Is this mecanisme correct for a benzylidene acetal formation where methyl alpha-D-glucopyranoside react with benzaldehyde and zinc chloride?
Homework Answers
Yes.
The mecanisme for a benzylidene acetal formation of methyl alpha-D-glucopyranoside reacting with benzaldehyde and zinc chloride is correct.
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Is this mecanisme correct for a benzylidene acetal formation
where methyl alpha-D-glucopyranoside react with benzaldehyde and...
Is the mecanisme for a benzylidene acetal formation of methyl alpha-D-glucopyranoside reacting with benzaldehyde dimethyl acetal...
Is the mecanisme for a benzylidene acetal formation of methyl
alpha-D-glucopyranoside reacting with benzaldehyde dimethyl acetal
and camphorsulfonic acid correct?
осн, нсон осн Ht Осн, CH3 н -Мeон -н" : Он о но- но ОН н н Ph- -о Ph Н,со H+ Н,со- но н о но Он но но Он Ph -МеOн н но но он о о Ph о н Ph -н* он он но но
Is this SN1 or SN2? ZnCl2 н ZnCl2 -н* : Он но но он н Ph...
Is this SN1 or SN2?
ZnCl2 н ZnCl2 -н* : Он но но он н Ph -о Cl Zn-O но он но н н Н Ph Ph- нС. Cl2Zn-O но н но Он но но Он о Ph Ph -Н+ о н но он он но о о о
benzylidene protection of methyl alpha D-glucoside. Compounds in lab: methyl alpha-D-glucoside, benzaldehyde dimethyl acetal, sulfuric acid,...
benzylidene protection of methyl alpha D-glucoside. Compounds in lab: methyl alpha-D-glucoside, benzaldehyde dimethyl acetal, sulfuric acid, 1,4-dioxane. ( Experimental procedure: Suspend the glucoside in 1,4-dioxane. Add the benzaldehyde followed by a catalytic amount (i.e. a small drop) of sulfuric acid to the stirred solution. Heat to ca 85 o C, leave the reaction flask open but make sure that it is not left to run dry. Follow the reaction by TLC until it is complete, after which you can allow...
Hi I have to do an mechanism and tell witch reaction type it is (SN1 or SN2?)...
Hi
I have to do an mechanism and tell witch reaction
type it is (SN1 or SN2?)
I had to prepared Methyl
2,3-di-O-benzoyl-4,6-O-benzyliden-α-D-glucopyranosid from methyl
α-D-glucopyranosid.
I have tried to make the mechanisme, Can you see and it is
correct? It is down below.
Is this correct?
4.1 SIMPLE PROTECTION OF MONOSACCHARIDES PH HOEKOMe HOOH O SOME HOOH Methyl 4,6-0-benzylidene-a-D-glucopyranoside: Methyl a-D-glucopyranoside (3.00 g, 15.5 mmol) is dissolved in dry acetonitrile (150 ml) in an oven-dried 250-ml round-bottomed flask, which immediately...
Ch 16.1 Give the major product(s) or the following reaction ao,a OH N ? OH io...
Ch 16.1
Give the major product(s) or the following reaction ao,a OH N ? OH io OH H There is no reaction under these conditions or the correct product is not listed here Gve the major product(s) of the following reaction COCH OH N H OH 0 OH H There is no reaction under these conditions or the correct product is not listed here. В 1) BAIH (-Bu), (-78°C) (0.5 moles) 2) ное ? оо н ОН ОН OCH, OH...
Draw the major organic product(s) for the following reactions; (*) must include correct stereochemistry; double-dagger (‡)...
Draw the major organic product(s) for the following reactions;
(*) must include correct stereochemistry; double-dagger (‡) must
show
two products.
сь/н,о HOCIJ/15-20 c oS I 158 (70-73 % yield) (gg)" Cly/H2O (но-с (hh) Bry/MyO [но-ві] (i) Cly/ H,0 Br/-78 C in CH,Cl,/6 h (93% yield) (kk) Cl/H,0 Cl/H,0 (носу/о "с oS IV 157 (52-55 % yield) (mm)* mCРВА CH,Cl (nn)" mCРВА CH,Cl (oo) тCРВА CH,Cl (pp)* он - CoH MCPBA CI in Et,O/0-4 "C 10 d (60% yield; 75:25) /.(bb)...
Which of the following mechanisms for the formation of the most stable imine is correct? Which...
Which of the following mechanisms for the formation of the most
stable imine is correct?
Which of the following mechanisms for the formation of the most stable imine is correct? HNER HIN=R А OH йон, -cн, Ph (NH R-NH2 Ph Ph CH3 OH -CH3 Ph N-H- RH Ph CH3 Ph TCH NH R CH3 Ph CH3 R H2N-R H2N-R H2NER H2NER B o H- он, R-NH2 -CH3 Ph CH3 Ph CH3 * он -CH3 Ph NH RM H2N-R X CH₃...
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 b all & stick + labels The following model is that of an aldopentose: ball & stick - + labels Draw the alpha anomer of the sugar in its furanose form. Classify each of the following sugars. (For...
I need some help to answer these following questions. Thanks. 41. Which molecule(s) is/are aromatic? I1...
