The thermal electrocyclic closure of (2E,4Z,6E)-2,4,6-octatriene gives – McqOptions

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1.	The thermal electrocyclic closure of (2E,4Z,6E)-2,4,6-octatriene gives which of the following?
A.	cis-5,6-dimethyl-1,3-cyclohexadiene
B.	trans-5,6-dimethyl-1,3-cyclohexadiene
C.	cis-3,6-dimethyl-1,4-cyclohexadiene
D.	cis-3,6-dimethyl-1,4-cyclohexadiene
Answer» B. trans-5,6-dimethyl-1,3-cyclohexadiene

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