Asymmetric ylide reactions exploit carbanion–heteroatom bonded intermediates to forge carbon–carbon and carbon–heteroatom bonds with high stereocontrol. Sulfur, phosphorus and ammonium ylides serve as ...
The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
A new reagent has moved carbon-atom transfer out of the chemical flatlands, allowing chemists to place a single carbon atom so that it makes bonds to four different substituents. The reagent makes ...
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