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Intramolecular Friedel (intramolecular + friedel)
Selected AbstractsIron(III)-Catalyzed Intramolecular Friedel,Crafts Alkylation of Electron-Deficient Arenes with ,-Activated AlcoholsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 14-15 2009Marco Bandini Abstract "Deficient" but "efficient", the first example of a catalytic Friedel,Crafts alkylation of arenes, carrying electron-withdrawing groups, with alcohols is reported. The optimized iron(III) chloride (97%) catalyzed allylation, benzylation and propargylation procedures open an access to a range of tetrahydronaphthalenes, tetrahydroisoquinolines and tetrahydrobenzo[d]azepines featuring tertiary benzylic stereocenters in excellent yields (up to 92%) and short reaction times. [source] Ligand-Free Silver(I)-Catalyzed Intramolecular Friedel,Crafts Alkylation of Arenes with Allylic AlcoholsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 3 2009Marco Bandini Abstract The silver-catalyzed direct activation of allylic alcohols as electrophilic partners for intramolecular Friedel,Crafts alkylation of arenes is described. Use of silver triflate (AgOTf; 10 mol%) enabled functionalized 1-vinyl-1,2,3,4-tetrahydronaphthalenes and a 4-vinyl-1,2,3,4-tetrahydroisoquinoline to be isolated in good yields with high levels of regiochemistry, under a ligand-free regime. [source] ChemInform Abstract: Indanones and Indenols from 2-Alkylcinnamaldehydes via the Intramolecular Friedel,Crafts Reaction of Geminal Diacetates.CHEMINFORM, Issue 1 2010Gary B. Womack Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Enantioselective Intramolecular Friedel,Crafts-Type ,-Arylation of Aldehydes.CHEMINFORM, Issue 26 2009K. C. Nicolaou Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Lewis Acid Catalyzed Ring-Opening Intramolecular Friedel,Crafts Alkylation of Methylenecyclopropane 1,1-DiestersCHEMINFORM, Issue 17 2009Bao Hu Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Synthesis of Aromatic Cycloketones via Intramolecular Friedel,Crafts Acylation Catalyzed by Heteropoly Acids.CHEMINFORM, Issue 25 2007Kun Lan Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Regioselective and Versatile Synthesis of Indoles via Intramolecular Friedel,Crafts Heteroannulation of Enaminones.CHEMINFORM, Issue 30 2006Maria del Carmen Cruz Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Convenient Synthesis of Indene Derivatives via Intramolecular Friedel,Crafts Cyclization of Tetraaryl Substituted 1,3-Butadienes.CHEMINFORM, Issue 28 2006Xun Sun Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Synthesis of 1-Indanones by Intramolecular Friedel,Crafts Reaction of 3-Arylpropionic Acids Catalyzed by Tb(OTf)3.CHEMINFORM, Issue 23 2004Dong-Mei Cui Abstract For Abstract see ChemInform Abstract in Full Text. [source] Synthesis of 1-Tetralones by Intramolecular Friedel,Crafts Reaction of 4-Arylbutyric Acids Using Lewis Acid Catalysts.CHEMINFORM, Issue 34 2003Dong-Mei Cui Abstract For Abstract see ChemInform Abstract in Full Text. [source] Stereoselective Total Synthesis of Xestodecalactone CHELVETICA CHIMICA ACTA, Issue 9 2009Karuturi Rajesh Abstract A simple and highly efficient stereoselective total synthesis of xestodecalactone C (IIb), a polyketide natural product, was achieved (Scheme,2). The synthesis involved Keck's asymmetric allylation, a iodine-induced electrophilic cyclization, and an intramolecular Friedel,Crafts acylation as key steps. [source] A Catalytic and Enantioselective Synthesis of trans- 2-Amino-1- aryltetralinsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 6 2009Saumen Hajra Abstract The bis-oxazoline-copper complex-catalyzed aziridination of alkenes followed by an intramolecular Friedel,Crafts alkylation of the tethered and in situ generated aziridine provides a one-pot, general and efficient method for the synthesis of trans -2-amino - 1-aryltetralins from a mixture of 2- arylethylstyrenes (E/Z,85:15) with excellent dia- stereo- (dr>99:1) and enantioselectivities (up to 92% ee). [source] Ligand-Free Silver(I)-Catalyzed Intramolecular Friedel,Crafts Alkylation of Arenes with Allylic AlcoholsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 3 2009Marco Bandini Abstract The silver-catalyzed direct activation of allylic alcohols as electrophilic partners for intramolecular Friedel,Crafts alkylation of arenes is described. Use of silver triflate (AgOTf; 10 mol%) enabled functionalized 1-vinyl-1,2,3,4-tetrahydronaphthalenes and a 4-vinyl-1,2,3,4-tetrahydroisoquinoline to be isolated in good yields with high levels of regiochemistry, under a ligand-free regime. [source] |