How many chiral carbon atoms exist in the following compound? (Fill in a number) |
How many possible stereoisomers are there of dextrose, an
organic compound found in Lactaid and also in blood-sugar in
hospital IVs? (Fill in a number)
Is the letter "J" chiral or achiral?
Achiral |
Chiral |
How many chiral carbon atoms exist in 5-chloro-1-pentanol? (Fill in a number)
How many chiral carbon atoms exist in 3-chloro-2-pentanol? (Fill in a number)
How many possible stereoisomers are there of 2-propanol? (Fill in a number)
How many chiral carbon atoms exist in methyl jasmonate, one of
the compounds responsible for the scent of jasmine? (Fill in a
number)
How many possible stereoisomers are there of 2-butanol? (Fill in a number)
How many chiral carbon atoms exist in nerolidol, one of the
compounds responsible for the scent of night-active,
moth-pollinated flowers? (Fill in a number)
How many chiral carbon atoms exist in 1,2-dichloro-2-methyl-1-phenylpropane? (Fill in a number)
A carbon is chiral if it has four different groups attached to it.
How many chiral carbon atoms exist in the following compound? (Fill in a number) How many...
COSTO1Q4017 How many chiral carbon atoms exist in phenylephrine, one of the compounds found in Preparation H? (Fill in a number) OH но н–N
How many chiral carbon atoms does each molecule have and how many total stereoisomers are possible? a. CH3CHCHCHCH3 CH2CH3 number of chiral carbon atoms number of total possible stereoisomers OH b. CH3CHCH2CHCH; CH3 number of chiral carbon atoms 2 number of total possible stereoisomers 4 OH O c. HOCH CHCHÖCH,OH OH number of chiral carbon atoms number of total possible stereoisomers
B. STEREOISOMERS Star the chiral carbon in each of the following molecules. Then indicate how many forms exist for those compounds with at least one chiral carbon. OH OH OH OH O CH3 a) b) HOC2- CH-CH-CH-CH-CH CH3-CHCH2OH OH c) CHCH3 d) CH3CCH2CH3
1. In the following molecule, indicate each of the chiral carbon atoms (put a star or arrow next to it) and calculate the number of stereoisomers of the compound that could exist. HO 2. Is this molecule definitely, possibly, or definitely not optically active? (circle one)
What are the configurations of the chiral carbon atoms in this compound? Carbon atom number 1 is the carbon containing the aldehyde. Сно неон ньон Сн,он О (2R,35) О (25,35) оооо О(2s,ЗR) О (2R,3R)
... Indicate which atoms in the following compound are chiral centers. (Provide a list of letters without spacing. Alphabetize your list (abcd).) Chiral centers How many stereoisomers do you expect for this compound?o
Which of the following statements is true regarding 13C-NMR How many stereoisomers are possible for 1-bromo-6-methyl-4-heptene-2-ol? Which of the following statements is true regarding symmetrical compounds in NMR experiments? Which of the following statements is true regarding C-NMR a. Carbon-13 is more sensitive than hydrogen NMR b. Carbon-13 resonances appear over a broader range than H-NMR c. Carbon-13 does not couple do adjacent carbons d. Carbon-13 nuclei cannot couple with Hydrogen nuclei How many stereoisomers are possible for 1-bromo-6-methyl-4-heptene-2-ol? a....
QUESTION 26 1. How many chiral carbon atoms are in this molecule?
3. (4 pts) Complete the Fischer projection drawn below by adding the four substituents to the chiral carbon of (s)-2-methyl-3-bromo-hexane. 4. (4 pts) Draw a wedge and dash structure representing (1R 2R,3S)-1,2- dichloro3-ethylcyclohexane. 5. (4pts) 2-bromobutane is shown below. Is this (R)-2-bromobutane or (S)-2 bromobutane? 6. (6 pts) For each chiral carbon in ascorbic acid (vitamin C), shown below, assign Ror S to each stereocenter. How many stereoisomers of ascorbic acid are possible? OH HO ОН 7. (9 pts) (Are...
2.1. Name the following compound. Specify cis/trans geometry, if applicable. Q.2. Draw line structure for cis-4-methyl-2-hexene. 03. Draw a strucrure with molecular formula CH,20 which exhibits cis/trans isomerism, and also has a chiral center. How many stereoisomers are possible for this molecular formular? Q.4. What is the index of hydrogen deficiency of a compound with molecular formula C-H, BINO? Q.5. How many stereoisomers of 4-chloro-2-pentene exist? a 1 6 . 2 c. 3 d. 4.