Ishwar S. answered • 05/17/19
University Professor - General and Organic Chemistry
Hello Aditya
Wyzant does not provide a ChemDraw feature in this forum, therefore, it is not possible to draw these 2 structures. I can breakdown the name into fragments, which you can then use to draw their structures. I will also write a condensed structure if it helps you.
1) 2,6dimethyl, 3ethyl 5(1-methylethyl) octane
a) octane = 8-carbon alkane
b) 2,6-dimethyl = place one methyl group (CH3) on carbon #2 and a second methyl group on carbon #6
c) 3-ethyl = place an ethyl group (CH2CH3) on carbon #3
d) 5-(1-methylethyl) = 1-methylethyl is the IUPAC nomenclature for an isopropyl group. Place an isopropyl group (CH(CH3)2) on carbon #5.
The condensed structure for this compound is:
CH3-CH(CH3)-CH(CH2CH3)-CH2-CH(CH(CH3)2)-CH(CH3)-CH2CH3
2) 4,5 dimethyl,4 -ethyl decane
a) decane = 10-carbon alkane
b) 4,5-dimethyl = place one methyl group (CH3) on carbon #4 and a second methyl group on carbon #5
c) 4-ethyl = place an ethyl group (CH2CH3) on carbon #4
The condensed structure for this compound is:
CH3CH2CH2-(CH3)-C-(CH2CH3)-CH(CH3)-CH2CH2CH2CH2CH3
