155932-36-8Relevant articles and documents
NOVEL RUTHENIUM COMPLEXES, METHODS OF THEIR PREPARATION AND APPLICATION THEREOF IN OLEFIN CROSS METATHESIS
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Page/Page column 34, (2022/03/07)
The invention relates to novel ruthenium complexes of general formula 4 in which the substituents are defined herein. The invention relates also to methods for preparing such compounds and use thereof as catalysts and/or (pre)catalysts in olefin cross metathesis.
Metal-free synthesis of indanes by iodine(iii)-mediated ring contraction of 1,2-dihydronaphthalenes
Siqueira, Fernanda A.,Ishikawa, Eloisa E.,Fogac?a, Andre?,Faccio, Andre?a T.,Carneiro, Va?nia M. T.,Soares, Rafael R. S.,Utaka, Aline,Te?be?ka, Iris R. M.,Bielawski, Marcin,Olofsson, Berit,Silva Jr., Luiz F.
body text, p. 1795 - 1807 (2012/06/01)
A metal-free protocol was developed to synthesize indanes by ring contraction of 1,2-dihydronaphthalenes promoted by PhI(OH)OTs (HTIB or Koser's reagent). This oxidative rearrangement can be performed in several solvents (MeOH, CH3CN, 2,2,2-trifluoroethanol (TFE), 1,1,1,3,3,3-hexafluoroisopropanol (HFIP), and a 1:4 mixture of TFE:CH2Cl2) under mild conditions. The ring contraction diastereoselectively gives functionalized trans-1,3-disubstituted indanes, which are difficult to obtain in synthetic organic chemistry. ?2011 Sociedade Brasileira de Qui?mica.
Ring contraction of 1,2-dihydronaphthalenes promoted by thallium(III) in acetonitrile: A diastereoselective approach to indanes
Ferraz, Helena M. C.,Carneiro, Vania M. T.,Silva Jr., Luiz F.
experimental part, p. 385 - 388 (2009/06/18)
Trans-1,3-Disubstituted indanes are conveniently accessed by a stereoselective ring contraction of 1,2-dihydronaphthalenes upon treatment with thallium(III) nitrate (TTN) in acetonitrile. Under these conditions, the oxidative rearrangement of either di- or trisubstituted double bonds is possible. Georg Thieme Verlag Stuttgart.