The allylation of electron-rich arenes with allyl tosylate proceeded at 0 °C in the presence of [Rh(nbd)(CH3CN)2]PF6. Various oxygenated arenes were allylated with high para-selectivity in almost all cases. Especially in the reaction of anisoles, the tendency was remarkable.
Iridium(III)-catalyzed tandem Claisen rearrangement–intramolecular hydroaryloxylation of aryl allyl ethers to form dihydrobenzofurans
作者:Virginia H. Grant、Bing Liu
DOI:10.1016/j.tetlet.2005.01.006
日期:2005.2
Iridium(III)-catalyzed tandem Claisenrearrangement and intramolecular hydroaryloxylation of ally aryl ethers is described, which provides a mild method to prepare dihydrobenzofurans.
Dihydrobenzofuran production from catalytic tandem Claisen rearrangement–intramolecular hydroaryloxylation of allyl phenyl ethers in subcritical water
作者:Ligang Luo、Chunze Liu、Zhiqiang Hou、Yuanyuan Wang、Liyi Dai
DOI:10.1039/c4ra04689g
日期:——
mild method for the preparation of dihydrobenzofurans through hydrothermal catalytic tandem Claisen rearrangement–intramolecular hydroaryloxylation of allyl phenylethers. This reaction provides a new method for constructing dihydrobenzofurans, a process that is potentially applicable to natural product synthesis. SBA-15, TS-1, HZSM-5 were chosen as catalysts in a hydrothermal reaction medium between 200
[3,3]-Sigmatropic rearrangements of the acetoacetates of allyl alcohols (Carroll reaction) and allylphenyl ethers (Claisen reaction) on the surface of adsorbents
作者:S. I. Pogrebnoi、Yu. B. Kal'yan、M. Z. Krimer、V. A. Smit
DOI:10.1007/bf00958563
日期:1991.4
A method has been developed for effecting rearrangements of allylacetoacetates to gamma,delta-unsaturated ketones (Carroll rearrangement) and allylaryl ethers to the corresponding allylphenols (Claisen rearrangement) under conditions of adsorption on aluminum oxide and silica gel. The method provides a sharp reduction of the temperature of these reactions and improvement of their efficiency.
Saidi, Mohammad Reza, Heterocycles, 1982, vol. 19, # 8, p. 1473 - 1475