Results 141 to 150 of about 9,914 (265)

Arylhydrazines: Convenient Homogeneous Reductants for Scalable Cross-Coupling. [PDF]

open access: yesAngew Chem Int Ed Engl
Kurig N   +5 more
europepmc   +1 more source

The N-H stretching frequency of substituted hydrazines

open access: yes, 1965
Thesis (M.A.)--Boston UniversityPLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request.
Saeed, Muhammad Ghaleb
core  

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

open access: yesThe Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá   +4 more
wiley   +1 more source

One-Pot Method to Access 1,3,4-Oxadiazol-2(3<i>H</i>)-ones Using Carbonyldiimidazole. [PDF]

open access: yesJ Org Chem
Islam R   +6 more
europepmc   +1 more source

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra   +2 more
wiley   +1 more source

HYDRAZINES. [PDF]

open access: yesChemical & Engineering News Archive, 1979
openaire   +1 more source

Application of electrostatic and multi‐layer embedding in Hirshfeld atom refinements: a cost‐effective approach for approximating bulk effects in crystalline environments

open access: yesJournal of Applied Crystallography, EarlyView.
A new efficient embedding mechanism for molecule‐in‐a‐crystal electron‐density calculations during Hirshfeld atom refinement is made available in NoSpherA2 and benchmarked.One of the main advantages of Hirshfeld atom refinement (HAR), besides improved refinement statistics and reduced uncertainties of all derived parameters, is the possibility of ...
Bruno Landeros-Rivera, Florian Kleemiss
wiley   +1 more source

Synthesis and Reactions of Hydrazine Trifluoroborate Salts. [PDF]

open access: yesOrg Lett
Ballerini L   +4 more
europepmc   +1 more source

Advances in organic UV filters for sunscreens over the past decade

open access: yesPhotochemistry and Photobiology, EarlyView.
Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon   +4 more
wiley   +1 more source

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