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Homopropargyl Alcohols (homopropargyl + alcohol)
Selected AbstractsGold Catalysis: Efficient 1,3-Induction with Diastereotopic Homopropargyl Alcohols in the Phenol SynthesisADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 14-15 2009A. Stephen Abstract Furans with diastereotopic alkynyl groups were prepared and then converted to anellated phenols in gold-catalyzed reactions. In all cases a highly diastereoselective reaction was observed. The stereochemical outcome of the 1,3-induction could be assigned by two independent crystal structure analyses, showing a cis -arrangement of the two alkyl substituents on the benzoanellated cyclohexene ring. [source] ChemInform Abstract: Ring Opening/Fragmentation of Dihydropyrones for the Synthesis of Homopropargyl Alcohols.CHEMINFORM, Issue 35 2008Jumreang Tummatorn 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] Au(I)-Catalyzed Cyclization of tert-Butyl Carbonates Derived from Homopropargyl Alcohols: A Catalytic Alternative to Cyclic Enol Carbonates.CHEMINFORM, Issue 29 2006Ji-Eun Kang 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 Addition Reactions of Propargyl Bromides to Carbonyl Compounds with Gallium Catalyzed by IndiumADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 9 2005Ho Lee Abstract Reactions of organogallium reagents generated from propargyl bromides having substituents at the ,-position and gallium in the presence of 5,mol,% of indium with aldehydes and ketones selectively produced homoallenyl alcohols in good to excellent yields. Treatment of organogallium reagents obtained from propargyl bromide or propargyl bromides having substituents at the ,-position and gallium in the presence of 5,mol,% of indium with carbonyl compounds selectively afforded homopropargyl alcohols. [source] Synthesis of ,-Methoxyacrylate Natural Products Based on Box-PdII -Catalyzed Intermolecular Methoxycarbonylation of AlkynolesCHEMISTRY - AN ASIAN JOURNAL, Issue 10 2010Satoshi Motodate Abstract Bis(oxazoline)-palladium(II) catalyzed carbonylation of homopropargyl alcohols afforded acyclic methoxyacrylate 2 and 6-membered lactone 3,a,k in good combined yield. In the case of propargyl alcohols, 5-membered lactones 3,p, 3,q, 16 were obtained in moderate yields. The one-pot synthesis of kawa lactones 3,a, 3,r, 3,s and formal synthesis of dihydroxycystothiazole,A and dihydroxycystothiazole,C are presented. To elucidate the stereochemistry of (+)-annularin G and (,)-annularin H, the first asymmetric syntheses of these natural products were achieved. [source] | ||||||||||