Results 31 to 40 of about 581 (185)

Preparation and Spectral Properties of Substituted Heterocyclobutan-3-Ones [PDF]

open access: yes, 1981
In the past decade some new interpretations of orbital interactions in small rings have resulted from the observations of valence shell ionization potentials. These ionization potentials were obtained from a technique known as photoelectron spectroscopy,
Nickias, Peter
core   +1 more source

Design of peptide-containing N5-unmodified neutral flavins that catalyze aerobic oxygenations [PDF]

open access: yes, 2020
Simulation of the monooxygenation function of flavoenzyme (Fl-Enz) has been long-studied with N5-modified cationic flavins (FlEt+), but never with N5-unmodified neutral flavins (Fl) despite the fact that Fl is genuinely equal to the active center of Fl ...
Arakawa, Yukihiro   +7 more
core  

Synergistic attraction: Development and field evaluation of a multicomponent lure for Zeugodacus cucurbitae based on host‐plant volatiles and gut bacterium‐derived volatiles

open access: yesPest Management Science, EarlyView.
The newly developed ternary blend was validated in field trials and proved highly effective in attracting both male and female Zeugodacus cucurbitae. Abstract BACKGROUND Zeugodacus cucurbitae is a global quarantine pest. Management of this pest relies heavily on chemical insecticides, which impose substantial environmental burdens. Male‐specific lures [
Jinhua Li   +8 more
wiley   +1 more source

Catalytic Asymmetric Synthesis of Butenolides and Butyrolactones [PDF]

open access: yes, 2017
γ-Butenolides, γ-butyrolactones, and derivatives, especially in enantiomerically pure form, constitute the structural core of numerous natural products which display an impressive range of biological activities which are important for the development of ...
Ben L. Feringa   +5 more
core   +3 more sources

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros   +5 more
wiley   +1 more source

窒素カチオンへの隣接基関与に基づくヘテロ環生成反応 [PDF]

open access: yes, 2018
学位の種別: 課程博士審査委員会委員 : (主査)東京大学教授 大和田 智彦, 東京大学教授 井上 将行, 東京大学教授 金井 求, 東京大学教授 阿部 郁朗, 東京大学講師 宮本 和範University of Tokyo ...
Ning Yingtang, 寧 桜唐
core   +1 more source

Nicotine pouches and clinical outcomes related to smoking cessation: A systematic review of randomized trials

open access: yesAddiction, EarlyView.
Abstract Background and aims Tobacco‐free nicotine pouches (NPs) are oral nicotine products promoted by manufacturers and some researchers as tools that may reduce nicotine cravings and support smoking reduction or cessation. However, evidence regarding their actual clinical impact remains limited.
Javad Heshmati   +6 more
wiley   +1 more source

The cycloaddition of ketenes and silyl enol ethers [PDF]

open access: yes, 1979
The (2+2) cycloaddition of ketenes and trimethylsilyl enol ethers was found to proceed in good yield to give trimethylsiloxycyclobutanones of unique and interesting regiochemistry and stereochemistry.
Lloyd, Robert Michael
core  

Fibril Synthesis From Food Processing By‐Products and Strategies for Structure–Function Stabilization for Food Applications

open access: yesSustainable Food Proteins, Volume 4, Issue 2, June 2026.
Protein fibrils can be synthesized from both conventional and by‐product protein sources, each having distinct advantages. Stabilization through polysaccharides and polyphenols can enhance fibril functional properties, such as gelling, foaming, and emulsification, thus furthering their application in food and non‐food materials.
Sanjana Sawant, Audrey L. Girard
wiley   +1 more source

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