When 10-methyldecalone is reduced using sodium borohydride, two possible products can be formed. Using chair conformations, draw the two possible products of the hydride reduction
When 10-methyldecalone is reduced using sodium borohydride, two possible products can be formed. Using chair conformations,...
In the box provided, draw the two stereochemical products formed when the ketone shown is reduced with sodium borohydride followed by water. Show correct stereochemistry using wedge-dot structures.I need to see the mechanism for this.3 (4).jpg
Clearly draw the two possible chair conformations of the beta
anomer of D-idose and circle the more stable conformer. Use the
guidelines outlined in the textbook and lecture notes when drawing
chair conformations.
CHO HOH НЕОН HO- H НЕОН CH OH D-idose
On a separate sheet of paper, draw the two alternative chair
conformations for the product formed by the addition of bromine to
4-tert-butylcyclohexene. The Gibbs free-energy differences between
equatorial and axial substituents on a cyclohexane ring are 21
kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the
ratio of the two observed products at 46.0 °C using the following
equation: The gas constant, R, is 8.314 J/K·mol. (Enter your answer
to two significant figures.) Ratio: ____ to 1 Major...
0.25 g of propiophenone
100mg of sodium borohydride
Reduction of Ketones using Sodium Borohydride Virtual Lab CHE242----Prelab OH 1) NaBH4/CH3OH Olescente del Conte CH2CH3 Olan.com CH2CH3 2) NaOH Names Pre-Lab Questions 1. How many moles of propiophenone and sodium borohydride will you use in your experi- ment (show calculations)? Which of these two is the limiting reagent? For full credit, you must explain why it is limiting. 2. Draw a detailed reaction mechanism for the reaction (Make sure your mechanism...
5) Draw the two chair conformations (using stick drawings) for trans-3-tert-butyl-1- isopropylcyclohexane. (10 pts) 6) Draw the Newman Projections for the two chair conformations of trans-3-tert-butyl-1- isopropylcyclohexane. (10 pts)
7. (13 points) For the compound 1-tert-butyl-4-methylcyclohexane: a. Draw the two possible chair conformations for the cis isomer, Which conformation, if either, is more stable? Circle one b. Draw the two possible chair conformations for the cis isomer, Which conformation, if either, is more stable? Circle one trans: C. Between the two more stable isomers circled above, which is more stable? Why?
Draw the structure of the products formed when the sugar below is reacted with sodium borohydride followed by water. On the lines provided, indicate whether each product is optically active (O.A.) or optically inactive (O.I.).Show the mechanism.
From experiment reduction of camphor
2. The major products from the sodium borohydride reduction can be predicted by the effect called 'steric approach control'. However, the major product from the reduction of 4-t-butylcyclohexane is not determined by this factor. Explain.
Sodium borohydride reduction of vanillin
3. Besides reductions of ketones, give specific examples of two other types of reactions that can be conducted using hydride ions 4. Supply the missing product or reagents for each of the following reactions. (1) NaBH (2) H (1) LIAIH CHCCH,CH, CH OH CH CH OHCHOH CH,O NaBH CH,CH,C-
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bromine to 4-tert-butylcyclohexene. The Gibbs free-energy differences between equatorial and axial substituents on a cyclohexane ring are 21 kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the ratio of the two observed products at 34.0 °C using the following equation: AG° = – RT In Keg The gas constant, R, is 8.314 J/K mol. (Enter your answer to two...