Recent developments in sulfur-and selenium-catalyzed oxidative and isohypsic functionalization reactions of alkenes

A Breder, S Ortgies - Tetrahedron Letters, 2015 - Elsevier
This digest manuscript delineates recent developments in the context of sulfur-and selenium-
catalyzed oxidative and isohypsic functionalization reactions of simple alkenes. The …

[PDF][PDF] Furan oxidations in organic synthesis: recent advances and applications

P Merino, T Tejero, JI Delso… - Current Organic Chemistry, 2007 - researchgate.net
Oxidation reactions of several furan derivatives as effective methods for the preparation of
key synthetic intermediates are reviewed. Depending on the oxidizing reagent the furan ring …

Metal-catalyzed 1, 2-shift of diverse migrating groups in allenyl systems as a new paradigm toward densely functionalized heterocycles

AS Dudnik, AW Sromek, M Rubina, JT Kim… - Journal of the …, 2008 - ACS Publications
A general, mild, and efficient 1, 2-migration/cycloisomerization methodology toward
multisubstituted 3-thio-, seleno-, halo-, aryl-, and alkyl-furans and pyrroles, as well as fused …

Catalytic Chalcogenylation under Greener Conditions: A Solvent-Free Sulfur- and Seleno-functionalization of Olefins via I2/DMSO Oxidant System

AA Vieira, JB Azeredo, M Godoi, C Santi… - The Journal of …, 2015 - ACS Publications
Herein, we report a solvent-and metal-free methodology for the alkoxy-chalcogenylation of
styrenes, using molecular iodine as a catalyst, DMSO as a stoichiometric oxidant, and …

Preparative and mechanistic studies toward the rational development of catalytic, enantioselective selenoetherification reactions

SE Denmark, D Kalyani, WR Collins - Journal of the American …, 2010 - ACS Publications
A systematic investigation into the Lewis base catalyzed, asymmetric, intramolecular
selenoetherification of olefins is described. A critical challenge for the development of this …

Hydroxyselenylation and Tethered Silanoxyselenylation of Allylic Silanols

H Joshi, S Sathyamoorthi - The Journal of organic chemistry, 2022 - ACS Publications
We present protocols for the highly regioselective hydroxyselenylation and
silanoxyselenylation of allylic silanols. N-(Phenylseleno) phthalimide acts as the …

Polystyrene-supported proline and prolinamide. Versatile heterogeneous organocatalysts both for asymmetric aldol reaction in water and α-selenenylation of …

F Giacalone, M Gruttadauria, AM Marculescu, R Noto - Tetrahedron letters, 2007 - Elsevier
A simple and efficient synthesis of polystyrene-supported proline and prolinamide has been
carried out. Polystyrene-supported proline has been used as organocatalyst in the …

Stereoselective Haliranium, Thiiranium and Seleniranium Ion‐Triggered Friedel–Crafts‐Type Alkylations for Polyene Cyclizations

B Maji - Advanced Synthesis & Catalysis, 2019 - Wiley Online Library
The review is aimed at describing the advances in electrophilic “iranium” ion‐triggered
Friedel–Crafts‐type alkylation for polyene cyclizations. Owing to the great potential of halo …

Recent developments in γ-lactone synthesis

S Gil, M Parra, P Rodriguez… - Mini-Reviews in Organic …, 2009 - ingentaconnect.com
In recent years, several classes of biologically active molecules containing the γ-lactone
ring, pesticides, plant and fungal growth inhibitors, and antibiotics have been found. Thus …

Acid-Catalyzed regioselective sulfetherification of alkenols and stereoselective rearrangement of tetrahydrofuran to tetrahydropyran

H Wang, D Huang, D Cheng, L Li, Y Shi - Organic Letters, 2011 - ACS Publications
An efficient acid-catalyzed sulfetherification of various unsaturated alcohols with
sulfenamides to form tetrahydrofurans and tetrahydropyrans regioselectively is described …