Oxidative free radical reactions between 2-amino-1,4-benzoquinones and carbonyl compounds
作者:Che-Ping Chuang、An.-I. Tsai
DOI:10.1016/j.tet.2007.09.019
日期:2007.11
The manganese(III) initiated oxidative free radical reactions of 2-amino-1,4-benzoquinone are described. The free radical reaction of 5,6-dimethyl-2-methylamino-1,4-benzoquinone (1) provides a novel method for the synthesis of indole-4,7-dione and indole-2,4,7-trione. High chemoselectivity was observed in different solvents. The regioselectivity of this reaction was also studied with 5-methyl-2-methylamino-1
KALLMAYER, H. -J.;TAPPE, CH., PHARMAZIE, 1986, 41, N 1, 29-33
作者:KALLMAYER, H. -J.、TAPPE, CH.
DOI:——
日期:——
A novel oxidative free radical reaction between 2-amino-1,4-benzoquinones and benzoylacetonitriles
作者:Che-Ping Chuang、An-I. Tsai
DOI:10.1016/j.tet.2007.07.008
日期:2007.9
The manganese(III) initiatedoxidativefreeradicalreactionbetween 2-amino-1,4-benzoquinones and benzoylacetonitriles is described. This freeradicalreaction provides a novel method for the synthesis of spirodione 3 and spirolactone 4. With 5,6-dimethyl-2-methylamino-1,4-benzoquinone, spirodione 3 was obtained exclusively. On the contrary, with 5-methyl-2-methylamino-1,4-benzoquinone, spirolactone