REFERENCES AND NOTES
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- I-Methoxy-1,3-cyclohexadiene is available from Aldrich Chemical Co., Inc. as a 65:35 mixture of 1-methoxy-1,3-cyclohexadiene and 1-methoxy-1,4-cyclohexadiene. A small amount (9% yield) of an inseparable 1:1 mixture of 6 and 7 was also isolated from the reaction mixture. Compounds 6 and 7 presumably arise from reaction of 2-methoxy-1,3-cyclohexadiene formed by isomerization of 1-methoxy-1,4-cyclohexadiene under the reaction conditions.