State claisen reactions use a stoichiometric amount of base

Reference no: EM13251903

1. 1,3-diester is less acidic than a 1,3-ketoester, which is less acidic than an 1,3-diketone due to increased electron donation by the -OR group of the ester.

2. Claisen reactions use a stoichiometric amount of base and do not polymerize, unlike aldol reactions that use a catalytic amount of base and can polymerize.

3. Beta-hydroxy ketones can be formed by thiazolium catalysis with aldehydes.

4. Aliphatic heterocycles typically act like normal ethers, amines, and thioethers unless there is a large amount of ring strain.

Reference no: EM13251903

Questions Cloud

Determine if the industry is attractive or unattractive : analyze the industry you selected using the Five Forces of Competition Model to determine the impact of each of the five forces.Based on your analysis, determine if the industry is attractive or unattractive PLEASE CITE YOUR WORK.

Construct required circuit with min number of unit transistr : Assuming that only integer multiples of a unit bipolar transistor having IS = 3 x 10-16A can be placed in parallel, and only a single voltage source, VB, is available (Fig. 4.54), construct the required circuit with minimum number of unit transist..

Calculate the density of the sphere : A sphere of mass ofm= 1.40 kg is first placed directly on the plate of an electronic scale. The scale shows 13.73 N as the weight of the object. Calculate the density of the sphere

How union pacific will affected by each of external factors : Describe how Union Pacific will be affected by each of these external factors. the factors are social / demographic, technological, economic, environmental / geographic, and political/legal / governmental segments to understand the general environ..

State claisen reactions use a stoichiometric amount of base : Claisen reactions use a stoichiometric amount of base and do not polymerize, unlike aldol reactions that use a catalytic amount of base and can polymerize.

What must be the power output of the pump : A pump is required to lift a mass of 780kg of water per minute from a well of depth 13.7m and eject it with a speed of 17.9m/s, What must be the power output of the pump

How public relations can take advantage : Elaborate on how public relations can take advantage of one of these characteristics to shape public opinion. Describe and explain at least one example of how this characteristic was a focus of the selected public relations campaign.

Design operational amplifier cicuit that has specifications : Design an operational amplifier cicuit that has the following specifications: Gain=-3; Input impedence>20 kohm You have unlimited number of resistors of values 1,2,5, and 10 kohms and LM741 op amps.

Describe the galvanic cel : Refer to the Galvanic cel below (the contents of each half-cell are written beneath each compartment):

User Account

All Pages