Homework Answers
Alkyne on reduction with Na/NH3(l) form trans alkene.
Alkene reacts with MCPBA to form epoxide.
Epoxide on hydrolysis form diols.
CIP rules:
* Assign the priority order to the groups based on the atomic
number.
* Highest atomic number atom gets first priority and least atomic
number atom gets 4th priority.
* If the first atom is same then check the second atom.
* If the priority order from 1---> 2 ----> 3 is clockwise
then it has R configuration.
* If the priority order from 1----> 2 ----> 3 is
anticlockwise then it S configuration.
Note: If the least priority present on above the plane or Highest priority group present in below the plane then it's configuration is reversed.
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8. Draw stereochemical drawings of the product(s) of each of the following reactions (use the wedge...
6&8 OH A. Place a on cach chiral enters in compounds above. B. Draw a Fisher...
6&8
OH A. Place a on cach chiral enters in compounds above. B. Draw a Fisher projection of A and label it C. Draw all possible dinstereomers of A. D. How many total stereoisomers are possible for A (including All Label any meso compounds that you have drawn or were drawn for you Select the term that best describes the relationship between the following structure drawings: A identical C. diasteroomers B. enantiomers SCH CH.CH OCH Kajan BE H ISH, HCY...
1) Predict the Products: Using line drawings with proper use of dashed wedge and solid wedge...
1) Predict the Products: Using line drawings with proper use of
dashed wedge and solid wedge notation where necessary, draw the
major organic products of the following reactions in the boxes
provided. If no reaction occurs write “no reaction” or “N.R.” in
the box. Include stereochemistry in your answers where appropriate.
If a product is racemic draw both enantiomers or write “racemic”
next to the structure. Assume all reagents written above and below
the arrows are present in excess unless...
Complete the following reactions by drawing the structure of the major organic product. ( CH3 mCPBA...
Complete the following reactions by drawing the structure of the
major organic product.
( CH3 mCPBA CH₂O₂ show dash-wedge CH3 (1) LiAlH draw a chair conformation (2) H30+ NaB (CN) Hz H LII2 C5H1N CH2OH solvent
Draw the major organic product(s) of the following reactions. Don’t forget to use wedge/dash notation where...
Draw the major organic product(s) of the following reactions.
Don’t forget to use wedge/dash notation where
appropriate. If no reaction is expected write NR.
add steps please
RCOH CH2Cl2 Сн,
s/reactants of the SN2 reactions below. Be very careful of the stereochemistry if applicable. 8. Provide...
s/reactants of the SN2 reactions below. Be very careful of the stereochemistry if applicable. 8. Provide the products/reactants of the SX2 reactions below Please compare every two consecutive reactions. (1 pts, 0.25 pt each) Br + Na :C Hint: Na, and K are very easy to dissociate as Na' and K. + KCN CN + KBT + NaCl .. . + Na S-CHg dl. What is the type of the halide (1º, 2º, 3º)? d2. Which reactant is the nucleophile?...
Draw the major product formed when HBr reacts with the following epoxide. Use wedge/dash bonds, including H\'s at each...
Draw the major product formed when HBr reacts with the following
epoxide. Use wedge/dash bonds, including H\'s at each stereogenic
center, to show the stereochemistry of the product.
1. Draw the dash-wedge structure that corresponds to the following Newman proje OH Htci CH CH3...
1. Draw the dash-wedge structure that corresponds to the following Newman proje OH Htci CH CH3 4 Label each stereocenter in the following molecule with an asterisk (*) and identity it as na configuration. molecule with an asterisk (*) and identify it as having an R or an S NH2 3. Draw the most stable chair conformation for the following molecule. 4. Draw 3-ethoxypentane. 5. Assign the priority of the substituents around the asymmetric carbon. Br H I BY BE
1. Draw the major product(s) of the following, show wedge dash notation when it is appropriate....
1. Draw the major product(s) of the following, show wedge dash notation when it is appropriate. I < CH3CH2OH cat. H2SO4 we chama w W.com 0 1. Hg(OAC)2, H20 2. NaBH4 2. The following reaction makes 4 steroisomeric products, draw them and tell how they are related. HCI 7 HCI
Page - 5 - of 9 5A) DRAW expected product(s). INCLUDE stereochemical outcomes if they occur......
Page - 5 - of 9 5A) DRAW expected product(s). INCLUDE stereochemical outcomes if they occur... Starting Material Reagents or Reaction KMnO4 Both final products Carbene 1 Rxn: Dimethyl carbene (singlet HC CHE Both products Carbene 2 Rxn: Dimethyl carbene [ singlet ] ㅂ H₃C. CH, Product or products... Carbene 3 Rxn: Dimethyl carbene [ triplet HC CH3 Product or products... 5) What is the relationship of the products in "Carbene 1 Rxn" ? identical enantiomers diastereomers meso not related...
For the following SN2 reaction, draw the major organic product and select the correct (R) or (S) designation around the stereocenter carbon in the organic substrate and organic product
For the following SN2 reaction, draw the major organic product
and select the correct (R) or (S) designation around the
stereocenter carbon in the organic substrate and organic product.
Include wedge/dash bonds and H on a stereocenter. The correct (R) or (S) designations for the stereocenter carbons are: The organic substrate is (S) and the organic product is (R). The organic substrate is (R) and the organic product is (S). The organic substrate and organic product are both (S). The organic substrate and organic product...
6&8
OH A. Place a on cach chiral enters in compounds above. B. Draw a Fisher projection of A and label it C. Draw all possible dinstereomers of A. D. How many total stereoisomers are possible for A (including All Label any meso compounds that you have drawn or were drawn for you Select the term that best describes the relationship between the following structure drawings: A identical C. diasteroomers B. enantiomers SCH CH.CH OCH Kajan BE H ISH, HCY...
1) Predict the Products: Using line drawings with proper use of
dashed wedge and solid wedge notation where necessary, draw the
major organic products of the following reactions in the boxes
provided. If no reaction occurs write “no reaction” or “N.R.” in
the box. Include stereochemistry in your answers where appropriate.
If a product is racemic draw both enantiomers or write “racemic”
next to the structure. Assume all reagents written above and below
the arrows are present in excess unless...
Complete the following reactions by drawing the structure of the
major organic product.
( CH3 mCPBA CH₂O₂ show dash-wedge CH3 (1) LiAlH draw a chair conformation (2) H30+ NaB (CN) Hz H LII2 C5H1N CH2OH solvent
Draw the major organic product(s) of the following reactions.
Don’t forget to use wedge/dash notation where
appropriate. If no reaction is expected write NR.
add steps please
RCOH CH2Cl2 Сн,
s/reactants of the SN2 reactions below. Be very careful of the stereochemistry if applicable. 8. Provide the products/reactants of the SX2 reactions below Please compare every two consecutive reactions. (1 pts, 0.25 pt each) Br + Na :C Hint: Na, and K are very easy to dissociate as Na' and K. + KCN CN + KBT + NaCl .. . + Na S-CHg dl. What is the type of the halide (1º, 2º, 3º)? d2. Which reactant is the nucleophile?...
Draw the major product formed when HBr reacts with the following
epoxide. Use wedge/dash bonds, including H\'s at each stereogenic
center, to show the stereochemistry of the product.
1. Draw the dash-wedge structure that corresponds to the following Newman proje OH Htci CH CH3 4 Label each stereocenter in the following molecule with an asterisk (*) and identity it as na configuration. molecule with an asterisk (*) and identify it as having an R or an S NH2 3. Draw the most stable chair conformation for the following molecule. 4. Draw 3-ethoxypentane. 5. Assign the priority of the substituents around the asymmetric carbon. Br H I BY BE
1. Draw the major product(s) of the following, show wedge dash notation when it is appropriate. I < CH3CH2OH cat. H2SO4 we chama w W.com 0 1. Hg(OAC)2, H20 2. NaBH4 2. The following reaction makes 4 steroisomeric products, draw them and tell how they are related. HCI 7 HCI
Page - 5 - of 9 5A) DRAW expected product(s). INCLUDE stereochemical outcomes if they occur... Starting Material Reagents or Reaction KMnO4 Both final products Carbene 1 Rxn: Dimethyl carbene (singlet HC CHE Both products Carbene 2 Rxn: Dimethyl carbene [ singlet ] ㅂ H₃C. CH, Product or products... Carbene 3 Rxn: Dimethyl carbene [ triplet HC CH3 Product or products... 5) What is the relationship of the products in "Carbene 1 Rxn" ? identical enantiomers diastereomers meso not related...
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