6.
a.) Sketch the cis and trans isomers formed when the anion of the amino acid glycine, H2NCH2CO2- (gly-), reacts with CoCl2.
b.) Which [MA2B2C2] isomers are chiral? Draw all isomers.
6. a.) Sketch the cis and trans isomers formed when the anion of the amino acid...
Sketch the isomers of [Cr(en)2Cl2]+ Identify cis and trans isomers.
Which of the following pairs are cis-trans isomers? Select all the pairs that are cis-trans isomers.
a-pinene When a-pinene reacts with ї. ВНЗ; 2. H202, NaOH, H2O 4 possible cis,trans isomers can be formed, but one of these is formed in over 85% yield. Draw the structure of this preferred isomer. . Use the wedge/hash bond tools to indicate stereochemistry where it exists. - To aid you in your drawing, the structure of a-pinene is provided for you in the drawing palette.
6. Predict which of the following two isomers (cis- or trans-) will undergo an E2 elimination under the treatment with EtoNa in EtOH more rapidly. A) For the explanation of the reaction rate, draw chair conformations for each isomer, determine which conformation is more stable . B) Draw the major product and the mechanism of the reactions. CI cis-isomer trans-isomer
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
o Assign the R/S configuration for each chiral carbon. Qui con la Alkene Cis/Trans isomers have a different alkene geometry, thus they can exhibit stereoisomerism. Cis/Trans alkenes have different physical properties and are not mirror images, they are classified as being diastereomers. o Sketch all the possible stereoisomers for the compound below.
6. Draw and name all the alkene cis-trans isomers corresponding to the molecular formula C5H10. (Hint: there are only two.)
25 For the following pairs of compounds, indicate if they are cis-trans isomers or the same compound. If they are cis-trans isomers, indicate which is the cis isomer and which is the trans isomer and explain why. a. and b. and and
Use a group theory analysis to assign point groups to the cis and all trans isomers of [MA2B2C2]; use the character tables associated with each to determine whether they are chiral or not.
For each molecule, indicate whether cis-trans isomers exist. If they do, draw the two isomers and label them as cis and trans. a. CH3 - CH2 -CH=CH, b. CH3-CH2-CH=CH c. 2-Pentene d. 1,2-Dichloroethene