Results 111 to 120 of about 7,352 (256)

Regio‐, Stereoselective, Aerobic and Metal‐Free Synthesis of Z‐Vinyl Sulfides: One‐Pot Hydroiodination of Internal Alkynes and in situ Sulfenylations

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 13, July 23, 2025.
Abstract A novel, metal‐free, air‐ and moisture‐compatible one‐pot tandem protocol for the regio‐ and stereoselective synthesis of Z‐vinyl sulfides (achieving yields up to 99%), is reported. This straightforward and efficient process combines the selective hydroiodination of internal alkynes, promoted by the eutectic mixture choline iodide (ChI)/p‐TsOH
Gloria Morís‐Menéndez   +5 more
wiley   +1 more source

Electrochemical Oxidative Radical Polar Crossover Route to 1,4‐Keto Carboxylates Mediated by Anchimeric Assistance

open access: yesChemistry – A European Journal, Volume 31, Issue 41, July 22, 2025.
In this work we developed an electrochemical method for 1,4‐dioxygenated compounds, offering broad scope, functional group compatibility, and diastereoselectivity. Abstract The 1,4‐keto carboxylate scaffold is present in the structure of many biologically relevant compounds.
Ian MacLean   +5 more
wiley   +1 more source

Epimerization of chlorophyll derivatives [PDF]

open access: yes, 1992
Mazaki, Hitoshi   +4 more
core   +1 more source

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