Results 151 to 160 of about 25,864 (264)

Isotellurourea‐Catalyzed Enantioselective (4+2)‐Heterocycloadditions of But‐2‐ynoates and Michael Acceptors

European Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.
Isotelluroureas allow for the use of alkynoates for asymmetric (4+2)‐heterocycloadditions with different Michael acceptors. Alk‐2‐ynoates are readily available starting materials which, in principle, can be utilized for cycloadditions in analogy to structurally similar allenoates.
Anna Scheucher, Mario Waser
wiley   +1 more source

A Free N-Heterocyclic Carbene and Its Metal Complex. [PDF]

Angew Chem Int Ed Engl
Das A, Hung TC, Rank A, Giselbrecht F, Schön J, Das M, Doltsinis N, Amirjalayer S, Repp J, Glorius F.   +9 more
europepmc   +1 more source

Masked Silylenes: Controlled Generation and Reactivity Under Thermal and Equilibrium Conditions

European Journal of Inorganic Chemistry, Volume 29, Issue 18, 22 June 2026.
This Review provides an overview of masked silylenes as bench‐stable precursors that release silylenes (R2Si:) under thermal activation or reversible equilibria. Precursor preparation, generation pathways, and characteristic reactivity are summarized, including trapping chemistry, reversible interconversions, insertion‐type processes, and small ...
Kei Ota, Kanata Miyahara, Norio Nakata
wiley   +1 more source

1,1‐and 1,2‐Diborylalkenes: Preparation and Synthetic Applications

Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.
In this review, we highlight recent advances in the synthesis and reactivity of 1,1‐diborylalkenes and 1,2‐diborylalkenes, along with various transformations leading to C‐C, C‐heteroatom, and multicomponent products. By providing a comprehensive and practical resource, this review aims to assist researchers in exploring the synthetic utility of 1,1 and
Jayaram Vankudoth, Maruti Mali, Fabienne Berrée   +2 more
wiley   +1 more source

Advances in Catalysis Using N-Heterocyclic Carbene Platinum Complexes. [PDF]

Molecules
Smoczyńska A, Ostrowska S, Pietraszuk C.   +2 more
europepmc   +1 more source

Visible Light‐Induced Transformation of β‐Aryl‐α,β‐Unsaturated Acylsilanes into Indenol Derivatives via Alkenyl Siloxycarbenes

Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.
Visible light activates β‐aryl α,β‐unsaturated acylsilanes to form indenols without catalysts or metals. A stepwise photochemical cascade reorganizes simple precursors through isomerization, rearrangement, and ring formation. The process highlights sustainable reaction design while showcasing the synthetic power of acylsilane photochemistry and the ...
Adrián Álvarez, Iván Rivilla, Fernando P. Cossío, Manuel Plaza, Félix Rodríguez   +4 more
wiley   +1 more source

Iodine‐Mediated Electrochemical Diastereoselective Synthesis of Enaminones

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
This work describes an efficient electrochemical (EC) method for transforming thioamides into enaminones via reaction with organic diazo compounds. The electrochemical approach is cost‐effective, mild, and proceeds through the in situ electrochemical generation of a copper complex.
Ijaz Khan, Głowacki Michał P., Rybicka‐Jasińska Katarzyna   +2 more
wiley   +1 more source

N‑Heterocyclic Carbene Stabilized Aluminum Alkyls and Their Reactivity toward NHC-Alanes. [PDF]

Organometallics
Burnett S, Kennedy AR, Weetman CE.
europepmc   +1 more source

Redox‐Active Guanidines

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley   +1 more source

N-Heterocyclic Carbene Stabilized Bisacylgermylenes. [PDF]

Chemistry
Paris M, Fischer RC, Kelterer AM, Haas M.   +3 more
europepmc   +1 more source