Results 131 to 140 of about 1,703,017 (234)

Archaeal Genes Code for GGDEF Domain Proteins With Diguanylate Cyclase Activity

open access: yesMolecular Microbiology, Volume 126, Issue 5, Page 576-595, November 2026.
A biofilm‐like mode of growth is hypothesized to be required for the emergence of cellular life. Occurrence of common biofilm gene products in current Bacteria and Archaea is an indication for their previous presence in the last universal common ancestor LUCA and perhaps even in the first universal common ancestor FUCA.
Roman Sidorov   +6 more
wiley   +1 more source

Controllable Access to Diazo-functionalized 2‑Methylene-2,3-dihydrofurans and Diazo-functionalized Furans from Enynones and Diazo Carbonyl Compounds

open access: yes
Using enynones and diazo carbonyl compounds as identical starting materials, methods for chemoselective and regioselective constructs of diazo-functionalized 2-methylene-2,3-dihydrofurans and diazo-functionalized trisubstituted furans have been ...
Yu Zhang (12946)   +1 more
core   +1 more source

Rhodium Catalyzed Arylation of Diazo Compounds with Aryl Boronic Acids

open access: yes, 2016
A general and efficient synthesis of diarylacetate, a diarylmethine derivative, was accomplished through rhodium catalyzed direct arylation of diazo compounds with arylboronic acids.
Jayanta Ghorai (1626721)   +1 more
core   +1 more source

Synthetic Strategies for the Construction of Cyclobutane‐Fused Heterocycles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 40, 27 October 2026.
Cyclobutane‐fused heterocycles are important motifs commonly present in bioactive compounds, recognized for their rigid 3D structures that confer unique properties. However, synthesizing these compounds remains challenging. This review discusses current methods for their synthesis, such as photochemical, metal‐catalyzed, and Lewis acid‐mediated [2 + 2]
Michela Vargiu   +2 more
wiley   +1 more source

Diazo and diazonium compounds as a primary explosives (except 2-diazo-4,6-dinitrophenol).

open access: yes, 2013
Bakalářská práce ?Třaskaviny na bázi diazo a diazoniových sloučenin (bez dinolu)? se zabývá problematikou třaskavin z oblasti diazosloučenin, které již v historii byly zkoumány a které nakonec nenalezly praktické uplatnění jako třaskaviny.
Fučík, Robin
core   +1 more source

Selective N‐Functionalization of Pyrazoles

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 40, 27 October 2026.
This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek   +2 more
wiley   +1 more source

Cyclopropylamine‐Derived Distonic Iminium Radicals: Photoinduced Strategies in Chemo‐ and Stereo‐Selective Synthesis

open access: yesChemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua   +3 more
wiley   +1 more source

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