Results 171 to 180 of about 41,267 (287)

Asymmetric Synthesis of Tertiary α‐Aryl Stereocentres in Tetrahydro‐4H‐pyran‐4‐ones Using Pd‐Catalyzed Decarboxylative Asymmetric Protonation

European Journal of Organic Chemistry, EarlyView.
The Pd‐catalyzed decarboxylative asymmetric protonation (DAP) has been developed for sterically hindered tetrahydro‐4H‐pyran‐4‐one derived α‐aryl‐β‐keto esters. A substrate scope of nine examples of DAP showed that substrates containing a di‐ortho methoxy substitution pattern on the aryl ring gave rise to the highest enantioselectivities of up to 85 ...
Fionn McNeill, Joffrey Scriven, Fritz Bahns, Anugam V. Krishna, Julia Bruno‐Colmenarez, Patrick J. Guiry   +5 more
wiley   +1 more source

Thermodynamic Insights on the Structure-Property Relationships in Substituted Benzenes: Are the Pairwise Interactions in Tri-Substituted Methyl-Nitro-Benzoic Acids Still Valid? [PDF]

Chempluschem
Silva Ferraz JM, Emel'yanenko VN, Zaitsau DH, Samarov AA, Brunetti B, Ciccioli A, Vecchio Ciprioti S, Verevkin SP.   +7 more
europepmc   +1 more source

Rapid Synthesis of Weinreb Amides via Titanium‐Mediated Direct Amidation at Room Temperature

European Journal of Organic Chemistry, EarlyView.
Rapid titanium‐mediated direct amidation enables the room‐temperature synthesis of Weinreb amides directly from carboxylic acids under mild conditions. The operationally simple protocol delivers a broad substrate scope in good to excellent yields, including challenging fluorinated substrates, without the need for conventional coupling reagents ...
Aman G. Singh, Henry J. Hamann, P. Veeraraghavan Ramachandran   +2 more
wiley   +1 more source

Aerobic oxidation of alkylarenes and polystyrene waste to benzoic acids via a copper-based catalyst. [PDF]

Chem Sci
Xu E, Liu T, Xie F, He J, Zhang Y.
europepmc   +1 more source

Triggered Calcium Lightning Programs Cochlear Development

Exploration, EarlyView.
Summary: Before the onset of hearing, the developing inner ear generates spontaneous calcium signals that are thought to guide maturation. In this study, we discovered a rapid and widespread calcium flash—dubbed “Ca2+ lightning”—originating from supporting cells beneath the sensory hair cells, which triggers coordinated calcium waves across the entire ...
Qiang Ma, Hai‐Peng Wang, Yu‐Meng Jiang, Ke Lai, Ming‐Xian Li, Zhen Zhang, Li‐Na Gong, Jing‐Wei Lai, Kai‐Ming Su, Lu‐Yang Wang, Hui Wang, Shan‐Kai Yin, Hao He, Hai‐Bo Shi   +13 more
wiley   +1 more source

Protocol for the preparation and application of CeO₂-CuO catalysts in the decarboxylative oxidation reaction of benzoic acids to phenols. [PDF]

STAR Protoc
Du X, Liu Y, Shen X.
europepmc   +1 more source

Phosphine-Free Ru-Catalyzed Regio- and Stereoselective Addition of Benzoic Acids to Trifluoromethylated Alkynes toward Facile Access to Trifluoromethyl Group-Substituted (E)-Enol Esters. [PDF]

ACS Omega, 2020
Liu G, Zhang X, Kuang G, Lu N, Fu Y, Peng Y, Xiao Q, Zhou Y.   +7 more
europepmc   +1 more source

Comprehensive Review on Advancements in Food Preservation Technologies for Quality and Sustainability

Food Chemistry International, EarlyView.
Preservatives limit microbial development, oxidation, and enzymatic degradation, resulting in better food quality and extended shelf life. Classified as natural, synthetic, or biological, each preservative has distinctive attributes and modes of action. Growing preference for natural preservatives aligns with clean label trends.
Monica Suresh, Arun Meyyazhagan, Haripriya Kuchi Bhotla, Manikantan Pappuswamy, Balamuralikrishnan Balasubramanian   +4 more
wiley   +1 more source

Chlorobenzene-driven palladium-catalysed lactonisation of benzoic acids. [PDF]

RSC Adv
Abe M, Mizukami A, Yoshida E, Kimachi T, Inamoto K.   +4 more
europepmc   +1 more source

Hole transporting materials in inverted flexible perovskite solar cells: Challenges, progress, and perspectives

FlexMat, EarlyView.
The buried interface is a critical determinant of efficiency and stability in inverted flexible perovskite solar cells (IFPSCs). This Perspective summarizes advances in hole transporting materials for IFPSCs, including polymeric, small‐molecule, inorganic, and hybrid systems, and discusses the prospects and feasibility of emerging molecular design and ...
Xianglang Sun, Jiawei Leng, Zhong'an Li
wiley   +1 more source