Question

What is ring formation? Biomolecules​

Answer 1

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A ring forming reaction or ring-closing reaction in organic chemistry is a general term for a variety of reactions that introduce one or more rings into a molecule. A heterocycle forming reaction is such a reaction that introduces a new heterocycle.

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Answer 2

Ring Formation- When carbons, aldehyde or ketone group react in carbonyl group and forming sugar in a chain is known as Ring formation.

Some Extra Information-

=> Most of the sugar form cyclic ring which are more stable thqn open chain form.

=> To enable ring formation the aldehyde can react with alcohol.

=> Furanose form when the hydroxl group on carbon no.4(C4) react with carbonyl group (C = O).

=> While the pyrunose form when the hydroxl group on carbon no.5(C5) react with carbonyl group.

=> In ring structure of the glucose there are 5 chiral carbon (C1 C2 C3 C4 C5) and only one of achyral carbon (C6).