Results 171 to 180 of about 114,347 (402)
A process of preparing aromatic polyamide-acids for use as adhesives is described. An equimolar quantity of an aromatic dianhydride is added to a stirred solution of an aromatic diamine in a water or alcohol-miscible ether solvent to obtain a viscous ...
Bell, V. L. +2 more
core +1 more source
“On Water” Photochemistry: Visible‐Light‐Induced Synthesis of Diaryl Sulfides by Nitrogen Extrusion
ChemistryEurope, EarlyView.This study demonstrates an efficient and versatile blue light‐mediated synthesis of dissymmetric diaryl sulfides by nitrogen photoextrusion from diarylazo sulfides. The reaction is carried out “on water” without the need for (photo)catalysts or additives.
Hawraz Ibrahim M. Amin +4 more
wiley +1 more source
Iron-catalyzed fluoroalkylative alkylsulfonylation of alkenes via radical-anion relay
Nature CommunicationsTransition metal-catalyzed reductive difunctionalization of alkenes with alkyl halides is a powerful method for upgrading commodity chemicals into densely functionalized molecules.
Xiaoya Hou, Hongchi Liu, Hanmin Huang
doaj +1 more source
The Microwave Spectrum of Dimethyl Sulfone [PDF]
, 1972 Shuji Saito, Fumio Makino
openalex +1 more source
Aziridination of Olefins by a Copper Phenanthroline Catalyst
ChemistryEurope, EarlyView.A redox‐active Cu(I)‐photocatalyst is evaluated for the aziridination of alkenes. Especially styrenes and electron‐rich 1,3‐dienes are found to be suitable substrates, allowing short reaction times (10 min) at low catalyst loading (1 mol%). The activation of the copper(I) complex by light is compared to the process in the dark. The direct aziridination
Onnicha Khaikate +5 more
wiley +1 more source
Syntheses of Dithiazolyl Sulfone Derivatives. I
, 1950 Masaki Ohta, Kikumasa Satoh
openalex +2 more sources
Rupture du lien C—S lors de la réduction de sulfones par LiAlH4 [PDF]
, 1978 Normand Dufort, Dernard Jodoin
openalex +1 more source
Synthesis of Oligo‐Sulfonimidates by Exponential Growth via Sulfur‐Phenolate Exchange Reactions
ChemistryEurope, EarlyView.A highly flexible iterative exponential growth strategy is used in combination with the sulfur‐phenolate exchange reaction to develop sequence‐defined oligosulfonimidates (16 mer). Combining this with sulfur‐fluorine exchange‐based iterative step growth, a bespoke 20 mer (Mw = 8.5 kDa) can be synthesized.
Yu Han +5 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve +4 more
wiley +1 more source