Organic 9: Alkynes

Question 1

Alkynes

Answer 1

hydrocarbons that contain a carbon-carbon triple bond

Question 2

Terminal (monosubstituted) alkynes

Answer 2

compounds with their triple bond at the end of a carbon chain

Question 3

Fatty acids

Answer 3

carboxylic acids with unbranched chains of 12-20 carbon atoms

Question 4

Carbanion

Answer 4

the conjugate base of a hydrocarbon; an anion in which the negative charge is borne by carbon

Question 5

Alkylation

Answer 5

reactions that attach alkyl groups to molecular fragments

Question 6

Geminal dihalide

Answer 6

a dihalide in which both halogens are on the same carbon

Question 7

Vicinal dihalide

Answer 7

a dihalide in which the halogens are on adjacent carbons

Question 8

Lindlar catalyst

Answer 8

most frequently used special hydrogenation catalyst; a palladium on calcium carbonate combination to which lead acetate and quinoline have been added

Question 9

Enol

Answer 9

an alcohol in which the hydroxyl group is a substituent on a carbon-carbon double bond; important property is rapid isomerization to aldehydes or ketones under the conditions of their formation

Question 10

Keto

Answer 10

a tautomeric form that contains a carbonyl group

Question 11

Tautomers

Answer 11

constitutional isomers that equilibrate by migration of an atom or group

Question 12

Tautomerism

Answer 12

equilibration of tautomers