Indicate the number of carbons in each of the three chains that start from the bridgehead carbons in the following bicycles.

bicycle nomenclature statement


SOLUTION:

Molecule 1.

molecule 01

Bicyclo[1.1.0]butane
The bridgeheads (red) are linked by two 1-carbon chains. The third chain has 0 carbons [1.1.0].

 

Molecule 2.

molecule 02

Bicyclo[1.1.1]pentane

The bridgehead carbons (red) are linked by 3 one-carbon chains. [1.1.1]

Molecule 3.
molecule 03

Bicyclo[2.1.0]pentane

Chains of 2,1 and 0 carbons start from the bridgehead carbons (red). [2.1.0]

Molecule 4.
molecule 04

Bicyclo[2.1.1]hexane
Chains of 2, 1 and 1 carbons start from the bridgehead carbons (red). [2.1.1]



IThe following examples describe in more detail how to identify the values that go inside the bracket.

 


summary