meaning of cyanonydrin...... (ii) Acetal (iii) semicurbazone......... hey please tell me answer it's Urgent......
Answers
Answer:
cyanonydrin--an organic compound containing a carbon atom linked to both a cyanide group and a hydroxyl group.
Acetal--an organic compound formed by the condensation of two alcohol molecules with an aldehyde molecule.
semicurbazone--In organic chemistry, a semicarbazone is a derivative of imines formed by a condensation reaction between a ketone or aldehyde and semicarbazide.
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(i) Cyanohydrin (ii) Acetal. (iii) Semicarbazone. ... Cyanohydrins are organic compounds having the formula RR“²C(OH)CN, where R and R“² can be alkyl or aryl groups. Aldehydes and ketones react with hydrogen cyanide (HCN) in the presence of excess sodium cyanide (NaCN) as a catalyst to field cyanohydrin.
Answer: (i) Cyanohydrin:
Cyanohydrin is organic compounds with the formula RR’C(OH)CN, where alkyl or aryl groups maybe R and R ‘.
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In the presence of excess sodium cyanide (NaCN) as a precursor to using cyanohydrin, aldehydes and ketones react with hydrogen cyanide (HCN). Such reactions are classified as reactions to cyanohydrins.
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The useful synthetic intermediates are Cyanohydrins.
(ii) Acetal:
The gem−dialkoxy alkanes at the terminal carbon atom consisting of two groups of alkoxy are called Acetal. One bond is connected to an alkyl group, and the other to a hydrogen atom.
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The general structure of an acetal.
Hemiacetals are formed in the presence of dry HCl water when aldehydes are treated with two monohydric alcohol equivalents. In addition, hemiacetals react with another alcohol molecule to yield acetal.
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(iiis(iii) Semicabarbazone:
Semicarbazone comes from aldehydes and ketones, which is formed by the condensation reaction between a ketone or aldehyde and semicarbazide.
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Semicarbarzones serve to identify and characterize aldehydes and ketones.