Q1.The structures below are: (2pts) A) Enantiomers B) Cis-trans isomers C) Structural isomers D) Both A...
What is the relationship between the pairs of structures below? A. Same compound B. Cis-trans isomers C. Structural isomers D. Different compounds H CH нс CH [Select) CH H CH- H H CH Select] . CH CH CH H Select)
Home ework2 lem 12.67 Identify the following pairs of structures as structural isomers, cis-trans isomers, or the same molecule: Drag the appropriate items to their respective bins. Reset Н-с— сН, Br Br Br and Br and Нас— сH2 н,с-сH, Нас— сн- Br Br Structural isomers cis-trans isomers Same molecule
of each other. 36.) Glucose and galactose are A) anomers B) enantiomers C) epimers D) cis-trans isomers of D-glucose. 37.) D-galactose and D-talose are A) diastereomers B) epimers C) enantiomers D) cis-trans isomers
of each other. 36.) Glucose and galactose are A) anomers B) enantiomers C) epimers D) cis-trans isomers of D-glucose. 37.) D-galactose and D-talose are A) diastereomers B) epimers C) enantiomers D) cis-trans isomers
4) What term describes the structural relationship between cis-1,2-dimethylcyclopentane and trans-1,3-dimethylcyclopentane? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers 5) How many asymmetric carbons are present in the compound below? CH H (CH)CH A)0 B) 1 C) 2 D) 3 E) 4 6) What term describes the structural relationship between (2R,3R,4S)-2,3,4-trichloroheptane and (25,3S,4R)-2,3,4-trichloroheptance? A) not isomers B) constitutional isomers C) enantiomers D) diastereomers E) conformers
2. Draw the structures of the cis-trans isomers for each compound. Label them cis and trans. If no cis-trans isomers exist, write none. a. 2,3-dimethyl-2-pentene b. 1,1-dimethyl-2-ethylcyclopropane c. 1,2-dimethylcyclohexane d. 5-methyl-2-hexene e. 1,2,3-trimethylcyclopropane
Cis-, trans- isomers to 2,3 dibromo-3-phenylpropanoic represents the (D,L) optical isomers (enantiomers) respectively. True False
For the molecule whose condensed structural formula is given below, decide if cis-trans isomers are possible. If they are, enter the name of the cis isomer in the first box and the name of the trans isomer in the second box. If cis-trans isomers are not possible, enter the name of the compound in the first box and leave the second box blank. Do not attempt to put cis or trans in italics. CH3CH2CH=CH2
questions 29 & 30 28 Я B Cis-trans isomers are diastereomers enantiomers stereoisomers constitutional isomers More than one of these choices 29 Pairs of enantiomers are CH3 H. CC CH2CH2CH3 CHE CH CH.CH2CH3 HCC CH2CH2CH3 CH2CH.CH HACCI CHCI HH CH2CH.CH IV I, I and III, IV III, IV IV, V None of the structures. 30 (R)-2-Chlorobutane is represented by CH3 CH3 CH2CH3 CHCI Нccici--cн, Насісін, сісі HH CH.CH, CH.CH CH.CH CH.CH BEKIODIC IVBTE OLIHE ETENEK А | DIV E v
same compound, constitutional isomers (structural isomers), cis-trans isomers, not isomers (different molecular formula). Br a Br C C and Br Br