Rose Bengal-photosensitized oxidation of tertiary amines for the synthesis of bis-1,3-dicarbonyl compounds
作者:Ling-Ling Wu、Li Tang、Shui-Gen Zhou、Yi-Jie Peng、Xiao-Dong He、Zhi Guan、Yan-Hong He
DOI:10.1016/j.tet.2017.09.050
日期:2017.11
We report an example of Rose Bengal-photosensitized oxidation of tertiaryamines for the synthesis of bis-1,3-dicarbonyl compounds. This protocol employs Rose Bengal as a visible-light absorbing photocatalyst without the need of a transition metal, and air as a green oxidant. Various functional groups were well tolerated to afford products with yields of up to 80% under mild reaction conditions.
Dye intermediates comprising bisacylacet amides and their preparation
申请人:DU PONT
公开号:US02368302A1
公开(公告)日:1945-01-30
ZANKOWSKA-JASINSKA W.; KOLASA A., ROCZ. CHEM. <ROCH-AC>, 1976, 50, NO 4, 625-645
作者:ZANKOWSKA-JASINSKA W.、 KOLASA A.
DOI:——
日期:——
Iron-Catalyzed Selective Oxidation of <i>N</i>-Methyl Amines: Highly Efficient Synthesis of Methylene-Bridged bis-1,3-Dicarbonyl Compounds
作者:Haijun Li、Zhiheng He、Xingwei Guo、Wenjuan Li、Xuhui Zhao、Zhiping Li
DOI:10.1021/ol901751c
日期:2009.9.17
Methylene-bridged bis-1,3-dicarbonyl derivatives were synthesized efficiently by iron-catalyzed oxidative reactions of 1,3-dicarbonylcompounds and N,N-dimethylaniline. Bipyrazoles and substituted 1,4-dihydropyridine were obtained by the reactions of bis-1,3-dicarbonyl compounds with hydrazines and ammonium acetate, respectively.