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which is a meso compound? Which is a meso compound? O A. (20.4R)-2,4-Dibromopentane O B. (2R,3R)-2,3-Dibromobutane...
draw the fisher projection of 2R, 3R) 2,3-dibromopentane 2S, 3S) 2,3-dibromopentane 2R, 3S) 2,3-dibromopentane 2S, 3R) 2,3-dibromopentane
12 The IUPAC name for the following compound is (circle your choice): (i)(2S, 3S)-2,3-dibromopentane (ii) (2R, 3R)-2,3-dibromopentane CH (iii) (2R, 3S)-2,3-dibromopentane Br - H (iv)(2S, 3S)-2,3-dibromobutane H + Br 13 CH.CH Provide IUPAC names for the followmg compounds. Include trans or cis, E or Z to stereochemistry.
Rank these compounds in terms of acid strength from strongest to weakest. on oma A) I>II> IV > III B) >> I > IV C) > I >> IV D) > >IV> Vhich compound is the best substrate for an S2 reaction? Which compound is meso? A) (2,3R)-2,3-Dibromobutane B) (2,35)-2,3-Dibromopentane C) (2R, 4R)-2,4-Dibromopentane D) (2R.45)-2,4-Dibromopentane Which CHO isomer gives the following H NMR spectrum? y e her
Which is the correct name for the compound shown below? H. O (2R,35)-2-Bromo-3-chlorobutane (25,3R)-2-Bromo-3-chlorobutane (2R, 3R)-2-Bromo-3-chlorobutane (2S,3S)-2-Bromo-3-chlorobutane Which compound is achiral? O meso-2,5-Difluorohexane O trans-1,2-Dimethylcyclohexane O (S)-3-lodohexane (2R, 3R)-2,3-Dibromoheptane 1
Which of the following compounds has a stereoisomer that is a meso compound? Check all that apply. O 1,4-dibromocyclohexane O 1,3-dibromocyclohexane 2,4-dibromopentane O 1,2-dichlorocyclobutane O 2,4-dibromohexane 2,4-dimethylpentane
Both the E and Z diastereomers of 2-pentene can react with bromine to from 2,3-dibromopentane. (E) Br2 arty 4 stereoisomers a. Draw the 4 possible stereoisomers of 2,3-dibromopentane. b. Using a mechanism, prove that E-2-pentene can only form the 2S, 3R and 2R, 3S stereoisomers. c. Using a mechanism, prove that Z-2-pentene can only form the 2S,3S and 2R, 3R stereoisomers.
7. Which of the following structures represent meso compounds? c) 2,2- dibromopentane b) 2,3-Dibromopentane a) 2,3- Dichlorobutane Н. н Н CI CH Н Н g) Br CH Н Br CH
age 7 19. The reaction of CH, CH, CCH, CH, with H,/Ni forms a. pentane. b. one particular chiral pentanol. c. an equimolecular mixture of two chiral pentanols . d. one achiral pentanol. e. no product. 20. The p-orbital of a methyl radical carbon, CH,, Contains how many electrons? a. 1 b. 2 e. 3 d. 4 e. 0 21. (2R, 35)-2,3-Dichlorobutane and (25, 3R) -2,3-dichlorobutane are: a. enantiomers b. diastereomers e. identical d. conformational isomers e. constitutional isomers 22....
The addition of bromine, Br2, to trans-2-butene gives The addition of bromine, Br2, to trans-2-butene gives A) a racemic mixture of (2R,3R) and (2S,3S)-2,3-dibromobutane. B) (2S,3S)-2,3-dibromobutane. C) (2R,3R)-2,3-dibromobutane. D) meso-2,3-dibromobutane.
The addition of bromine, Br2, to trans-2-butene gives The addition of bromine, Br2, to trans-2-butene gives A) a racemic mixture of (2R,3R) and (2S,3S)-2,3-dibromobutane. B) (2S,3S)-2,3-dibromobutane. C) (2R,3R)-2,3-dibromobutane. D) meso-2,3-dibromobutane.