Chemistry
154. The correct IUPAC name of the acid
C=C. U is
ОН
(A) 2-3-ethyl-4-methyl hex-3- en-1-oic acid
(B) z-3 ethyl -4-methyl hexanoic acid
(C) 2, 3, 4, diethylpent-3-en-1-oic acid
(D) E-3-ethyl-4 methyl hex-4-en-1-oic acid
(E) E-3-ethyl -4-methyl hex-3-en-1-oic acid.
(Kerala C.E.T. Engg. 2009)
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Answer: Ans: E
Explanation:
E-3-ethyl-4-merhylhex-3-en-1-oicacid
surJk:
why
Ans is correct ?
yup
Cis /trans can't use different groups are attached to C=C SO E/Z configuration we have to use E/Z decided by giving priority to based on increasing order of atomic number if high priority same side Z Opp side E configuration
C2H5 (1) CH3(2) on one carbon order of priorities on 2 nd carbon -COOH(1) ,C2H5(2) 1st priority gp means c2h5 and cooh Opp so E configuration
Thank you
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