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Ascorbic acid (Reductones) properties & synthesis

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Reductants reduc tones are compounds which contain the in dye all serene alpha dye all alpha carbonyl groups actually this will be alpha this will be alpha reductants are compounds which contained in alpha dye all alpha carbon is comes looped this is a structure of reducto ascorbic acid is not reduced by lithium aluminium hydride thus ascorbic acid does not contain

A normal carbonyl group if it was the normal carbonyl group in case of ascorbic acid then it should be reduced by lithium aluminum hydride actually all vedic terms are not reduced by lithium aluminum hydride and has kovach acid is also a reductant this is a structure of adaptiq acid which is also a reduction the reductions means you have a carbonyl group and in the

Alpha carbon the alpha and beta carbons are actually double bonded and they contains two hydroxyl groups see this this is the ketone group the alpha carbon contains a hydroxyl group and a double bond with the beta carbon which also contains the hydroxyl group in case of reductive acid this is the carbonyl group this one is the alpha carbon which is double bond doubly

Bonded with the beta carbon and both of this alpha and beta carbon contains a hydroxyl group this is all about reducto now come in detail of ascorbic acid which is known as vitamin c this is the reduced form of the ascorbic acid and this is the oxidized form of ascorbic acid vitamin c was called hexitonic acid the structure of vitamin c was elucidated by howard

Haste and their co-workers the molecular formula was shown to be c 6 h 806 and since the compound formed a monosodium and mono potassium salt it was thought that there was a carboxyl group present vitamin c behaves as an unsaturated compound and as a strong reducing agent it also forms phenol hydrazone and gives a violet color with ferric chloride all these suggests

That a keto enol system is present in vitamin c or the ascorbic acid the presence of an aldehyde group was excluded by the fact that vitamin c does not give the seif reaction when boiled with hydrochloric acid ascorbic acid gives a quantitative field of four futile behind this is the four fever aldehyde if you take ascorbic acid and then boil it with hydrochloric

Acid it will get this far fewer aldehyde now this is the synthesis of ascorbic acid the mechanism of the synthesis at first take the l silos then make that to position as ketone you know how to do it you can make it by ozone then add kcm cacl2 so we will get this structure actually this case ian will attack this aldehyde group and then after hydrolysis you’ll

Get this type of acid which on tautomerism will give this and after the after eliminating water that means when this h group this o h group is actually attacking this carboxylic group and forming gamma lactone this is a gam electron because this one is the carbonyl group so this one is the alpha carbon this one is the beta carbon this one is the gamma carbon so

This one is a gamma lactone so at last you will get the structure of ascorbic acid there is another process which is in use of the synthesis of ascorbic acid which starts from the d glucose then hydrogenases with the presence of copper and chromium you will get sorbitol after that you can use a pseudo vector solve all i can see this what is it as it over tears sub

Oxidants then use the acid i vectors have oxidants we get this structure which actually after enclosure will give sore balls oh after the ring closure it will give the sore balls so actually what is happening here this o is group is attacking this ketone group so you will get a five membered ring see you can get five-member ring and then add acetone and acid then

You will get the die acetone psorbos after that reacted with kmno4 the basic amino for then something will happen and what is it actually this ch2oh will be oxidized and then add some acid so you will get two keto kulhanek acid – crito colonic acid then if you give chloroform in hcl solution so at last you will get l-ascorbic acid this one just try to understand do it yourselves you

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Ascorbic acid (Reductones) properties & synthesis By Achiral Avi