Results 261 to 270 of about 454,681 (325)

Nitrogen Insertion via Asymmetric Condensation and Chirality Transfer: A Stereodivergent Entry to Cyanocyclopropanes

open access: yesAngewandte Chemie, EarlyView.
The synthesis of cyanocyclopropanes is achieved via asymmetric nitrogen insertion into prochiral cyclobutanones. Key mechanistic steps involve an organocatalyzed asymmetric condensation followed by chirality transfer via an intercepted Neber rearrangement.
Marlene Arnold   +4 more
wiley   +2 more sources

Controlled Catalysis Delivering High Molecular Weight Polyesters as Recyclable Alternatives to Polystyrenes

open access: yesAngewandte Chemie, EarlyView.
This work exemplifies how to make high molar mass ring opening copolymerization (ROCOP) polyesters as engineering plastics, informing upon their thermal and mechanical properties. Leading polyesters, prepared by epoxide/anhydride ROCOP, show high glass transition temperatures and tensile and flexural strengths, matching or exceeding polystyrene ...
Nora Jannsen   +4 more
wiley   +2 more sources

Isolated and Paired Metal Sites in Zeolites Using Solid‐State Ion Exchange

open access: yesAngewandte Chemie, EarlyView.
Transition metal ions housed in the zeolitic micropore are broadly applied in catalysis. These model active sites provide a link between homogeneous, enzyme, and solid catalysts. The synthetic strategy used to generate these cationic sites has a significant influence on the catalytic activity.
Rio G. Moore, James M. Crawford
wiley   +2 more sources

Sarah Guerin

open access: yesAngewandte Chemie, EarlyView.
“The most rewarding part of my job is getting people excited about science… An essential quality of a good research atmosphere is allowing creative thinking, and snacks…” Find out more about Sarah Guerin in her Introducing… Profile.
Sarah Guerin
wiley   +2 more sources

Reducing the communication complexity with quantum entanglement [PDF]

open access: green, 2001
Peng Xue   +4 more
openalex   +1 more source

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