47 research outputs found
Synthesis of 2-Alkynoates by Palladium(II)-Catalyzed Oxidative Carbonylation of Terminal Alkynes and Alcohols
Get PDFA homogeneous Pd(II) catalyst, utilizing a simple and inexpensive amine ligand (TMEDA), allows 2‐alkynoates to be prepared in high yields by an oxidative carbonylation of terminal alkynes and alcohols. The catalyst system overcomes many of the limitations of previous palladium carbonylation catalysts. It has an increased substrate scope, avoids large excesses of alcohol substrate and uses a desirable solvent. The catalyst employs oxygen as the terminal oxidant and can be operated under safer gas mixtures
ChemInform Abstract: Totally Stereocontrolled Intermolecular Pauson-Khand Reactions of N-(2-Alkynoyl) Sultams.
No full textChemInform Abstract: Diastereoselectivity in the Intermolecular Pauson-Khand Reaction of Chiral 2-Alkynoates.
No full textChemInform Abstract: A Convenient Preparation of N-(2-Alkynoyl) Derivatives of Chiral Oxazolidin-2-ones and Bornane-10,2-sultam.
No full textChemInform Abstract: Stereoselective Inter- and Intramolecular Pauson-Khand Reactions of N-(2-Alkynoyl) Derivatives of Chiral Oxazolidin-2-ones.
No full textScandium triflate, an efficient catalyst for formation and deprotection of geminal diacetates (acylals). Chemoselective protection of aldehydes in presence of ketones
No full textTotally Stereocontrolled Intermolecular Pauson−Khand Reactions of<i> N</i>-(2-Alkynoyl) Sultams
Full text linkTotally Stereocontrolled Intermolecular Pauson−Khand Reactions of<i> N</i>-(2-Alkynoyl) Sultams
No full textTotally Stereocontrolled Intermolecular
Pauson−Khand Reactions of N-(2-Alkynoyl)
Sultam
Catalytic asymmetric epoxidation of aldehydes. Optimization, mechanism, and discovery of stereoelectronic control involving a combination of anomeric and Cieplak effects in sulfur ylide epoxidations with chiral 1,3-oxathianes
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