Is galactose a D-sugar or an L-sugar?
Is mannose a D-sugar or an L-sugar?
Highlight each anomeric carbon
Which of the two is the alpha anomer and which is the beta anomer?
Homework Answers
Question 5 1.5 pts What sthe composition as % beta anomer of the equilibrium depicted in...
Question 5 1.5 pts What sthe composition as % beta anomer of the equilibrium depicted in Figure #1 given that its specific rotation is +525°? Enter just the numerical value expressed as a whole number Figure #1 Sugar D alpha anomer Sugar D Sugar D beta anomer specific rotation is +300° Open-chain form specific rotation is +600°
Question 11 [1.6 pts] What is the composition (as % alpha anomer) of the equilibrium depicted...
Question 11 [1.6 pts] What is the composition (as % alpha anomer) of the equilibrium depicted in Figure #1 given that its specific rotation is +600°? Figure #1 Sugar S alpha anomer Sugar S Sugar S beta anomer specific rotation is +3000 Open-chain form specific rotation is +900°
Q: 8-11 Question 8 [1.6 pts] Which one of the following statements about Reaction #4 is correct? Reaction #4 1. NaSCH2CH3 2. H3o* O The minor organic product(s) arise from nucleophilic attack at...
Q:
8-11
Question 8 [1.6 pts] Which one of the following statements about Reaction #4 is correct? Reaction #4 1. NaSCH2CH3 2. H3o* O The minor organic product(s) arise from nucleophilic attack at carbon L O The minor organic product(s) arise from nucleophilic attack at carbon M O None of the above Question 9 [1.6 pts] Which one of the following statements about Reaction #5 is correct? Reaction #5 H2SO4, heat molecular sieves D Product P is the minor organic...
Draw the Haworth projections (cyclic forms) of L form along with alpha and beta of each...
Draw the Haworth projections (cyclic forms) of L form along with alpha and beta of each of the following: Glucose (glucopyranose), Mannose (mannopyranose), Galactose (galactopyranose), Fructose, Fructofuranose, Fructopyranose
What is the composition (as % beta anomer) of the equilibrium depicted in Figure #10 given...
What is the composition (as % beta anomer) of the equilibrium depicted in Figure #10 given that its specific rotation is +880°? Click here if Figure #10 does not display correctly. Figure #10 Sugar E Sugar E Sugar E alpha anomer beta anomer specific rotation is Open-chain form specific rotation is +400° +1000° <<< 1% 9 20 0 O 80 o 91
Consider the following molecule: Circle the anomeric carbon in the following structure and indicate whether it...
Consider the following molecule: Circle the anomeric carbon in the following structure and indicate whether it represents the beta or the alpha anomer. Is this sugar a pyranose or a furanose?
Identify the monosaccharides: Choices are: alpha or beta - d - galactose alpha or beta -...
Identify the monosaccharides:
Choices are:
alpha or beta - d - galactose
alpha or beta - d - glucose
alpha or beta - d - xylose
alpha or beta d - arabinose
Identify the monosaccharides. CH2OH o ОН "о он ОН ОН ОН B-D-glucose B-D-glucose C. ОН CH2OH —о. WOH ОН ОН OH ОН none of the above a-D-galactose
Name the following aldoses. (Include in the names the stereochemical designation D or L and, where...
Name the following aldoses. (Include in the names the stereochemical designation D or L and, where appropriate, the configuration of the anomeric carbon, alpha or beta. This question is case-sensitive, so capitalize only the D or L.) ball & stick labels ball & stick labels The following model is that of an aldopentose: ball & stick - + labels Draw the alpha anomer of the sugar in its furanose form. • Use the wedge/hash bond tools to indicate stereochemistry where...
2. Convert each sugar below to its Haworth form. Draw the alpha anomer for a, the...
2. Convert each sugar below to its Haworth form. Draw the alpha anomer for a, the beta for b. CH OH c=0 но-с-н HO-c-H H-C-OH a. CH OH u-u-u-u-u- III н-с-он Сн,он
is the following sugar an aldose or ketose? why? what carbon is its anomeric carbon? is...
is the following sugar an aldose or ketose? why? what carbon
is its anomeric carbon? is this sugar d or l? which structure (a-d)
describes its beta- anomer?
Н CH OH CH2OH CH OH -оон CH2OH ОН о ОН ₂ ООН ОН ОН ОН HO-31 ОН ОН ОН ОН ОН Нота-Н -Н НА-ОН Н -ОН 6CHOH ОН ОН ОН ОН A в D
Question 5 1.5 pts What sthe composition as % beta anomer of the equilibrium depicted in Figure #1 given that its specific rotation is +525°? Enter just the numerical value expressed as a whole number Figure #1 Sugar D alpha anomer Sugar D Sugar D beta anomer specific rotation is +300° Open-chain form specific rotation is +600°
Question 11 [1.6 pts] What is the composition (as % alpha anomer) of the equilibrium depicted in Figure #1 given that its specific rotation is +600°? Figure #1 Sugar S alpha anomer Sugar S Sugar S beta anomer specific rotation is +3000 Open-chain form specific rotation is +900°
Q:
8-11
Question 8 [1.6 pts] Which one of the following statements about Reaction #4 is correct? Reaction #4 1. NaSCH2CH3 2. H3o* O The minor organic product(s) arise from nucleophilic attack at carbon L O The minor organic product(s) arise from nucleophilic attack at carbon M O None of the above Question 9 [1.6 pts] Which one of the following statements about Reaction #5 is correct? Reaction #5 H2SO4, heat molecular sieves D Product P is the minor organic...
What is the composition (as % beta anomer) of the equilibrium depicted in Figure #10 given that its specific rotation is +880°? Click here if Figure #10 does not display correctly. Figure #10 Sugar E Sugar E Sugar E alpha anomer beta anomer specific rotation is Open-chain form specific rotation is +400° +1000° <<< 1% 9 20 0 O 80 o 91
Consider the following molecule: Circle the anomeric carbon in the following structure and indicate whether it represents the beta or the alpha anomer. Is this sugar a pyranose or a furanose?
Identify the monosaccharides:
Choices are:
alpha or beta - d - galactose
alpha or beta - d - glucose
alpha or beta - d - xylose
alpha or beta d - arabinose
Identify the monosaccharides. CH2OH o ОН "о он ОН ОН ОН B-D-glucose B-D-glucose C. ОН CH2OH —о. WOH ОН ОН OH ОН none of the above a-D-galactose
Name the following aldoses. (Include in the names the stereochemical designation D or L and, where appropriate, the configuration of the anomeric carbon, alpha or beta. This question is case-sensitive, so capitalize only the D or L.) ball & stick labels ball & stick labels The following model is that of an aldopentose: ball & stick - + labels Draw the alpha anomer of the sugar in its furanose form. • Use the wedge/hash bond tools to indicate stereochemistry where...
2. Convert each sugar below to its Haworth form. Draw the alpha anomer for a, the beta for b. CH OH c=0 но-с-н HO-c-H H-C-OH a. CH OH u-u-u-u-u- III н-с-он Сн,он
is the following sugar an aldose or ketose? why? what carbon
is its anomeric carbon? is this sugar d or l? which structure (a-d)
describes its beta- anomer?
Н CH OH CH2OH CH OH -оон CH2OH ОН о ОН ₂ ООН ОН ОН ОН HO-31 ОН ОН ОН ОН ОН Нота-Н -Н НА-ОН Н -ОН 6CHOH ОН ОН ОН ОН A в D
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