In Stereochemistry of bromine addition to trans-Cinnamic acid lab we acquired a melting point of which...

In Stereochemistry of bromine addition to trans-Cinnamic acid lab we acquired a melting point of which matched erythro 2 3-dibromo-3-phenylpropanoic acid. Why was the product (or products) formed by anti- addition? explain. what evidence in the lab would help with explaining this? thank you!

Expert Solution

queen_honey_blossom answered 2 years ago

Write an equation for the reaction (ignoring stereochemistry) involving the bromination of a sample of trans-cinnamic...

Write an equation for the reaction (ignoring stereochemistry) involving the bromination of a sample of trans-cinnamic acid(3-phenylpropenoic acid) to form 2,3-dibromo-3-phenylpropanoic acid.

Prelab to accompany bromination of trans-cinnamic acid (4 pts each) The stoichiometry of the addition is...

Prelab to accompany bromination of trans-cinnamic acid (4 pts each) The stoichiometry of the addition is 1:1, meaning that for every one mole of transcinnamic acid, one mole of Br2 is needed to form the addition product. The Br2 presents as a solution in dichloromethane solvent. This often causes problems for students when calculating stiochiometric equivalents. The bromine solution is 10% Br2 by volume. For instance, 100 mL of solution contains 10 mL of liquid Br2. The density of Br2...

When trans-cinnamic acid reacts with bromine, the product is 2,3-dibromo-3-phenylpropanoic acid. You measure out 0.30 g...

When trans-cinnamic acid reacts with bromine, the product is 2,3-dibromo-3-phenylpropanoic acid. You measure out 0.30 g of trans-cinnamic acid, 10 mL of dichloromethane, and a 0.5M solution of bromine. When the reaction is finished, you have 0.223 grams of 2,3-dibromo-3-phenylpropanoic acid. A. How many moles of trans-cinnamic acid was used? B. What is the limiting reagent? C. What is the theoretical yield (in moles)? D. What is the actual yield (in moles)? E. What is the total percent yield?

Why is trans-cinnamic acid soluble in acetone but insoluble in NaOH?

Predict the relative stereochemistry of each product and draw the predicted structures for cinnamic acid, cis-stilbene,...

Predict the relative stereochemistry of each product and draw the predicted structures for cinnamic acid, cis-stilbene, trans-stilbene

Predict the fatty acid with the highest melting point. Select one: a. trans 14:1 (7) b....

Predict the fatty acid with the highest melting point. Select one: a. trans 14:1 (7) b. cis 14:2 (7,9) c. trans 14:2 (7,9) d. cis 14:3 (7,9,11)

Calculate the mass of 10.0 mmol (SS) or 1.00 mmol of trans-cinnamic acid and the theoretical...

Calculate the mass of 10.0 mmol (SS) or 1.00 mmol of trans-cinnamic acid and the theoretical yield of 2,3-dibromo-3-phenylpropanoic acid? m.w of trans-cinnamic acid: 148.2 m.w of 2,3-dibromo-3-phenylpropanoic acid: 308

For the bromination of trans-cinnamic acid, provide two reasons as to why pyridinium bromide perbromide is...

For the bromination of trans-cinnamic acid, provide two reasons as to why pyridinium bromide perbromide is the brominating agent of choice as opposed to elemental bromine. Convert 16.5 mmol pyridinium bromide perbromide to grams Convert 300 mmol glacial acetic acid to mL.

Calculate the mass of 1.00 mmol of trans-cinnamic acid and the theoretical yield of 2,3-dibromo-3-phenylpropanoic acid.

two procedures: 1. a microscale cis-trans isomerization of an alkene 2. a miscroscale addition of bromine...

two procedures: 1. a microscale cis-trans isomerization of an alkene 2. a miscroscale addition of bromine to fumaric acid For each procedure: a. predict which alkene will predominate at equilibrium (please explain) b. predict the stereochemistry of the products formed if the addition of bromine to fumaric acid occurs via: syn addition, anti addition, and stereorandom addition Thank You

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