@article{380, keywords = {2, 3-dihydrobenzo[b]furans, Flavanones, Hypervalent iodine, Stereospecific ring contraction}, author = {L. Juhász and L. Szilágyi and S. Antus and J. Visy and Ferenc Zsila and Miklós Simonyi}, title = {New insight into the mechanism of hypervalent iodine oxidation of flavanones}, abstract = {Flavanone (1) on oxidation with iodobenzene diacetate (PIDA) in the presence of sulfuric acid in trimethyl orthoformate (TMOF) undergoes a stereospecific ring contraction by an aryl shift to result in trans methyl 2-aryl-2,3-dihydrobenzo[b]furan-3-carboxylate (4a) as a major product. The mechanism of this transformation has been discussed on the basis of NMR, CD and chiral HPLC evidence. © 2002 Elsevier Science Ltd. All rights reserved.}, year = {2002}, journal = {Tetrahedron}, volume = {58}, pages = {4261-4265}, month = {2002}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0037140776&partnerID=40&md5=0e3dc013f27036e0cfce6bd70cb17781}, note = {Cited By :29Export Date: 25 February 2016}, }