A SUCCESSFUL PREPARATION OF 2-ARYL-2,3-DIHYDRO-2,3-IMINO-1,4-NAPHTHOQUINONES
作者:Kazuhiro Maruyama、Takuji Ogawa
DOI:10.1246/cl.1981.1027
日期:1981.7.5
A new class of compounds, 2-aryl-2,3-dihydro-2,3-imino-1,4-naphthoquinones 3, was synthesized for the first time by heating 2-aryl-1,4-naphthoquinones with aryl azides. The yields were 30–50% when p-methoxyphenyl azide was used.
Palladium-catalyzed arylation of 1,4-naphthoquinones with aryl iodides and its synthetic application to the benzo[b]phenanthridine skeleton
作者:Yusuke Akagi、Toshiya Komatsu
DOI:10.1016/j.tetlet.2020.152446
日期:2020.10
We report a Pd-catalyzed arylation of 1,4-naphthoquinones with aryliodides. This reaction shows excellent functional group tolerance and high regioselectivity when using nonsymmetric 1,4-naphthoquinone. Furthermore, the resulting 2-aryl-1,4-naphthoquinone could be successfully converted into benzo[b]phenanthridine-7,12-dione through treatment with aqueous ammonia, followed by oxidative cyclization
我们报告钯与芳基碘化物催化的芳基化的芳基化。当使用非对称的1,4-萘醌时,该反应显示出优异的官能团耐受性和高的区域选择性。此外,通过用氨水处理,然后使用MnO 2进行氧化环化,可以将所得的2-芳基-1,4-萘醌成功地转化为苯并[ b ]菲啶-7,12-二酮。
DE508395
申请人:——
公开号:——
公开(公告)日:——
Marini-Bettolo; Rossi, Gazzetta Chimica Italiana, 1942, vol. 72, p. 208,214
作者:Marini-Bettolo、Rossi
DOI:——
日期:——
MARUYAMA KAZUHIRO; OGAWA TAKUJI, CHEM. LETT., 1981, NO 7, 1027-1028