Define what is the first step in the reaction sequence

Assignment Help Chemistry
Reference no: EM13145717

What is the first step in the reaction sequence of these Aldol reactions under basic conditions? Answer a. Removal of the aldehyde proton b. Removal of an alpha proton to form the enolate c. Direct nucleophilic attack of the carbonyl carbon d. Protonation of the carbonyl oxygen

Reference no: EM13145717

Questions Cloud

What are the drawbacks of using the enterotube system : 1.The Enterotube quickly and conveniently performs a series of twelve different biochemical test. The test Eschericia Coli needs to be researched and describe the procedure for performing it if you are not using an Enterotube.
Interest receivable and interest revenue : Accepted a $12,000, 60-day, 8% note dated December 13 in granting Allie Sumera a time extension on her past-due account receivable. What is the interest receivable and interest revenue?
Contract with the intent of hedging an account payable : A company enters into a futures contract with the intent of hedging an account payable of DM400,000 due on December 31. The contract requires that if the U.S. dollar value of DM400,000 is greater than $200,000 on December 31, the company will be r..
Type of logical fallacy : I need help finding a song that containes any type of logical fallacy. Pleace include the name, type of fallacy, and why. (Cant be a song from the Beatles!)
Define what is the first step in the reaction sequence : What is the first step in the reaction sequence of these Aldol reactions under basic conditions?
Identify what is the best measure of variability to use : Which would be inappropriate, and why. Then identify what you think is the best measure of variability to use for your example and explain why you believe it to be better than the others.
Decisions which affecting the future of business : How are the income statement and statement of cash flows used to make business decisions? What are the advantages and limitations of using them to make decisions affecting the future of a business?
Could an organism be both mr and vp negative : Any organism that uses the Krebs cycle can use citrate and most organisms have the enzymes for the Krebs cycle. Why then do so many organisms test Citrate negative with the citrate test?
Write a program to operate the barriers : The entrance to the car park is on the left hand side. When a car drives into the car park there is a sensor that detects the car and this should cause the barrier to be opened to allow the car in.

Reviews

Write a Review

Chemistry Questions & Answers

  Classify each of the given aqueous solutions

You have given some aqueous solutions as a. LiClO4 b. HClO c. CH2CH3OH d. HClO4 e. HNO3 you just need to Classify each of the given aqueous solutions as a weak electrolyte, non electrolyte, or strong electrolyte ?

  What is the molarity of the strontium ion

The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.

  What is the molar concentration of phosphate ion

The acid-dissociation constants of phosphoric acid (H3PO4) are Ka1 = 7.5 × 10-3, Ka2 = 6.2 × 10-8, 25) and Ka3 = 4.2 × 10-13 at 25.0 °C.

  What is the energy difference

A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.

  Determine the heat released

determine the heat released when (ethene) CH2 CH2 reacts with hydrogen gas and form CH3CH3.If Bond enthalpies given are H H : 436 kJ/mol,C Br : 276 kJ/mol,C C : 612 kJ/mol,C C : 348 kJ/mol,C H : 412 kJ/mol;

  What is the concentration of the total available acid

a student titrates 50.0ml of apple juice and reports the following in the titration to the phenolphthalein end point with 0.1011 M NaOH.

  What is the volume of the shell

a graduated cylinder reads 4 ml of water.then a shell is dropped into it and the water level rises to 12 ml.what is the volume of the shell?

  Formal charge of zero

The formal charge on the P atom is zero and It is best described with three resonance structures.

  Calculated what is the pressure in atm

Calculated what is the pressure in atm using the van der Waals' equation for Oxygen gas under these conditions? For O 2 , it is given a = 1.360 L2atm/mol2 and b = 3.183E-2 L/mol.

  Calculate the number of moles of h2o formed

Calculate the number of moles of H2O formed when 0.200 mole of Ba(OH)2 is treated with 0.500 mol of HClO3 according to the chemical reaction shown below.

  Compute the free energy change

Compute the free energy change needed for transport of sufficient protons to make  gastric juice of 1 litter at the temperature of  37 degree celsius hence expect above reaction will happen spontaneously?

  What is the minimum amount of ethanol needed

The solubility of compound A in ethanol is 0.80g per 100.0mL at 0oC and 5.00g per 100.0mL at 78oC. What is the minimum amount of ethanol needed to recrystallize a 12.00g sample of compound A.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd