Results 201 to 210 of about 42,802 (288)

Acid‐Catalyzed Synthesis of Si‐Stereogenic Silanes

Chinese Journal of Chemistry, Volume 44, Issue 8, Page 1212-1222, 15 April 2026.
Si‐stereogenic silanes are important structural motifs in chemical synthesis, medicinal chemistry, and materials science. However, their catalytic enantioselective synthesis has largely relied on transition‐metal catalysts. Recently, Brønsted acids have been developed as promising alternatives.
Jung Tae Han, Benjamin List
wiley   +1 more source

The Catalytic Asymmetric Mukaiyama-Michael Reaction of Silyl Ketene Acetals with Cyclic Enones: Short Routes to Jasmonates. [PDF]

J Am Chem Soc
Xu R, Zhou H, Bae HY, Wakchaure VN, Baldinelli L, Leach IF, Bistoni G, Kraft P, List B.   +8 more
europepmc   +1 more source

Chemoselectivity and Enantioselectivity in the Conjugate Reduction of Cinnamate Esters and a Tandem Conjugate Reduction‐Ester Hydrogenation Using Manganese Catalysts

European Journal of Organic Chemistry, Volume 29, Issue 14, 15 April 2026.
An improved synthesis of a manganese catalyst used for hydrogenation of ketones, esters and imines is reported. The catalyst has now been found to effect tandem conjugate reduction‐ester hydrogenations with very low amounts of allylic alcohol by‐products.
José A. Fuentes, Matthew L. Clarke
wiley   +1 more source

Asymmetric synthesis of planar-chiral metacyclophanes <i>via</i> aromatic amination enabled enantioselective desymmetrization. [PDF]

Chem Sci
Zhou C, Zhou J, Zhang L, Xie W, Gu H, Liu H, Yang X.   +6 more
europepmc   +1 more source

Synthesis of Sulfur Heterocycles by Palladium‐Catalyzed Cyclization

European Journal of Organic Chemistry, Volume 29, Issue 14, 15 April 2026.
In spite of the well‐known palladium thiophilicity, sulfur‐containing acyclic substrates may efficiently undergo several different kinds of palladium‐catalyzed cyclization processes leading to highly important sulfur heterocycles in one synthetic step. Advances in this challenging and stimulating field of research are presented in this review.
Bartolo Gabriele
wiley   +1 more source

Rapid and Stereoselective Ring‐Opening Polymerization of rac‐Lactide Enabled by a Chiral Cyclopropenimine–Thiourea Catalyst

Angewandte Chemie, Volume 138, Issue 15, 6 April 2026.
Chiral cyclopropenimine–thiourea organocatalysts enabled both high reactivity and precise stereocontrol in the ring‐opening polymerization of rac‐lactide. The bifunctional system exhibited a TOF up to 1,710 h−1 with Pm = 0.90 at 25°C, and achieved Pm = 0.99 at −78°C while maintaining a TOF of 16.3 h−1.
Sumin Lee, Hooseung Lee, Hyeongwoo Nam, Seungyun Jo, Minseong Kim, Dongwook Kim, Du Yeol Ryu, Sarah Yunmi Lee, Byeong‐Su Kim   +8 more
wiley   +2 more sources

Elevating Haloperoxidase Expression in Escherichia coli through Fusion with a Formate Oxidase

ChemBioChem, Volume 27, Issue 7, 14 April 2026.
Fusing Aspergillus oryzae formate oxidase (AoFOx) to Curvularia inaequalis vanadium chloroperoxidase (CiVCPO) boosts soluble expression and enables formate‐driven, in situ H2O2 supply for halogenation. Screening linker/orientation variants delivered up to 9‐fold higher haloperoxidase activity in E.
Angelique Pothuizen, Jacob M. A. van Hengst, Ron Wever, Peter-Leon Hagedoorn, Frank Hollmann   +4 more
wiley   +1 more source

Enantioselective C-H Activation for the Construction of Chiral Tertiary Fluorides via Migrative Carbofluorination. [PDF]

J Am Chem Soc
Zhang ZY, Ouyang Y, Zhang T, Yu JQ.
europepmc   +1 more source

From Mechanisms to Materials: Oximate Reactivity and Emerging Strategies for Organophosphate Detoxification

ChemPhysChem, Volume 27, Issue 7, 14 April 2026.
The development of effective strategies for the detoxification of organophosphorus (OP) nerve agents has evolved from the early mechanistic studies of François Terrier and collaborators, who first elucidated the exceptional nucleophilicity of α‐effect species such as oximes and hydroxamates, to the modern design of supramolecular and material‐based ...
Pedro Rodríguez‐Dafonte
wiley   +1 more source