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ChemInform Abstract: Stereo- and Enantiospecific Reactions of 1,4-Benzoquinones with Styrenyl Systems: Stereoselective Syntheses of Neolignans, Pterocarpans and Several Naturally Occurring 2-Aryl-2,3- dihydrobenzofuran Systems

✍ Scribed by T. A. ENGLER

Book ID: 112030382
Publisher: John Wiley and Sons
Year: 2010
Weight: 26 KB
Volume: 27
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199615309

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[Studies in Natural Products Chemistry] Stereoselective Synthesis (Part J) Volume 16 || Stereo- and enantiospecific reactions of 1,4-benzoquinones with styrenyl systems: Stereoselective syntheses of neolignans, pterocarpans and several naturally occurring 2-aryl-2,3-dihydrobenzofuran systems

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Cycloaddition reactions of 1,4-benzoquin

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ChemInform Abstract: Switchable Regiosel

ChemInform Abstract: Switchable Regioselectivity in Lewis Acid Promoted Reactions of 1,4- Benzoquinone Monoimides with Styrenyl Systems: Selective Syntheses of Either 2-Aryl-2,3-dihydrobenzofurans or 2-Aryl-2,3-dihydroindoles.

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ChemInform Abstract: Lewis Acid Controll

ChemInform Abstract: Lewis Acid Controlled Regioselectivity in Reactions of Styrenyl Systems with Benzoquinone Monoimides: New Regioselective Syntheses of Substituted 2-Aryl-2,3-dihydrobenzofurans, 2-Aryl-2,3-dihydroindoles, and 2-Arylindoles.

✍ T. A. ENGLER; W. CHAI; K. O. LATESSA 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 36 KB 👁 2 views

ChemInform Abstract: Asymmetric Reaction

ChemInform Abstract: Asymmetric Reactions of 2-Methoxy-1,4-benzoquinones with Styrenyl Systems: Enantioselective Syntheses of 8-Aryl-3-methoxybicyclo[4.2.0]oct-3-en-2,5-diones, 7-Aryl-3-hydroxybicyclo[3.2.1]oct-3-en-2,8-diones, 2-Aryl-6-methoxy-2,3-dihydrobenzofuran-5-ols, and Pterocarpans.

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The chiral titanium complex, derived from TiCl 4 , Ti(O-iPr) 4 , and dioxole (+)-PPD, effectively promotes the enantioselective formation of compounds (III)/(VII) and (V)/(IX) in good yields and high e.e. from (E)-alkene (II) and benzoquinones (I) or (VI). Compounds (IV)/(VIII), which are also forme

Switchable regioselectivity in lewis aci

Switchable regioselectivity in lewis acid-promoted reactions of 1,4-benzoquinone monoimides with styrenyl systems: Selective syntheses of either 2-aryl-2,3-dihydrobenzofurans or 2-aryl-2,3-dihydroindoles

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