4042-39-1Relevant articles and documents
Synthesis and cytotoxicity evaluation of a series of 3-alkenyl-2-hydroxy-1,4-naphthoquinones obtained by an efficient knoevenagel condensation
David, Cibelle C.,Lins, Antonio C.S.,Silva, Tania M.S.,Campos, Júlia F.,Silva, Teresinha G.,Milit?o, Gardenia C.G.,Camara, Celso A.
, p. 8 - 18 (2018/12/13)
A modified and efficient Knoevenagel condensation procedure was developed to synthesize the title compounds using β-alanine and acetic acid as catalysts, showing good to excellent yields. We used lawsone with suitable aliphatic aldehydes including isobuty
Palladium(II)-Catalyzed C-H Bond Activation/C-C Coupling/Intramolecular Tsuji-Trost Reaction Cascade: Facile Access to 2 H -Pyranonaphthoquinones
Bian, Jinlei,Qian, Xue,Wang, Nan,Mu, Tong,Li, Xiang,Sun, Haopeng,Zhang, Lianshan,You, Qidong,Zhang, Xiaojin
supporting information, p. 3410 - 3413 (2015/07/28)
An efficient one-pot synthesis of 2H-pyranonaphthoquinone was achieved via a palladium-catalyzed C-H bond activation/C-C bond formation/intramolecular Tsuji-Trost reaction cascade. The unprecedented procedure exhibits excellent functional group tolerance, giving the target naphthoquinones in moderate to good isolated yields (40-88%) under mild reaction conditions. Scalable production of the product can make this reaction a method of choice for the synthesis of 2H-pyranonaphthoquinones.
Reaction of 2-Hydroxy-1,4-naphthoquinone with Aldehydes. Synthesis of 2-Hydroxy-3-alk-1-enylnaphthoquinones.
Bock, Klaus,Jacobsen, Niels,Terem, Bulent
, p. 659 - 664 (2007/10/02)
In the course of an unsuccessful attempt to prepare 2-(3,7-dimethylocta-1,6-dienyl)-3-hydroxy-1,4-naphthoquinone (1a) by acid catalyzed condensation of 2-hydroxy-1,4-naphthoquinone (2) with citronellal, a tetracyclic quinone (3) was obtained.This quinone