# Organic Chemistry - Elimination/substitution

## Homework Statement

I have this problem:
I known that reaction with TsOH would replace -OH groups with TsO (substitution reaction). (Et)3N would therefore act as a base to abstract H to form an alkene. The problem is i know it should be an E1cb reaction but how do I obtain an alkene? I tried to draw the mechanism but comes to no solution can anyone help or am i in the wrong direction?
Compound A would then react with LDA - which I guess is to form alkyne so A should be an alkene) or am I worng?
Thank you!

## Homework Equations

CH3SO2Cl is a good substitution for OH. Et3N is a good base.

## The Attempt at a Solution

(See part 1) Would the compound form be this: I guess not since the compound is relatively unstable

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