Question

conversion aldopentose to aldohexose

Answer 1

⬇⬇answer⬇⬇

The aldohexose is selectively oxidised with Br-water to convert aldehyde into carboxylic acid. ... Wohl's degradation: Here the aldohexose is converted into an oxime by reaction with hydroxylamine. This is further reacted with sod. ✔✔

tysm❤

Answer 2

Hey Dear,

◆ Kiliani–Fischer synthesis -

• It lengthens the aldose chain by 1 CH(OH) & converting it to hexose.
• This reaction takes place through formation of cyanohydrin.
• First the aldose is treated with aq.NaCN to form cyanohydrin which is then hydrolysed to get susequent aldose.

# Reaction -

Aldopentose is first treated with aq.NaCN and then heated with water to obtain aldohexose.

Aldopentose + (NaCN/H2O) --> Aldohexose

Hope this helps you. Keep asking..