Results 51 to 60 of about 81,584 (205)

Phosphine-Catalyzed Intramolecular Vinylogous Aldol Reaction of Substituted Enones

open access: yes, 2021
We demonstrate the first phosphine-catalyzed intramolecular vinylogous aldol reaction (IVAR) of α-substituted enones. This strategy provides access to various pentannulated (hetero)­arenes and dibenzocycloheptanones incorporated with two contiguous ...
Atanu Mondal   +5 more
core   +1 more source

Phosphine-Catalyzed [3 + 3]-Domino Cycloaddition of Ynones and Azomethine Imines To Construct Functionalized Hydropyridazine Derivatives

open access: yes, 2016
The first phosphine-catalyzed [3 + 3]-domino annulation reaction of ynones and azomethine imines has been developed. With this simple and efficient method, the functionalized hydropyridazine derivatives were obtained in good to excellent yields with ...
You Huang (44838), Ling Liang (84881)
core   +2 more sources

Screening of phosphine resistance in Sitophilus oryzae (L.) (rice weevil) populations in Turkey

open access: yesJulius-Kühn-Archiv, 2018
In this study, the status and prevalence of phosphine resistance in Sitophilus oryzae (L.) (Coleoptera: Curculionidae) populations collected from Mersin and Konya Province in Turkey were investigated by conducting the discrimination concentration tests ...
Tingiş, Ahmet   +4 more
doaj   +1 more source

Phosphine-substituted diiron 1,2-dithiolate complexes as the models for the active site of [FeFe]-hydrogenases

open access: yes, 2019
In this article, five diiron 1,2-dithiolate complexes containing phosphine ligands are reported. Treatment of complex [Fe2(CO)6(μ-SCH2CH2S)] (1) with the phosphine ligands tris(4-methylphenyl)phosphine, tris(4-methoxyphenyl)phosphine, tris(3-chlorophenyl)
Zhong-Qing Jiang (7408745)   +5 more
core   +1 more source

Crystal Structure of Bis(2,4,6-trimethylphenyl)-phosphine Oxide

open access: yesMolbank, 2017
The single crystal structure of bis(2,4,6-trimethylphenyl)phosphine oxide has been determined. All interatomic distances and angles can be considered normal.
Alex J. Veinot   +3 more
doaj   +1 more source

Phosphine-Catalyzed Tandem Annulation of Allenylic Alcohols with 1,1-Dicyanoalkenes

open access: yes, 2023
The phosphine-catalyzed tandem annulation of allenylic alcohols with 1,1-dicyanoalkenes has been developed, giving various bicyclic tetrahydrocyclopentafuran derivatives in 40–89% yields with moderate to excellent diastereoselectivities.
Min Liu   +17 more
core   +1 more source

Biochemical Toxic Response of Phosphine on Human Health Estimated From Enzymatic Variance in Trogoderma granarium

open access: yesDose-Response, 2022
The primary purpose of the current study was to study the possible pernicious effects of phosphine gas on enzyme activity alterations in Trogoderma granarium to determine its harmfulness to human beings after its prolonged exposure and intake. The saline
Asma Naeem   +5 more
doaj   +1 more source

Metal Phosphonates and Phosphinates [PDF]

open access: yesCrystals, 2019
The present Special Issue entitled “Metal phosphonates and phosphinates” aims to collect recent and significant research papers on the fascinating chemistry of these two related families of coordination compounds [...]
Marco Taddei, Ferdinando Costantino
openaire   +3 more sources

Zirconium-Catalyzed Alkene Hydrophosphination and Dehydrocoupling with an Air-Stable, Fluorescent Primary Phosphine

open access: yesInorganics, 2016
Zirconium-catalyzed alkene hydrophosphination and dehydrocoupling with an air-stable, fluorescent primary phosphine 8-[(4-phosphino)phenyl]-4,4-dimethyl-1,3,5,7-tetramethyl-2,6-diethyl-4-bora-3a,4a-diaza-s-indacene furnishes fluorescent phosphine ...
Christine A. Bange   +7 more
doaj   +1 more source

The functionalisation of wool by tris(hydroxymethyl)phosphine for metal ion recovery

open access: yes, 2009
Tris(hydroxymethyl)phosphine (THP) was prepared by the addition of a stoichiometric amount of base to tetrakis(hydroxymethyl)phosphonium chloride (THPC).
Addison, Simon James
core  

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