What is the Major Product When Furan Reacts with Chloroform?

[Titan97]

Homework Statement

What is the major product of the following reaction?

(Its CHCl₃)

Homework Equations

Reimer Tieman reaction

The Attempt at a Solution

This reaction looks like the Riemer-Tiemann reaction. The only difference is the reactant. First step is the formation of carbene.
Then either of the reactions are possible:

But since carbene does not react like an electrophile, It seeks the carbon with higher electron density. That is, it attacks position 3 or 4 to form product (B).
But in case of Pyrole, the major products are:

Why is there a difference in the type of products?

 

[DrDu]

But since carbene does not react like an electrophile,

Why not?

 

[Titan97]

I meant reimer tiemann reaction is not like electrophilic aromatic substitution but involves carbanion formation.

 

[DrDu]

One doesn't exclude the other.

 

[Titan97]

Why doesn't Furan react like pyrrole towards carbene?

 

[Titan97]

Is there any problem with my question?

 

[DrDu]

No, just that I don't know the answer.