I need some help to answer these following questions.
Thanks.
41. Which molecule(s) is/are aromatic? I1 IV (A) I only (C) I, III, and IV (B) I and IV (D) I, II, III, and IV OH OH 42. Which Fischer projection represents this structure? HO OH OH H CHO CHO (A) H-OH (B) HOH HOH CH2OH CH2OH CHO HOH CHO но -н CH2OH CH2OH 43. Which is a product of this ozonolysis reaction? 1.03 2. (CH3)2S H O I BHs/THF...
15.4 о ко, н* ? heat -сон ОН НО,С -co,Н There is no reaction under these...
15.4
о ко, н* ? heat -сон ОН НО,С -co,Н There is no reaction under these conditions or the correct product is not listed here. Gve the major product of the following reaction. H2NNH, OH ? heat O HO OH There is no reaction under these conditions or the correct product is not listed here. Give the major product of the following reaction. o H2NNH, OH ? heat OH -COH O Br Но,с со,н There is no reaction under these...
Is the mecanisme for a benzylidene acetal formation of methyl
alpha-D-glucopyranoside reacting with benzaldehyde dimethyl acetal
and camphorsulfonic acid correct?
осн, нсон осн Ht Осн, CH3 н -Мeон -н" : Он о но- но ОН н н Ph- -о Ph Н,со H+ Н,со- но н о но Он но но Он Ph -МеOн н но но он о о Ph о н Ph -н* он он но но
Is this SN1 or SN2?
ZnCl2 н ZnCl2 -н* : Он но но он н Ph -о Cl Zn-O но он но н н Н Ph Ph- нС. Cl2Zn-O но н но Он но но Он о Ph Ph -Н+ о н но он он но о о о
Hi
I have to do an mechanism and tell witch reaction
type it is (SN1 or SN2?)
I had to prepared Methyl
2,3-di-O-benzoyl-4,6-O-benzyliden-α-D-glucopyranosid from methyl
α-D-glucopyranosid.
I have tried to make the mechanisme, Can you see and it is
correct? It is down below.
Is this correct?
4.1 SIMPLE PROTECTION OF MONOSACCHARIDES PH HOEKOMe HOOH O SOME HOOH Methyl 4,6-0-benzylidene-a-D-glucopyranoside: Methyl a-D-glucopyranoside (3.00 g, 15.5 mmol) is dissolved in dry acetonitrile (150 ml) in an oven-dried 250-ml round-bottomed flask, which immediately...
Ch 16.1
Give the major product(s) or the following reaction ao,a OH N ? OH io OH H There is no reaction under these conditions or the correct product is not listed here Gve the major product(s) of the following reaction COCH OH N H OH 0 OH H There is no reaction under these conditions or the correct product is not listed here. В 1) BAIH (-Bu), (-78°C) (0.5 moles) 2) ное ? оо н ОН ОН OCH, OH...
Draw the major organic product(s) for the following reactions;
(*) must include correct stereochemistry; double-dagger (‡) must
show
two products.
сь/н,о HOCIJ/15-20 c oS I 158 (70-73 % yield) (gg)" Cly/H2O (но-с (hh) Bry/MyO [но-ві] (i) Cly/ H,0 Br/-78 C in CH,Cl,/6 h (93% yield) (kk) Cl/H,0 Cl/H,0 (носу/о "с oS IV 157 (52-55 % yield) (mm)* mCРВА CH,Cl (nn)" mCРВА CH,Cl (oo) тCРВА CH,Cl (pp)* он - CoH MCPBA CI in Et,O/0-4 "C 10 d (60% yield; 75:25) /.(bb)...
Which of the following mechanisms for the formation of the most
stable imine is correct?
Which of the following mechanisms for the formation of the most stable imine is correct? HNER HIN=R А OH йон, -cн, Ph (NH R-NH2 Ph Ph CH3 OH -CH3 Ph N-H- RH Ph CH3 Ph TCH NH R CH3 Ph CH3 R H2N-R H2N-R H2NER H2NER B o H- он, R-NH2 -CH3 Ph CH3 Ph CH3 * он -CH3 Ph NH RM H2N-R X CH₃...
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 b all & stick + labels The following model is that of an aldopentose: ball & stick - + labels Draw the alpha anomer of the sugar in its furanose form. Classify each of the following sugars. (For...
I need some help to answer these following questions.
Thanks.
41. Which molecule(s) is/are aromatic? I1 IV (A) I only (C) I, III, and IV (B) I and IV (D) I, II, III, and IV OH OH 42. Which Fischer projection represents this structure? HO OH OH H CHO CHO (A) H-OH (B) HOH HOH CH2OH CH2OH CHO HOH CHO но -н CH2OH CH2OH 43. Which is a product of this ozonolysis reaction? 1.03 2. (CH3)2S H O I BHs/THF...
15.4
о ко, н* ? heat -сон ОН НО,С -co,Н There is no reaction under these conditions or the correct product is not listed here. Gve the major product of the following reaction. H2NNH, OH ? heat O HO OH There is no reaction under these conditions or the correct product is not listed here. Give the major product of the following reaction. o H2NNH, OH ? heat OH -COH O Br Но,с со,н There is no reaction under these...
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