15875-61-3Relevant academic research and scientific papers
Styryl and functionalized aryl derivatives of lawsone through metal-free cross-coupling of its BF3-activated phenyliodonium ylide with cinnamaldehydes and arylaldehydes
Malamidou-Xenikaki, Elizabeth,Tsanakopoulou, Maria,Chatzistefanou, Maria,Hadjipavlou-Litina, Dimitra
, p. 5650 - 5661 (2015/08/03)
Phenyliodonium ylide of lawsone activated with BF3?Et2O reacts with cinnamaldehydes to afford 2-hydroxy-3-styryl-1,4-naphthoquinones in good to excellent yields and relatively high level of stereospecificity through deformylation of the aldehydes. The product yield is diminished with a methoxy substituted cinnamaldehyde and becomes zero with a dimethoxy substituted substrate giving rise to another product, 2-hydroxy-3-aryl-1,4-naphthoquinone. The reaction of the same ylide with salicylic aldehydes forms 2-hydroxy-3-(2-hydroxyaryl)-1,4-naphthoquinones and/or benzo[d]naphtha[2,1-b]furano-5,6-diones, depending on the reaction conditions applied. Plausible reaction mechanisms explaining the formation of these products are proposed. The products showed potent antioxidant activity and inhibited lipoxygenase.
Aqueous extract of Balanites roxburghii fruit: A green dispersant for C-C bond formation
Barge, Madhuri,Salunkhe, Rajashri
, p. 31177 - 31183 (2014/08/05)
An aqueous biosurfactant solution, a biobased green acidic catalyst for Knoevenagel condensation of 1,3-indanedione with aryl aldehydes and tandem Knoevenagel-Michael reaction of 3-methyl-1-phenylpyrazole with aryl aldehydes, has been reported for the fir
Clean synthesis of 2-arylideneindan-1,3-diones in water
Yang, Peng Hui,Zhang, Qun Zheng,Sun, Wei
experimental part, p. 1063 - 1068 (2012/08/28)
A high-yield synthesis of 2-arylideneindan-1,3-diones in water was achieved by the Knoevenagel condensation of indan-1,3-dione with aromatic aldehydes at ambient temperature avoiding the addition of any catalyst. The procedure is simple, efficient, as wel
ELECTROCHEMISTRY OF AUTOCOMPLEX COMPOUNDS. III. ELECTROCHEMICAL AND SPECTRAL PROPERTIES OF 2-METHYLENE-1,3-INDANDIONE DERIVATIVES
Butin, K. P.,Il'ina, I. G.,Moiseeva, A. A.,Reutov. O. A.
, p. 1465 - 1470 (2007/10/02)
By reactions of indan-1,3-dione with a number of aromatic, heterocyclic, and ferrocenyl-containing aldehydes a series of autocomplexes, derivatives of 2-methyleneindan-1,3-dione, was synthesized.By electrochemical and spectral methods the mechanisms of in
Reaction of selenonium monoketoylides with 2-arylideneindanediones
Magdesieva, N. N.,Sergeeva, T. A.
, p. 1622 - 1624 (2007/10/02)
The reaction of selenonium monoketoylide with 2-arylidene-1,3-indanediones was investigated.Dihydrofurans with various structures or 2-(α-phenacylarylidene)-1,3-indanediones are formed, depending on the nature of the arylidene group.
