Hyperaromatic Stabilization of Arenium Ions: Acid-Catalyzed Dehydration of 2-Substituted 1,2-Dihydro-1-naphthols
作者:Jaya Satyanarayana Kudavalli、Dara Coyne、Rory A. More O’Ferrall
DOI:10.1021/jo2020483
日期:2012.1.6
correlation is taken to indicate that cis substuents are reacting normally, differentiated only by their inductive effects. The slower reactions of the trans isomers are the judged to be “abnormal”. This is confirmed by comparing effects of cis and trans β-OH substituents on the reactivities of dihydro phenols, naphthols, and phenanthrols. Whereas kH/kOH for cis substituents varies by less than 8-fold
Palladium-Catalyzed Enantioselective Alkylative Ring Opening
作者:Mark Lautens、Jean-Luc Renaud、Sheldon Hiebert
DOI:10.1021/ja993427i
日期:2000.3.1
Oxidative coupling of 2-substituted 1,2-dihydro-1-naphthols using Jones reagent: a simple entry into 3,3′-disubstituted 1,1′-binaphthyl-4,4′-diols
作者:Eric Fillion、Vincent E. Trépanier、Lauren G. Mercier、Anna A. Remorova、Rebekah J. Carson
DOI:10.1016/j.tetlet.2004.12.099
日期:2005.2
2-Substituted 1,2-dihydro-1-naphthols underwent regioselective oxidative dimerization, when treated with Jones reagent, to furnish 3,3'-disubstituted 1,1'-binaphthyl-4,4'-diols. A series of symmetrical binaphthols were prepared and it was shown that the coupling reaction proceeds via the sequential oxidation of 2-substituted 1,2-dihydro-1-naphthols to 2-substituted 1-naphthols, which oxidatively dehydrodimerized. (C) 2004 Elsevier Ltd. All rights reserved.
Addition of butyllithiums to benzonorbornadiene and 1,4-dihydronaphthalene 1,4-endo-oxide
作者:Ronald Caple、Grace M. S. Chen、John Daniel Nelson
DOI:10.1021/jo00818a032
日期:1971.9
Pd-Catalyzed Ring Opening of Oxa- and Azabicyclic Alkenes with Aryl and Vinyl Halides: Efficient Entry to 2-Substituted 1,2-Dihydro-1-naphthols and 2-Substituted 1-Naphthols
作者:Chi-Li Chen、Stephen F. Martin
DOI:10.1021/jo060299p
日期:2006.6.1
1,2-dihydronaphthols in good to excellent yields. These reactions occurred under very mild conditions with a variety of arylhalides bearing electron-withdrawing or -donating groups. Similarly, a 7-azabenzonorbornadiene substituted with an electron-withdrawing group on the nitrogen atom underwent facile ring-opening reaction with arylhalides to provide cis-2-substitued (1,2-dihydro-1-naphthyl)carbamates