OsO4 followed by H2O2? A. 2S,3S- diol and 2R, 3R-diol B. 2S,3R-diol and 2R,3S-diol C. 2S,3S-diol only D. 2R, 3R-diol only E. 2S,3R-diol onlyDraw the structures of the products obtained from the reaction of each enantiomer of cis-1-chloro-2-isopropylcyclopentane with sodium methoxide in methanol. b. Are all the products optically active? c. How would the products differ if the starting material were the trans isomer? Are these products optically active? d. Will the cis enantiomers or the trans enantiomers form substitution products more rapidly? e. Will the cis enantiomers or the trans enantiomers form elimination products more rapidly?
- 2-Methylpropene reacts with peroxyacetic acid to give A(C4H8O). A reacts with cold concentrated HCI to give B(C4H₂CIO). Draw the structure of B. • You do not have to consider stereochemistry. H.. n [F ? ChemDoodle abDraw the alkene that would react with the reagent given to account for the product formed. CH3 HCI CH3 CHCCH, ? + Či CH3 You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one.7) You want to synthesize 3-methyl-2-pentene from 2-chloro-3-methylpentane. Which reagent would you use? a. HCI, heat b. NH:(aq), 25°C c. CH:CO2NA, CH:CO2H, heat d. CH3CH2ONA, CH3CH2OH, heat e. CН:CH2ОН, heat
- (R)-2-butanol reacts with phosphorus tribromide to give A (C4H9Br). Treatment of A with sodium cyanide in DMF gives B (C5H9)N. B is optically active. Draw the structure of B. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. Show stereochemistry in a meso compound. Sn [F ? ChemDoodleⓇDraw the structure for an alkene that gives the following reaction product. 7 CH2l2, Zn/Cu Ignore alkene stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. / [F ?Draw the organic products formed when cyclopentene is treated with each reagent. With some reagents, no reaction occurs. a.H2 + Pd-C b.H2 + Lindlar catalyst c.Na, NH3 d.CH3CO3H e.[1] CH3CO3H; [2] H2O, HO− f.[1]OsO4 + NMO; [2] NaHSO3, H2O g.KMnO4, H2O, HO− h.[1] LiAlH4; [2] H2O i. [1] O3; [2] CH3SCH3 j.(CH3)3COOH, Ti[OCH(CH3)2]4, (−)-DET k.mCPBA l.Product in (k); then [1] LiAlH4; [2] H2O
