Draw the two possible chair conformations of the (+)- B- Galactose molecule shown below, using the axial and equatorial bonds provided. Show all substituents and hydrogens. 4. CH-ОН HO ОН ОН CH2OH CHON OH HO OH HO OH HO H OH OH Conformation # 1 Conformation # 2 5. With respect to the previous problem # 4, and your two chair conformations of (+)- B- Galactose.. A single (-OH -- H) 1,3-diaxial steric strain interaction is 2.1 kJ/mole, and a single (-CH2OH -- H) 1,3-diaxial steric strain interaction is 4.0 kJ/mole, and finally a single (-CH2OH steric strain interaction is 4.6 kJ/mole. OH) 1,3-diaxial Determine and Show Calculations for the total 1,3-diaxial steric strain contained in your a) conformations # 1 and # 2. b) Indicate which of your chair conformations is the most stable. Conformation # 1 Conformation # 2 3 Hr

Question

#5

Draw the two possible chair conformations of the (+)- B- Galactose molecule shown below, using the
axial and equatorial bonds provided. Show all substituents and hydrogens.
4.
CH-ОН
HO
ОН
ОН
CH2OH
CHON
OH
HO
OH
HO
OH
HO
H
OH
OH
Conformation # 1
Conformation # 2
5.
With respect to the previous problem # 4, and your two chair conformations of (+)- B- Galactose..
A single (-OH -- H) 1,3-diaxial steric strain interaction is 2.1 kJ/mole, and a single (-CH2OH -- H)
1,3-diaxial steric strain interaction is 4.0 kJ/mole, and finally a single (-CH2OH
steric strain interaction is 4.6 kJ/mole.
OH) 1,3-diaxial
Determine and Show Calculations for the total 1,3-diaxial steric strain contained in your
a)
conformations # 1 and # 2.
b)
Indicate which of your chair conformations is the most stable.
Conformation # 1
Conformation # 2
3
Hr

Image Transcription

Draw the two possible chair conformations of the (+)- B- Galactose molecule shown below, using the axial and equatorial bonds provided. Show all substituents and hydrogens. 4. CH-ОН HO ОН ОН CH2OH CHON OH HO OH HO OH HO H OH OH Conformation # 1 Conformation # 2 5. With respect to the previous problem # 4, and your two chair conformations of (+)- B- Galactose.. A single (-OH -- H) 1,3-diaxial steric strain interaction is 2.1 kJ/mole, and a single (-CH2OH -- H) 1,3-diaxial steric strain interaction is 4.0 kJ/mole, and finally a single (-CH2OH steric strain interaction is 4.6 kJ/mole. OH) 1,3-diaxial Determine and Show Calculations for the total 1,3-diaxial steric strain contained in your a) conformations # 1 and # 2. b) Indicate which of your chair conformations is the most stable. Conformation # 1 Conformation # 2 3 Hr

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