Toluene Dioxygenase-Catalyzed Synthesis of cis-Dihydrodiol Metabolites from 2-Substituted Naphthalene Substrates: Assignments of Absolute Configurations and Conformations from Circular Dichroism and Optical Rotation Measurements
作者:Marcin Kwit、Jacek Gawronski、Derek R. Boyd、Narain D. Sharma、Magdalena Kaik、Rory A. More O'Ferrall、Jaya S. Kudavalli
DOI:10.1002/chem.200801686
日期:——
cis-Dihydrodiol metabolites have been isolated from naphthalene and six 2-substituted naphthalene substrates. Their structures and absoluteconfigurations have been determined by a combination of calculated (TDDFT) and experimentally based circular dichroism (CD) and optical rotation (OR) methods. The "inverse" styrene helicity rule is shown to be incorrect for the interpretation of the CD spectra
Acid-Catalyzed Dehydration of Naphthalene-<i>cis-</i>1,2-dihydrodiols: Origin of Impaired Resonance Effect of 3-Substituents
作者:Jaya Satyanarayana Kudavalli、Derek R. Boyd、Narain D. Sharma、Rory A. More O’Ferrall
DOI:10.1021/jo201591r
日期:2011.11.18
substituted naphthalene-cis-1,2-dihydrodiols occur with loss of the 1- or 2-OH group to form 2- and 1-naphthols, respectively. Effects of substituents MeO, Me, H, F, Br, I, and CN at 3-, 6-, and 7-positions of the naphthalene ring are consistent with rate-determining formation of β-hydroxynaphthalenium ion (carbocation) intermediates. For reaction of the 1-hydroxyl group the 3-substituents are correlated by
A Diversity-Oriented Synthesis of Bicyclic <i>cis</i>-Dihydroarenediols, <i>cis</i>-4-Hydroxyscytalones, and Bicyclic Conduritol Analogues
作者:Parag Mukherjee、Soumya J. Singha Roy、Tarun K. Sarkar
DOI:10.1021/ol100557f
日期:2010.6.4
es, and bicyclic mimics of conduritol. Key features of this protocol include Barrett’s asymmetric hydroxyallylation, ring-closing metathesis (RCM), and completely regioselective Wackeroxidation of internalcyclicolefins.