The amount of research activity concerning α‐methylene‐γ‐butyrolactones and α‐alkylidene‐
γ‐butyrolactones has increased dramatically in recent years. This Review summarizes the …

Abstract α‐Alkylidene‐substituted δ‐lactones and corresponding γ‐and δ‐lactams constitute
important classes of natural compounds that display diverse biological activities. This review …

A transition‐metal‐free Cs2CO3‐catalyzed α‐hydroxylation of carbonyl compounds with O2
as the oxygen source is described. This reaction provides an efficient approach to tertiary α …

An unprecedented strain‐driven dyotropic rearrangement of α‐methylene‐β‐lactones has
been realized, which enables the efficient access of a wide range of α‐methylene‐γ …

Seit einigen Jahren erlebt die Forschung an α‐Methylen‐γ‐butyrolactonen einen enormen
Aufschwung. Diese Übersicht beschreibt die Strukturen, die biologische Aktivität und die …

An iron-catalyzed cascade reaction of radical reduction of allyl alcohols and acetylenic acids
to construct polysubstituted α-alkenyl lactones has been developed. In this paper, various …

A one‐pot tandem process involving hydrolysis, Knoevenagel condensation, Michael
addition, and Conia‐ene (HKMC) reactions has been developed for the rapid synthesis of …

Malonyl peroxides act both as oxidants and reagents for C− O coupling in reactions with
methyl and silyl enol ethers. In the proposed conditions, the oxidative C− O coupling of …

Pentalenolactone A (2) is a prominent member of a group of naturally occurring antibiotics (1–
8 in Scheme 1) produced by prokaryotic organisms.[1] These compounds exhibit a broad …

Abstract α‐exo‐Methylene‐γ‐butyrolactones and α‐exo‐methylene‐δ‐valerolactones
constitute an important group of natural and bioactive products. An enantioselective …