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sweet [91]
3 years ago
5

Draw the structure of the major organic product isolated from the reaction of 1-hexyne with sodium amide in liquid ammonia follo

wed by 1-bromobutane.

Chemistry
2 answers:
Gemiola [76]3 years ago
5 0

Answer:

CH3(CH2)3CCH --> CH3(CH2)3CCCH2(CH2)2CH3 + NaBr

Explanation:

This reaction are used in the elongation of a terminal alkyne chain, it can be in 2 steps:

Step 1:

NaNH2 is in this reaction is used in the deprotonation of 1-hexyne to give acetylide ions( RCC-). The ion is an nucleophile because of the lone pair of electrons.

Step 2:

This acetylide ion is a basic ion (because 1-hexyne is a weak acid). The alky halide (1-bromobutane) dissociates to form a primary cation and Br- ion. This cation then attacks the acetylide ion, reacts to form carbon-carbon bonds as well as add to carbonyl.

Below is an attachment for the chemical reaction.

77julia77 [94]3 years ago
3 0

Answer:check explanation and attached file/picture

Explanation:

Alkynes are hydrocarbons and they are very acidic because of hybridization effect(the more acidic the s-character is, the more acidic it is going to be).

The reaction of 1-hexyne with sodium amide in liquid ammonia is a form of deprotonation 'reaction' to form acetylide. Due to the acidic nature of the terminal hydrogen atom, terminal alkynes do form metallic derivatives by the replacement of the terminal hydrogens. The equation of Reaction is given below.

C6H10 + NaNH2( in liquidNH3) ------------> C6H9Na + H-NH2.

The acetylide is a bae and a very good nucleophile.

The reaction is then followed by the addition of 1-bromobutane. This reaction is used for the production of longer chain alkynes. The equation of Reaction is attached in the picture.

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8 0
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Answer:

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4 0
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Select the correct answer.
Minchanka [31]

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A.   it is the lowest at low temperatures

Explanation:

It is true with respect to the kinetic energy of a molecule that the it is the lowest at low temperatures.

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3 years ago
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Suppose that 0.25 mole of gas C was added to the mixture without changing the total pressure of the mixture. How does the additi
Yanka [14]

Here we have to get the effect of addition of 0.25 moles of gas C on the mole fraction of gas A in a mixture of gas having constant pressure.

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The valence of lead is 4.

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<h3>Further explanation</h3>

Given

PbO₂ compound

Required

The valence of Pb

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