Alkenes Flashcards by Livia Ng

Flashcards in Alkenes Deck (9)

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Structure and bonding in Alkenes

Planar, 120

Why does E-Z isomerism exist?

Rigidity about the pi bond between the carbon-carbon

Stereoisomers

Molecules with the same molecular formula and the same arrangement of covalent bonds but with different spatial orientations of the groups.

E-Z stereoisomers

Stereoisomers with different spatial orientations around the carbon-carbon double bond.

Heterolytic fission

The breaking of a covalent bond which results in both electrons going to the same atom.

An electrophile is

a species which can accept a pair of electrons from a species with a high electron density

Alkene to Alcohol

Step 1: cold concentrated H2SO4
Step 2: warm and add H2O

Markownikoff's rule

The more electronegative part of the electrophile will usually attach itself to the more highly substituted carbon atom

Production of pure ethanol

When alkenes are treated with steam at 300C, a pressure of 60 atmospheres and a phosphoric acid (H3PO4) catalyst, the H2O is added across the double bond and an alcohol is formed in a reaction known as hydration

Alkenes Flashcards Preview

Chemistry AS > Alkenes > Flashcards

Structure and bonding in Alkenes

Planar, 120

Why does E-Z isomerism exist?

Rigidity about the pi bond between the carbon-carbon

Stereoisomers

Molecules with the same molecular formula and the same arrangement of covalent bonds but with different spatial orientations of the groups.

E-Z stereoisomers

Stereoisomers with different spatial orientations around the carbon-carbon double bond.

Heterolytic fission

The breaking of a covalent bond which results in both electrons going to the same atom.

An electrophile is

a species which can accept a pair of electrons from a species with a high electron density

Alkene to Alcohol

Step 1: cold concentrated H2SO4
Step 2: warm and add H2O

Markownikoff's rule

The more electronegative part of the electrophile will usually attach itself to the more highly substituted carbon atom

Production of pure ethanol

When alkenes are treated with steam at 300C, a pressure of 60 atmospheres and a phosphoric acid (H3PO4) catalyst, the H2O is added across the double bond and an alcohol is formed in a reaction known as hydration

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Alkenes Flashcards Preview

Chemistry AS > Alkenes > Flashcards

Structure and bonding in Alkenes

Planar, 120

Why does E-Z isomerism exist?

Rigidity about the pi bond between the carbon-carbon

Stereoisomers

Molecules with the same molecular formula and the same arrangement of covalent bonds but with different spatial orientations of the groups.

E-Z stereoisomers

Stereoisomers with different spatial orientations around the carbon-carbon double bond.

Heterolytic fission

The breaking of a covalent bond which results in both electrons going to the same atom.

An electrophile is

a species which can accept a pair of electrons from a species with a high electron density

Alkene to Alcohol

Step 1: cold concentrated H2SO4Step 2: warm and add H2O

Markownikoff's rule

The more electronegative part of the electrophile will usually attach itself to the more highly substituted carbon atom

Production of pure ethanol

When alkenes are treated with steam at 300C, a pressure of 60 atmospheres and a phosphoric acid (H3PO4) catalyst, the H2O is added across the double bond and an alcohol is formed in a reaction known as hydration

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Step 1: cold concentrated H2SO4
Step 2: warm and add H2O