How many NMR peaks are there in ethyl acetoacetate?

ethyl acetoacetate CH3COCH2COOCH2CH3 The mass spectrum consists of a molecular ion at 130, an m-15 peak at 115, which is consistent with loss of a CH3 group, an m-43 peak (loss of acylium), an m-45 peak (loss of CH3CH2O-), and a base peak at m-43(m/e = 43) which suggests the formation of an acylium ion (CH3-C O).

What are the hazards of urea?

Eye: May cause eye irritation. Causes redness and pain.

What is ethyl acetoacetate used for?

Ethyl acetoacetate (CH3COCH2COOC2H5), also called acetoacetic ester, an ester widely used as an intermediate in the synthesis of many varieties of organic chemical compounds. Industrially it is employed in the manufacture of synthetic drugs and dyes.

How do you synthesize ethyl acetoacetate?

Ethyl acetoacetate is produced industrially by treatment of diketene with ethanol. The preparation of ethyl acetoacetate is a classic laboratory procedure. It is prepared via the Claisen condensation of ethyl acetate. Two moles of ethyl acetate condense to form one mole each of ethyl acetoacetate and ethanol.

What happens when ethyl acetoacetate is treated with LiAlH4?

The milder reducing agent, NaBH4, will be used to produce the racemic mixture since LiAlH4 would cause reductions at both carbonyl groups (a ketone and an ester) of the starting material. Sucrose will be oxidized while the ethyl acetoacetate is reduced.

What is the boiling point of ethyl acetoacetate?

180.8 °C
Ethyl acetoacetate/Boiling point

Does urea catch fire?

Thus, urea is also strong reducing agent is, but not oxidant. It is even used in cleaning systems from nitrogen oxides: Therefore, in the absence of your mixture outsider’s strong oxidants, it is not flammable and explosive.

Is urea toxic to breathe?

HARMFUL IF SWALLOWED OR INHALED. CAUSES IRRITATION TO SKIN, EYES AND RESPIRATORY TRACT. Inhalation: Causes irritation to the respiratory tract.

How do you remove ethyl acetoacetate?

Add approximately 2-3 mL of DCM and rotavap the sample. Repeat this three more times. This will completely remove Ethyl acetate. You can use vacuum after that if needed.

What does ethyl acetoacetate smell like?

Ethyl acetoacetate appears as a colorless liquid with a fruity odor.

Does LiAlH4 reduce ethers?

LiAlH4 (in ether) reduces aldehydes, carboxylic acids, and esters to 1° alcohols and ketones to 2° alcohols. Acids and Esters – LiAlH4 (but not NaBH4 or catalytic hydrogenation). 15.4: Preparation of Alcohols From Epoxides – the three- membered ring of an epoxide is strained.