ChemInform Abstract: On the Chemoselectivity of Formation of 2-(α-Hydroxyalkyl)-2,5-dihydrofurans from Allenic Diols.

On the chemoselectivity of formation of

On the chemoselectivity of formation of 2-(α-hydroxyalkyl)-2,5-dihydrofurans from allenic diols

✍ JoséM. Aurrecoechea; Mónica Solay 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 511 KB

The Ag(I)-promoted cyclization of 2.5~pentadiene-1,5diols containing both a ~tiary and a secondary or primary hydroxyl group, has been examined. In general, the reaction displays a preference for cyclixation through the more hindered tertiary hydroxyl group, sometimes to the exclusion of akernative

The synthesis of 2,5-dihydrofurans from

The synthesis of 2,5-dihydrofurans from α-allenic alcohols

✍ Pierre L. Beaulieu; Veronique M. Morisset; Dennis G. Garratt 📂 Article 📅 1980 🏛 Elsevier Science 🌐 French ⚖ 229 KB

a-Allenic alcohols react rapidly with PhSeCl to produce derivatives of 3-phenylseleno-2,5-dihydrofuran in high yields. The synthesis of heterocycles via the electrophilically-induced cyclization of unsaturated acids,' alcohols, 2 and phenols with areneselenenyl halides or derivatives thereof4 has re

ChemInform Abstract: Synthesis and Cycli

ChemInform Abstract: Synthesis and Cyclization of Diethylphosphono-Substituted α-Allenic Alcohols to 4-(Diethylphosphono)-2,5-dihydrofurans.

✍ Valery K. Brel 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB 👁 1 views

## 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 v

ChemInform Abstract: Tandem Enzyme/Gold-

ChemInform Abstract: Tandem Enzyme/Gold-Catalysis: From Racemic α-Allenic Acetates to Enantiomerically Enriched 2,5-Dihydrofurans in One-Pot.

✍ Martta Asikainen; Norbert Krause 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB

## 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 v

ChemInform Abstract: Total Synthesis of

ChemInform Abstract: Total Synthesis of (.+-.)-Dihydrokawain-5-ol. Regioselective Monoprotection of Vicinal syn-Diols Derived from the Iodocyclofunctionalization of α-Allenic Alcohols.

✍ R. W. FRIESEN; C. VANDERWAL 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 39 KB 👁 2 views

ChemInform Abstract: Synthesis of Enanti

ChemInform Abstract: Synthesis of Enantiomerically Enriched 2,5-Dihydrofuran Derivatives from Easily Available Enantiomerically Enriched 2-Butyne-1,4-diols by Stereospecific Transformation.

✍ Hiroyuki Saimoto; Masaru Yasui; Shin-ichiro Ohrai; Hiroshige Oikawa; Kazuhiro Yo 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 34 KB 👁 1 views

Synthesis of Enantiomerically Enriched 2,5-Dihydrofuran Derivatives from Easily Available Enantiomerically Enriched 2-Butyne-1,4-diols by Stereospecific Transformation. -The enantiomerically enriched butynols (IV) and (X) are prepared by enantioselective reduction of keto alcohols (I) and (VII) wit