Biphenyl esterification [closed]








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[![6,6'-bis(hydroxymethyl)[1,1'-biphenyl]-2,2'-dicarboxylic acid](https://i.stack.imgur.com/GX2eo.jpg)](https://i.stack.imgur.com/GX2eo.jpg)


I was wondering that at optimum temperature can 6,6'-bis(hydroxymethyl)[1,1'-biphenyl]-2,2'-dicarboxylic acid show esterification reaction.


I know that the two phenyl groups aren't in the same plane so is esterification reaction still possible?




[![enter image description here](https://i.stack.imgur.com/UPuxN.png)](https://i.stack.imgur.com/UPuxN.png)


these type of things are possible,


[![enter image description here](https://i.stack.imgur.com/wJNZ4.png)](https://i.stack.imgur.com/wJNZ4.png)




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[![enter image description here](https://i.stack.imgur.com/DkJ0g.png)](https://i.stack.imgur.com/DkJ0g.png)


esterification is possible, check the reference.


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