Results 231 to 240 of about 415,977 (339)

Synthesis of 3,4‐Dihydroquinazolinones via Base‐Promoted Formal [4 + 2] Cycloadditions

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
In this work a straightforward, metal‐free and general protocol for the synthesis of 3,4‐dihydroquinazolin‐2(1H)‐ones is described. From 2‐chloromethyl anilines upon treatment with a base an aza‐o‐quinone methide is in situ generated. This highly reactive intermediate readily reacts through [4 + 2] cycloaddition with isocyanates affording 32 ...
Sergio Torres‐Oya   +2 more
wiley   +1 more source

Cu(I)‐Catalyzed Interrupted Cycloaddition Between Azides, Ag(I)‐Acetylides, and Diorganoyl Dichalcogenides

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Unleashing the power of Ag(I)‐acetylides with LiCl/dimethyl sulfoxide (DMSO). The LiCl/DMSO mixture have an unexplored ability to dramatically increase the solubility of Ag(I)‐acetylides regardless of their molecular structure, which is explored to achieve high chemoselectivity in the Cu(I)‐catalyzed interrupted cycloaddition between organic azides, Ag(
Diego Seckler   +8 more
wiley   +1 more source

Development of a quantitative PMA-16S rRNA gene sequencing workflow for absolute abundance measurements of seawater microbial communities. [PDF]

open access: yesEnviron Microbiome
Thomas MC   +6 more
europepmc   +1 more source

A Study of Corrosion of Steel Tubes in Flowing Seawater under Heat-transfer Condition

open access: bronze, 1975
Masanori Kiyoshige   +3 more
openalex   +2 more sources

Naphthalimide Derivatives as Film‐Based Fluorescent Sensors for Rapid Detection of Illicit Drugs

open access: yesAdvanced Sensor Research, EarlyView.
Four novel 1,8‐naphthalimide (NI) derivatives for the detection of illicit drugs with different substituents at the 4‐position are reported. Their contrasting fluorescence responses enables five illicit drugs to be distinguished from interferents with a mean classification accuracy of 81%.
Ming Chen   +7 more
wiley   +1 more source

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