Give the products of periodic acid oxidation of each of the following. How many moles of reagent will be consumed per mole of substrate in each case? (a) D-Arabinose (b) D-Ribose (c) Methyl ẞ-D-glucopyranoside (d) CH₂OH HO H O OCH 3 H OH H H H OH

Give the products of periodic acid oxidation of each of the following. How many moles of reagent will be consumed per mole of substrate in each case? (a) D-Arabinose (b) D-Ribose (c) Methyl ẞ-D-glucopyranoside (d) CH₂OH HO H O OCH 3 H OH H H H OH

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

This Fischer esterification reaction produces what product? OH (A) (B) (C) (D) + OH 앳 H+
Illustrate the treatment of methyl α-D-glucopyranoside with aqueous acid forms a mixture of α- and β-D-glucose and methanol ?
Indicate the product obtained by reacting alpha-D-Gulopyranose with NaBH4 in CH3OH.
rivatives: Nucleophilic Acyl Substitution Reactions - EOC O C-O [References] One step in the gluconeogenesis pathway for the biosynthesis of glucose is the partial reduction of 3-phosphoglycerate to give glyceraldehyde 3-phosphate. The process occurs by phosphorylation with ATP to give 1,3-bisphosphoglycerate, reaction with a thiol group on the enzyme to give an enzyme-bound thioester, and reduction with NADH. H-C-OH ATP ADP CH₂OPO32- 3-phosphoglycerate 0= OPO32- C H-C-OH CH₂OPO32 1,3-bisphosphoglycerate Enz-SH PO43- O= C S-Enz H-C-OH CH₂OPO3² (Enzyme-bound thioester) NADH/H+ O=C NAD*, Enz-SH H H-C-OH CH₂OPO3²- glyceraldehyde 3-phosphate Propose a structure for the first intermediate in the reaction of the enzyme-bound thioester with NADH to form glyceraldehyde 3-phosphate. To simplify the drawing process, substitute the structure below for the enzyme-bound thioester. S-CH3 substitute for the CH2CH3 enzyme-bound thioester You do not have to consider stereochemistry. • You do not have…
5. Which two D-pentose sugars give optically active alditols when reduced with NABH4 CHO н— он CH2OH D-glyceraldehyde. Сно CHO H HOH H HOH CH2OH „D-erythrose HO H H HOH ČH2OH D-threose CHO CHO CHO CHO -OH HO-H H OH Но -O- H +OH но -H но- H- HFOH CH2OH H- -OH H +OH H FOH CH2OH CH2OH ČH2OH D-ribose D-arabinose D-хylose D-lyхose CHO CHO CHO CHO Сно CHO CHO CHO HO-H HO-H HO-H H HOH но—н но—н H FOH H HOH H +OH HO-H H FOH H- -O- HO-H но- H OH H- -O- но но—н H FOH HO-H H +OH CH2OH H HOH H -OH H HOH H FOH но FH HHOH ČH2OH HHOH ČH2OH H- -OH H -OH H- -OH -OH ČH2OH ČH2OH CH2OH CH2OH ČH2OH D-allose D-altose D-glucose D-mannose D-gulose D-idose D-galactose D-talose
Explain the meaning of the following: (a) Esterification (b) Saponification (c) Enantiomers
CWhen the following triglyceride is hydrolyzed using a 2M solution of KOH, which of the following occurs? H₂C-(CH₂) H₂C- H₂C-(CH₂) O-CH₂ H H (CH₂)s Submit H ông CH (CH₂) H ₂0 (CH₂)7 - CHI Carboxylate ions and glycerol with fully deprotonated alcohol groups are formed. Carboxylic acids and glycerol are formed. Carboxylate lons and glycerol are formed. Carboxylic acids and glycerol with fully deprotonated alcohol groups are formed.
Which of the following is a reducing sugar? HO но OH но но HO" "OH HO" "OH Он но OH он HO A D A В C
Selective and specific inhibitors of acetyl-CoA carboxylase have been proposed to be potential anti-obesity drugs. (i) What is the effect of an inhibitor of acetyl-CoA carboxylase on fatty acid synthesis and fatty acid oxidation? Figure 5 shows the structures of the inhibitors of acetyl-CoA carboxylase: CABI-COA and CABI. What structural features of CABI make it a potential inhibitor of acetyl-CoA carboxylase?
None
NAIME H 1) Compound X consists of an aldopentose. If X is oxidized with nitric acid, the product is then optically active. If X undergoes one Ruff degradation and the product of that degradation is reduced to the alditol using H₂/Ni the resulting product is optically inactive. If compound X undergoes two Ruff degradations, D-glyceraldehyde (below) is obtained. Draw the usual Fischer projection of X (aldehyde at the top). (Hint: work backward from D- glyceraldehyde.) C10 Organic Chemistry 2: Homework assignment H-C-OH Carbohydrates CH₂OH D-Glyceraldehyde
What is the product of the starting material D-glyceraldehyde which will (1) produce aldaric acid upon reacting with HNO3 + H2O, NaOCH2, NH2OH, and (CH3CO)2O + NaOCOCH3 (2) produce tartaric acid upon reacting with HNO3 + H2O, NaOCH3, NH2OH, and (CH3CO)2O + NaOCOCH3