[1,5] and [1,2] Acetyl shifts in Diels–Alder adducts of 2-acetyl-6-methyl-1,4-benzoquinone
作者:Faujan B. H. Ahmad、J. Malcolm Bruce、Jabbar Khalafy、Khojasteh Sabetian
DOI:10.1039/c39810000169
日期:——
Treatment of the Diels–Alder adduct 4a-acetyl-4a,5,8,8a-tetrahydro-3-methyl-1, 4-naphthoquinone with pyridine–methanol or acetic anhydride leads to a [1,5] acetyl shift to the 3-position which can be followed by a [1,2] acetyl shift to the 2-position (adduct numbering).
用吡啶-甲醇或乙酸酐处理Diels-Alder加合物4a-乙酰基-4a,5,8,8a-四氢-3-甲基-1,4-萘醌导致[1,5]乙酰基转移至3 -位置,然后可以将[1,2]乙酰基移至2位置(加合物编号)。