2756-79-8Relevant academic research and scientific papers
Investigating the microwave-accelerated Claisen rearrangement of allyl aryl ethers: Scope of the catalysts, solvents, temperatures, and substrates
Hui, Zi,Jiang, Songwei,Qi, Xiang,Ye, Xiang-Yang,Xie, Tian
supporting information, (2020/05/18)
The microwave-accelerated Claisen rearrangement of allyl aryl ethers was investigated, in order to gain insight into the scope of the catalysts, solvents, temperatures, and substrates. Among the catalysts examined, phosphomolybdic acid (PMA) was found to greatly accelerate the reaction in NMP, at temperatures ranging from 220 to 300 °C. This method was found to be useful for preparing several intermediates previously reported in the literature using precious metal catalysts such as Au(I), Ag(I), and Pt(II). Additionally, substrates bearing bromo and nitro groups on the aryl portion required careful tailoring of the reaction conditions to avoid complex product profiles.
'Aromatic ring umpolung', a rapid access to the main core of several natural products
Guérard, Kimiaka C.,Sabot, Cyrille,Beaulieu, Marc-André,Giroux, Marc-André,Canesi, Sylvain
scheme or table, p. 5893 - 5901 (2010/09/09)
Treatment of various substituted phenols in the presence of (diacetoxyiodo)benzene promotes the formation of a phenoxenium ion, a very electrophilic species able to react with various nucleophiles leading rapidly to a plethora of different cores present i
On the way to an oxidative Hosomi-Sakurai reaction
Sabot, Cyrille,Commare, Bruno,Duceppe, Marc-Alexandre,Nahi, Salima,Guérard, Kimiaka C.,Canesi, Sylvain
experimental part, p. 3226 - 3230 (2009/06/06)
An oxidative allylation process mediated by a hypervalent iodine reagent has been performed on polysubstituted phenols. This reaction, occurring in useful to good yields, leads to a rapid access to dienones containing a quaternary carbon center. Georg Thieme Verlag Stuttgart.
