77816-41-2Relevant academic research and scientific papers
Photochemical Alkylamination of 1-Acylaminoanthraquinones
Yoshida, Katsuhira,Okugawa, Tetsuo,Nagamtsu, Eiichi,Yamashita, Yoshio,Matsuoka, Masaru
, p. 529 - 533 (2007/10/02)
The photochemical reaction of 1-acylaminoanthraquinones (1) with primary aliphatic amines in benzene, in air, gave 1-acylamino-4-alkylaminoanthraquinones (2) in 56-78percent yields.The reaction was retarded by the addition of triplet quenchers.The quantum yield of the reaction increased on raising the amine concentration.A mechanism via addition of alkylamine to the triplet excited state of (1), followed by oxidation to give the products (2), is proposed.The regioselective 4-amination of (1) has been rationalized by means of the frontier orbital method.
PHOTOCHEMICAL DIRECT ALKYLAMINATION OF 1-BENZAMIDOANTHRAQUINONE
Yoshida, Katsuhira,Okugawa, Tetsuo,Yamashita, Yoshio
, p. 335 - 336 (2007/10/02)
The photochemical reaction of 1-benzamidoanthraquinone with primary aliphatic amines in aerated benzene leads to the formation of 1-benzamido-4-(alkylamino)anthraquinones in 58-64percent yields.
