28023-86-1Relevant academic research and scientific papers
Synthesis of di- and poly-substituted phenols via [4 + 2] type cyclo-condensation
Shao, Ming-Zhe,Liu, Xiao-Yu,Li, Fang-Qing,Chen, Zili
, (2021)
A new [4 + 2] type cyclocondensation was developed to prepare 3,5- and poly-substituted phenols using aryl ketoesters and ynones as the starting materials; Various substrates, such as aryl-, heteroaryl ketoesters and aryl-, vinyl-, alkyl substituted ynones, were employed. In addition, extending the substrate scope to benzoyl acetone provided 3,4,5-trisubstituted phenols.
DBU-Catalyzed Michael Reaction of Enones with 1,3-Diketones and the Subsequent Iodine-Mediated Transformation of the Adducts to Polysubstituted Phenols
Chen, Mei-Ling,Miao, Chun-Bao,Sun, Xiao-Qiang,Yang, Hai-Tao
, p. 2945 - 2958 (2019/07/22)
An efficient DBU-catalyzed Michael reaction of enones with 1,3-diketones has been developed for the gram-scale preparation of the Michael adducts. It is attractive that most of the adducts can be obtained with high purity through simple filtration. A conv
A NEW METHOD FOR THE SYNTHESIS OF 3,5-DIARYLPHENOLS
Magdesieva, N. N.,Chovnikova, N. G.
, p. 509 - 511 (2007/10/02)
Reaction of the diylide containing a triphenylphosphonium and pyridinium group at position 1,3 with α,β-unsaturated ketones leads to the formation of 1-oxido-2-triphenylphosphonio-3,5-diarylbenzenes.Their subsequent hydrolysis leads to 3,5-diarylphenols.
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACIDIC AGENTS IV. CONDENSATION OF SUBSTITUTED RESORCINOLS WITH BENZENE AND CHLOROBENZENE
Repinskaya, I. B.,Koptyug, V. A.
, p. 1298 - 1303 (2007/10/02)
In the presence of aluminium chloride 5-methyl-, 5-phenyl, and 5- and 4-chlororesorcinols are brought into condensation with benzene through positions 5 or 3, depending on the nature of substituent.
