Concept explainers
Interpretation:
For the below compound the chirality centers has to be labeled and number of chiral centers should be determined.
Concept introduction:
Chirality center:
When a carbon atom is bonded to four different groups, then that carbon is named as chiral carbon and it is called as chirality center. Generally, the carbon atom contains tetrahedral valency, therefore it bonded to four atoms or molecules. The chiral center is bonded with four different elements or groups. If the single carbon atom is bonded to two or more identical group or atom, then it is also not considered as chiral carbon. In addition to this, if the carbon atom contains multiple bond then it does not able to bond with four different groups then it is not considered to be as a chirality center.
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
Principles of General, Organic, Biological Chemistry
- The structures of 4 isomers of ketopentose are shown. 1) which of the structures are diastereomers of structure A? C, B, or D 2) which of the structures are enantiomers of structure C? B, A, or D 3) which of the structures are stereoisomers of strcuture A?C, D, or Barrow_forwardCellobiose, a disaccharide obtained by the hydrolysis of cellulose, is composed of two glucose units joined together in a 1→4-β-glycoside bond. What is the structure of cellobiose?arrow_forwardPlease draw the expanded structure of D-altrose and its Fischer Projection (chiral C represented as a cross).arrow_forward
- Propose structural formulas for the following polysaccharides. Q.) Pectic acid is the main component of pectin, which is responsible for the formation of jellies from fruits and berries. Pectic acid is a polymer of d-galacturonic acid in the pyranose form joined by a-1,4-glycosidic bonds.arrow_forwardHow many stereocenters are present in D-glucose? How many stereocenters are present in D-ribose? How many stereoisomers are possible for D-glucose? How many stereoisomers are possible for D-ribose?arrow_forwardWhich compund is optically inactive?arrow_forward
- A. Assign each chiral center as R or S B. draw a diastereomer of ephedrine.arrow_forwardHow many chiral centers are in B-d-glucopyranose and a-D-galactopyranose? How many stereoisomers of these two aldohexoses can theoretically be drawn?arrow_forwardA reddish color is obtained when compound A (a disaccharide) is reacted with Benedict solution. Is this compound more likely maltose or sucrosearrow_forward
- Answer the following questions about the eight aldopentoses: Which form an optically active compound when oxidized with nitric acid?arrow_forwardHow many chirality centres are present in glucose?arrow_forwardDraw the enantiomer and any two diastereomers of cholesterol. Does the OH group of cholesterol occupy an axial or equatorial position?arrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningMacroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks ColeIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning