Results 1 to 10 of about 1,114,638 (302)

Sustainable radical approaches for cross electrophile coupling to synthesize trifluoromethyl- and allyl-substituted tert-alcohols

iScience, 2021
Summary: Trifluoromethylated molecules have gained privileged recognition among the medicinal and pharmaceutical chemists. Sustainable photoredox- and electrochemical processes were employed to facilitate the relatively less explored radical cross ...
Muhammad Awais Ashraf, Yunjeong Lee, Naila Iqbal, Naeem Iqbal, Eun Jin Cho   +4 more
doaj   +1 more source

Development of diverse adjustable axially chiral biphenyl ligands and catalysts

iScience, 2023
Summary: Development of highly efficient and practical chiral ligands and catalysts is an eternal theme in asymmetric synthesis. Here, we report the design, synthesis, and evaluation of a new kind of adjustable axially chiral biphenyl ligands and ...
Jiyang Jie, Haijun Yang, Yufen Zhao, Hua Fu   +3 more
doaj   +1 more source

An Unusual Rearrangement of Pyrazole Nitrene and Coarctate Ring-Opening/Recyclization Cascade: Formal CH–Acetoxylation and Azide/Amine Conversion without External Oxidants and Reductants

Molecules, 2023
We report an unusual transformation where the transient formation of a nitrene moiety initiates a sequence of steps leading to remote oxidative C–H functionalization (R–CH3 to R–CH2OC(O)R’) and the concomitant reduction of the nitrene into an amino group.
Elena Chugunova, Almir S. Gazizov, Daut Islamov, Victoria Matveeva, Alexander Burilov, Nurgali Akylbekov, Alexey Dobrynin, Rakhmetulla Zhapparbergenov, Nurbol Appazov, Beauty K. Chabuka, Kimberley Christopher, Daria I. Tonkoglazova, Igor V. Alabugin   +12 more
doaj   +1 more source

Catalytic Enantiodivergent Michael Addition by Subtle Adjustment of Achiral Amino Moiety of Dipeptide Phosphines

iScience, 2020
Summary: Over the past decades, asymmetric catalysis has been intensely investigated as a powerful tool for the preparation of numerous chiral biologically active compounds.
Huamin Wang, Xiuzheng Li, Youshao Tu, Junliang Zhang   +3 more
doaj   +1 more source

Selective Quadruple C(sp3)-F Functionalization of Polyfluoroalkyl Ketones

iScience, 2020
Summary: The significance of organofluorine compounds has inspired the establishment of numerous methods for the functionalization of rather inert C-F bonds.
Ting Xie, Guo-Qiang Wang, Ya-Wen Wang, Weidong Rao, Haiyan Xu, Shuhua Li, Zhi-Liang Shen, Xue-Qiang Chu   +7 more
doaj   +1 more source

The The perceptions of Senior High School students and teachers about organic chemistry: A Ghanaian perspective

Science Education International, 2021
The purpose of the study was to determine the perceptions that senior high school (SHS) chemistry students and teachers have about organic chemistry as well as to compare organic chemistry topics that are difficult for students and teachers.
Esther Nartey , Ruby Hanson
doaj   +1 more source

Simple green organic chemistry experiments with the kitchen microwave for high school chemistry classrooms

Chemistry Teacher International, 2022
Microwave systems have been used in organic chemistry since the late 1990s for applications including Microwave-Assisted Organic Synthesis (MAOS). The main advantages of microwave-assisted procedures compared to traditional synthesis methods are the 100-
Linkwitz Michael, Zidny Robby, Nida Safwatun, Seeger Lea, Belova Nadja, Eilks Ingo   +5 more
doaj   +1 more source

IMPLICATION OF MINI PROJECT ORGANIC CHEMISTRY EXPERIMENTS FOR IMPROVING ORGANIC CHEMISTRY CONCEPT

EDUSAINS, 2021
IMPLICATION OF MINI PROJECT ORGANIC CHEMISTRY EXPERIMENTS FOR IMPROVING ORGANIC CHEMISTRY CONCEPT Abstract Organic Chemistry Practice is one of the courses in the chemical education department that must be taken by pre-service teacher of chemistry, still
Sri Mulyanti, Atik Rahmawati, Ulfa Lutfianasari   +2 more
doaj   +1 more source

[1,3]/[1,4]-Sulfur atom migration in β-hydroxyalkylphosphine sulfides

Beilstein Journal of Organic Chemistry, 2020
β-Hydroxyalkylphosphine sulfides undergo [1,3]- or [1,4]-sulfur atom phosphorus-to-carbon migration in the presence of Lewis or Brønsted acids. The direction of sulfur atom migration depends on the type of acid used for the reaction. In the presence of a
Katarzyna Włodarczyk, Piotr Borowski, Marek Stankevič   +2 more
doaj   +1 more source

Computational characterization and prediction of metal-organic framework properties [PDF]

, 2015
In this introductory review, we give an overview of the computational chemistry methods commonly used in the field of metal-organic frameworks (MOFs), to describe or predict the structures themselves and characterize their various properties, either at ...
Coudert, François-Xavier, Fuchs, Alain H.   +1 more
core   +1 more source