10. The compound butane-2,3-diol can exist in three forms, one of which is a meso compound. Which ONE of the Newman projections below is the meso form of butane-2,3-diol? H H OH OH _ A CH3 CH3 CH3 H CH3 H OH H OH H CH3 H CH3 CH3 H OH HO CH3 H но- OH H CH3 CH3 OH OH B C D E

Which structure is consistent with a 1 transition state? 2 CH3 CHs H.C CH 4 3

11) Which Newman projection below has the highest energy. tBuMe Me Me Me Me Me tBu Me -- Me -H- Me Pr Pr tBu Pr Me Pr Me H. tBu C HH D.

Which of the following Newman projections represents (2R,3R)-dibromobutane?

dichloropentane and (2R,3R)-dichloropentane? What is the stereochemical configuration of the enantiomer of (2S,4R)- 2,4-octanediol? (A diol is a compound with two -OH groups.) 5-39 5-40 What are the stereochemical configurations of the two diastereomers of

Which of the following Newman projections represents (2R, 3R)-dibromobutane? H3C. H H3C. H3C H3C. H Br Br H3C Br Br Br None of the other structures are correct representation. Br H Br CH3 H Br CH3 CH3 H

ad lisneg a grizu II Ilo ed 12 to 3+ 5. Which of the following molecules can be converted to a smaller molecule by Fe³+ and H₂O₂? in Но ОН ОН A ОН -ОН CHO Но H то Н ОН CH₂OH B НО но- ОН ОН C COOH ОН нтон 1 CH₂OH H тт D

= III Which of the following line drawings represents the correct stereochemistry of molecule shown in the Newman projection below? H H CH₂CH3 OH H CH3 ОН OH II IV OH O... OH A) I B) II C) III D) IV

11) Label each carbon center as a "R" or "S" center in the following molecules H Br Br X L CBr3 Ph CN 12) What is the correct name for the following molecule? Br H (A) (4S, 2S)-4-bromo-3,3-dimethyl-2-pentanol (B) (4S, 2R)-4-bromo-3,3-dimethyl-2-pentanol (C) (4R, 2S)-4-bromo-3,3-dimethyl-2-pentanol (D) (4R, 2R)-4-bromo-3,3-dimethyl-2-pentanol (E) (4R, 2R)-2-bromo-3,3-dimethyl-4-pentanol 11. HO!!!!!! |||||ON

Can i get help step by step please