39070-93-4Relevant academic research and scientific papers
Catalytic c-c cleavage/alkyne-carbonyl metathesis sequence of cyclobutanones
Gao, Jiqiang,Liu, Chunhui,Li, Zhongjuan,Liang, Haotian,Ao, Yuhui,Zhao, Jinbo,Wang, Yuchao,Wu, Yuanqi,Liu, Yu
supporting information, p. 3993 - 3999 (2020/06/08)
A ring-opening/alkyne-carbonyl metathesis sequence of alkyne-tethered cyclobutanones catalyzed by AgSbF6 is realized for the first time to furnish multisubstituted naphthyl ketones under mild conditions. A range of substrates decorated with various substituents at different positions were all well accommodated. Preliminary mechanistic studies show that silver salt acted as a Lewis acid to facilitate both C-C cleavage of the cyclobutanone moiety and the subsequent metathesis between C═O and CC bonds.
NHC Bronsted base-catalyzed transformations of isochromene derivatives: Regulation of products by the structures of carbene catalysts
Fan, Xing-Wen,Cheng, Ying
, p. 9079 - 9084,6 (2020/10/15)
Two different transformations of α-(isochromen-1-yl)ketones catalyzed by NHC Bronsted bases are reported. In the presence of a triazole carbene, α-(isochromen-1-yl)ketones isomerized into β-(2-(aroylmethylene) phenyl)-α,β-unsaturated ketones in 38-88% yields, while the same reaction catalyzed by an imidazole carbene produced 1-aroylnaphthalene derivatives in 90-99% yields. This work not only provides a new method for the synthesis of a novel type of α,β-unsaturated ketone and multi-substituted naphthalene derivatives, but also advances the application of NHC catalysts in the field of Bronsted base-catalysis.
Gold-catalyzed cyclo-isomerization of 1,6-diyne-4-en-3-ols to form naphthyl ketone derivatives
Lian, Jian-Jou,Liu, Rai-Shung
, p. 1337 - 1339 (2007/12/27)
We report a new efficient gold-catalyzed cyclization of 1,6-diyne-4-en-3-ols to give naphthyl ketone derivatives under ambient conditions. The value of this cyclization is reflected by its applicability to a wide range of alcohol substrates. The Royal Society of Chemistry.
