934196-48-2Relevant academic research and scientific papers
"on Water" Promoted Ullmann-Type C-N Bond-Forming Reactions: Application to Carbazole Alkaloids by Selective N-Arylation of Aminophenols
Chakraborti, Gargi,Paladhi, Sushovan,Mandal, Tirtha,Dash, Jyotirmayee
, p. 7347 - 7359 (2018/07/29)
The Ullmann-type cross coupling of a variety of aromatic, aliphatic amines with aryl halides is reported using a CuI-based catalytic system in combination with an easily accessible prolinamide ligand in aqueous media. The method is mild and tolerant to air, moisture, and a wide range of functional groups, providing a novel way to access a variety of aminated products. Secondary amines like heteroaromatic amines and nucleobases have also been used, affording the corresponding coupling products in good to excellent yields. Moreover, this method has been employed for chemoselective C-N arylation of aminophenols and further utilized for the synthesis of carbazole natural products, avoiding the protection and deprotection steps.
A method of synthesis of natural product Clausenine (by machine translation)
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Paragraph 0031, (2017/02/09)
The invention discloses a method of synthesizing a natural product Clausenine and belongs to the field of organic synthesis. The method comprises the steps of reacting 6-diazo-3-methyl-2-cyclohexene-1-ketone with anisidine under the catalysis action of co
Copper-catalyzed N=H insertion and oxidative aromatization cascade: Facile synthesis of 2-arylaminophenols
Ding, Dong,Lv, Xiaobing,Li, Jian,Xu, Guangyang,Ma, Bing,Sun, Jiangtao
supporting information, p. 1539 - 1542 (2014/06/09)
A copper-catalyzed cascade reaction of N-H insertion and oxidative aromatization has been developed. 2-Arylaminophenols have been prepared in moderate to high yields from the diazo substrates. Moreover, this newly established methodology allows efficient access to natural 1-oxygenated carbazole alkaloids, such as glycozolicine and murrayafoline A. Copper falls: A copper-catalyzed cascade reaction of N=H insertion and oxidative aromatization yields 2-arylaminophenols. This newly established methodology also allows efficient access to natural 1-oxygenated carbazole alkaloids, such as glycozolicine and murrayafoline A.
exo-2-oxazolidinone dienes in the total synthesis of the natural carbazoles, 6-methoxymurrayanine and clausenine
Bernal, Pablo,Benavides, Adriana,Bautista, Rafael,Tamariz, Joaquin
, p. 1943 - 1948 (2008/02/10)
A new application of exo-2-oxazolidinone dienes in the regioselective synthesis of natural carbazoles, 6-methoxymurrayanine (6) and clausenine (7), is described. The regioselective cycloaddition of novel diene 10 to acrolein by Lewis acid catalysis provid
