80921-39-7Relevant academic research and scientific papers
Practical aqueous reactions leading to skeletally diverse carbohydrate-derived ketones
Liu, Hongming,Liu, Xiaoxing,Liu, Lei,Zhang, Xixi,Li, Chunbao
, p. 11831 - 11836 (2015/03/05)
Four types of skeletally diverse compounds have been synthesized from protected aldosyl hemiacetals and methyl ketones using cheap catalysts in water in one pot. Among the four skeletons, two of them are not accessible by current methods. The reactions are operationally simple, high yielding and scalable, which opens a practical channel for utilizing carbohydrates to produce chemical and pharmaceutical intermediates and products.
Conversion of α,β-unsaturated ketones to 1,5-diones via tandem retro-Aldol and Michael addition using Co(acac)2 covalently anchored onto amine functionalized silica
Sodhi, Ravinderpal Kour,Paul, Satya,Gupta, Vivek K.,Kant, Rajni
, p. 1944 - 1948 (2015/03/30)
Abstract A new and efficient method has been developed for the conversion of α,β-unsaturated ketones to 1,5-diketones via tandem retro-Aldol and Michael addition in the presence of Co(acac)2 covalently anchored amine functionalized silica [AS-Co(acac)2]. The single crystal X-ray crystallography confirms the formation of 1,5-diketones. This method has been proved to be an attractive alternative to existing methodologies under conventional homogeneous catalysis with the frequent troublesome manipulation and work-up. The AS-Co(acac)2 was found to be highly active and could be recycled for four consecutive runs with slight decrease in activity.
Naoh-Al2O3 catalyzed synthesis of 1, 3, 5-triarylpentane-1, 5-diones derivatives under solvent-free condition and crystal structure of 3-(2', 4'-dichlorophenyl)-1, 5-diphenylpentane-1, 5-dione
Huang, Xianqiang,Feng, Qiu,Sun, Yanliang,He, Qingpeng,Wang, Yong
experimental part, p. 280 - 286 (2012/07/14)
Abstract: An efficient procedure for rapidly synthesizing the 1,3,5-triarylpentane-1,5-diones compounds using aromatic aldehydes and aromatic ketones as starting materials by tandem aldol reactions/Michael additions under NaOH/Al2O3
Rhodium(II)-catalyzed cyclization of bis(N-tosylhydrazone)s: An efficient approach towards polycyclic aromatic compounds
Xia, Ying,Liu, Zhenxing,Xiao, Qing,Qu, Peiyuan,Ge, Rui,Zhang, Yan,Wang, Jianbo
supporting information; experimental part, p. 5714 - 5717 (2012/07/28)
Ahead of the PAC: Polycyclic aromatic compounds (PACs) can be easily accessed by the combination of Suzuki-Miyaura cross-coupling and a [Rh 2(OAc)4]-catalyzed carbene reaction using easily available bis(N-tosylhydrazone)s as intermediates (see scheme; Ts=4-toluenesulfonyl). Copyright
THIAPYRYLIUM AND PYRYLIUM SALTS WITH FURYL SUBSTITUENTS
Kharchenko, V. G.,Burov, E. V.,Sedavkina, V. A.
, p. 1168 - 1170 (2007/10/02)
The possibility of obtaining pyrylium and thiapyrylium salts that contain acidophobic furyl substituents by the action of protic acids on the corresponding 1,5-diketones in acetic acid or methanol, depending on the position of the furan rings relative to
