Cu-catalyzed oxidative Povarov reactions between N-alkyl N-methylanilines and saturated oxa- and thiacycles
作者:Rahul Kisan Kawade、Deepak B. Huple、Rong-Jing Lin、Rai-Shung Liu
DOI:10.1039/c5cc01287b
日期:——
Cu-catalyzed oxidative Povarov reactions between N,N-dialkylanilines and saturated oxa- or thiacycles with tert-butyl hydroperoxide (TBHP) are described.
Iodine-catalyzed formation of aza-dienes: a novel synthesis of angularly fused hexahydropyrano- and furo[3,2-c]quinoline derivatives
作者:B.V. Subba Reddy、Harish Grewal
DOI:10.1016/j.tetlet.2010.12.003
日期:2011.2
[4+2] cycloaddition with electron-rich enol ethers, such as 3,4-dihydro-2H-pyran and 2,3-dihydrofuran under mild and neutral conditions to afford the corresponding hexahydropyrano- and furo[3,2-c]quinoline derivatives, respectively, in good yields with cis-selectivity.
在催化量的分子碘存在下,由N- [甲基-N-(三甲基甲硅烷基)甲基]苯胺原位生成的氮杂二烯与富电子烯醇醚(如3)进行平滑的[4 + 2]环加成, 4-二氢-2 H-吡喃和2,3-二氢呋喃在温和和中性条件下分别提供相应的六氢吡喃基和呋喃并[3,2- c ]喹啉衍生物,并具有良好的顺式选择性收率。