Benzannulation of arynes with dimethylacetonedicarboxylates via an insertion-fragmentation-Dieckman-aromatization cascade: Expeditious entry to naphthoresorcinols and binaphthoresorcinols
dimethylacetonedicarboxylate (DMAD) proceeds through a 4-step cascade process to eventuate in a versatile one pot synthesis of functionally embellished naphthoresorcinols. Functional group amplifications and transformations on these entities have been explored with the intent to apply them for natural products syntheses and to access other interesting scaffolds.
Perylenequinone Natural Products: Enantioselective Synthesis of the Oxidized Pentacyclic Core
作者:Carol A. Mulrooney、Barbara J. Morgan、Xiaolin Li、Marisa C. Kozlowski
DOI:10.1021/jo9013832
日期:2010.1.1
An enantioselective approach to the perylenequinone core found in the mold perylenequinone natural products is outlined. Specifically, the first asymmetric syntheses of helical chiral perylenequinones absent any additional stereogenic centers are described. Key elements of the synthetic venture include a catalytic enantioselectivebiaryl coupling, a PIFA-induced naphthalene hydroxylation, and a palladium-mediated
Transition-Metal-Free Benzannulation of Tricarbonyl Derivatives with Arynes: Access to 1,3-Dinaphthol Precursors for the Synthesis of Rhodamine Dye Analogues
作者:Ganesh S. Ghotekar、Aslam C. Shaikh、M. Muthukrishnan
DOI:10.1021/acs.joc.8b02560
日期:2019.2.15
Herein, we report a transition-metal-free annulation reaction of benzynes and 1,3-oxopentanedioate for the synthesis of highly functionalized naphthalene derivatives for the first time. Additionally, the representative naphthalene derivatives have been successfully transformed into the new series of rhodamine dye analogues.
Development of a Catalytic Aromatic Decarboxylation Reaction
作者:Joshua S. Dickstein、Carol A. Mulrooney、Erin M. O'Brien、Barbara J. Morgan、Marisa C. Kozlowski
DOI:10.1021/ol070749f
日期:2007.6.1
A palladium-catalyzed aromatic decarboxylation reaction has been developed. With electron-rich aromatic acids, the reaction proceeds efficiently under fairly mild conditions in good yields. The method was useful with complex functionalized substrates containing hindered carboxylic acids.