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OChem: Ring Strain


numero0121407

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Hey guys,

 

I am confused about something here. I know that the most strained is cyclopropane, and the no strain one is cyclohexane.

 

EK book says that cyclohexane is zero strain, anything above or below 6 the strain increases, up till 9C, then the trend reverses and the strain starts to decrease.

 

I read online that anything with 14C or greater has the next lowest ring strain after cyclohexane or something along these lines.

 

I would appreciate some confirmation/clearification.

 

Thanks!

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Hey guys,

 

I am confused about something here. I know that the most strained is cyclopropane, and the no strain one is cyclohexane.

 

EK book says that cyclohexane is zero strain, anything above or below 6 the strain increases, up till 9C, then the trend reverses and the strain starts to decrease.

 

I read online that anything with 14C or greater has the next lowest ring strain after cyclohexane or something along these lines.

 

I would appreciate some confirmation/clearification.

 

Thanks!

 

follow EK's guide. i highly doubt you will need to know the precise order, especially for cycloalkanes >14...

 

but just know that ring strain arises from the deviation of angles from the tetrahedral angles (109.5).... hope that helps

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