A certain aldotetrose, A , produces an optically active aldaric acid on oxidation with sodium nitrite and nitric acid. When A is subjected to modified Kiliani-Fischer conditions, two compounds are produced, B and C . On sodium borohydride reduction, B yields an optically inactive alditol, while C gives an optically active alditol. The configurational carbon in A,B , and C matches that of R -glyceraldehyde. What are the structures of A, B , and C ?

Question

A certain aldotetrose,  A , produces an optically active aldaric acid on oxidation with sodium nitrite and nitric acid. When  A  is subjected to modified Kiliani-Fischer conditions, two compounds are produced,  B  and  C . On sodium borohydride reduction,  B  yields an optically inactive alditol, while  C  gives an optically active alditol. The configurational carbon in  A,B , and  C  matches that of  R -glyceraldehyde. What are the structures of  A, B , and C ?

Quizplus · Accepted Answer

The Answer of A certain aldotetrose,  A , produces an optically active aldaric acid on oxidation with sodium nitrite and nitric acid. When  A  is subjected to modified Kiliani-Fischer conditions, two compounds are produced,  B  and  C . On sodium borohydride reduction,  B  yields an optically inactive alditol, while  C  gives an optically active alditol. The configurational carbon in  A,B , and  C  matches that of  R -glyceraldehyde. What are the structures of  A, B , and C ?

A Certain Aldotetrose, a , Produces an Optically Active