Question

3. Draw by hand and name the following monosaccharides

a. anomer of a-D-altrose

b. enantiomer of D-altrose

c. The pyranose and furanose forms of D-altrose

d. The epimer of D-altrose

e. A diasteroisomer of D-altrose

f. What is the relationship between the following:

- i. D-psicose and D-fructose

- ii. D-fructose and D-sorbose

- iii. glucose and sucrose

- iv. a-D-glucopyranose and a-D-glucofuranoseType

Answer 1

Page-1 Ans: - .) Anomer of a D-alfrose ser - snomers are monogelic / glycosides. which are epimer, differisch in the configurati- on at c, if aldose & at cerif ketope and Configuration af o remainiy chiral centre in Same. CHO Ho1 HOM cyclic form of D- Altrose is. CH₂OH their anomer in K ony Hoy You - OH CH-on! CH-04 60 a on D-Altrose. 2-B- Altroppranose. et OY H (6.) B-D- Altopyranose irror image isomer Enantiomer of D-Altrose Enantiomer is non-superimposible сно ясно cho 1 Gro H Hor Lon Hoa 40 OH Скои -on Hoa chon - OH HAH D H Chon -ollycecaldelych L-colliceraldehyde enantiomer Ho OH Ho- CH oH D-Alloose -Afrose enanHomer.

Page - 2 The Pyranose and furanose form of D- Aldose. orse form of D-Allose and terenose form of Dalhou f HOH 4 you OH H CHOH D-Allose d-D- Pgranose. # # -) - Absofeeranose Epimer of - Altose- Cpimer - aljasteriomeric compound containing more than two cliral carbon in which configuration at one of the stereo centre are different and Configuration of remaining stereo centres are some are called epioner ICHO the Roh ни configuration at cê tulot Carbon of D- Aftrose and HAROH D-Allose are different CH-OH theilfore there are -Allose Carepiner ICHO به شرح اسنے ب م م HK OH that enon

e Diasterossoner of D-Allose Page -3 Diasteroisomers are non-superimposible Not mirror image isomer- CHO CHO 애 Ha H- OH H -OH HOH HooH H OH H oH ан,ой D-Albose OH екои Diasteroi Dr Allose. (1) D-Psieuse is - epimer of D-fructose. ICH₂OH CHOH 240 H3OH HOH Hf on CH OH H oH HAROH CH-04 - Psicose D-freetose Ca repinner (ii). D-fructose and D-Sorbose is diasteroisomer. CHzon CHOH to 애 Ho H HOH HLOH H LOH dron 6-04 - Soobose D- Freectose

(ii) Cellulose and suerose: Page 4 elecose is monosaccharide whereas suerose is a disaccharide of one gluose and one forecfose molecule си, ои CHON 1 , H 2 Coel - 1 0 1 cºn H D -freefoss и идеи, ои 01 on H Y'on OM OH H OH 7 OH -B- Forectosidic d-DrCelluose. d-collucosidic linkge- endase & sucrose D-glucopyranose and D-glugfeeranose. Cir.) ica + 2 OH 여 HY OH 애 = 바와 애 HO3 H H-u on 42 OH H OH - bluepron OCH-on D-Glucose. •еци 2-D-Gelerose Has oH HLOH in — н. На H/OH they on H4 H Hos H # OH D-glucofuranoge Ho Joy Had on chon scң ои Dr biluose.