ADNAN MUHAMMED

Grade 12,

how to draw chair form of D glucose and D mannose? how to tell which groups will lie on axial?

how to draw chair form of D glucose and D mannose? how to tell which groups will lie on axial?

Grade:12th pass

1 Answers

Jayant Kishore
144 Points
8 years ago
Firstly make the open chain (fisher projection) of D mannose  . Then draw its intramolecular hemiacetal form  form with -OH gp of C5 . Obviously , it can be made from two sides ie alpha and beta form . Then draw a pyranose structures by keeping in mind that right side gp points down. Finally, make the chair form  , in chair form alternate axial bonds points down  .

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