Results 131 to 140 of about 112,449 (386)

The cyclopropylcarbinyl route to γ-silyl carbocations

open access: yesBeilstein Journal of Organic Chemistry, 2019
The mesylate derivative of cis-1-hydroxymethyl-2-trimethylsilylcyclopropane has been prepared, along with a number of related mesylates and triflates with substituents on the 1-position.
Xavier Creary
doaj   +1 more source

A Novel Method for Synthesis of Substituted Naphthofurans and Naphthopyrans [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1997
Substituted naphthofurans and naphthopyrans were constructed at high temperature from allyl or propargyl naphthyl ethers via Claisen rearrangement in moderate to good yields.
Mohammad Reza Saidi   +3 more
doaj  

Isolation and characterization of glucosylsphingosine from Gaucher's spleen

open access: yesJournal of Lipid Research, 1974
Glucosylsphingosine has been isolated for the first time as a natural constituent from Gaucher's spleen. On thinlayer chromatography, it migrates with authentic glucosylsphingosine, yielding a positive color reaction with ninhydrin for the amino group ...
Srinivasa S. Raghavan   +2 more
doaj  

Generation of Sulfonylated Tetrazoles through an Iron-Catalyzed Multicomponent Reaction Involving Sulfur Dioxide

open access: yesiScience, 2020
Summary: As a privileged motif, tetrazoles can be widely found in pharmaceuticals and materials science. Herein, a five-component reaction of cycloketone oxime esters, alkynes, DABCO·(SO2)2, and two molecules of trimethylsilyl azide under iron catalysis ...
Jun Zhang   +3 more
doaj  

Heat resistant polymers of oxidized styrylphosphine [PDF]

open access: yes, 1978
Homopolymers, copolymers and terpolymers of a styrene based monomer are prepared by polymerizing at least one oxidized styrylphosphine monomer or by polymerizing p-diphenylphosphinestyrene and then oxidizing the polymerized monomer with an organoazide ...
Paciorek, K. J. L.
core   +1 more source

Study of localization in the quantum sawtooth map emulated on a quantum information processor

open access: yes, 2006
Quantum computers will be unique tools for understanding complex quantum systems. We report an experimental implementation of a sensitive, quantum coherence-dependent localization phenomenon on a quantum information processor (QIP).
David G. Cory   +7 more
core   +1 more source

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