Results 131 to 140 of about 11,151 (188)

“Cyclopropanation of Cyclopropanes”: GaCl₃-Mediated Ionic Cyclopropanation of Donor–Acceptor Cyclopropanes with Diazo Esters as a Route to Tetrasubstituted Activated Cyclopropanes

The Journal of Organic Chemistry, 2021
A new ionic cyclopropanation process involving the addition of diazo esters to donor-acceptor cyclopropanes (DAC) activated by GaCl3 has been developed. The reactions occur via 1,2-zwitterionic gallium complexes with elimination of nitrogen in all cases to give 1,1,2,3-tetrasubstituted cyclopropanes as the main products.
Irina A. Borisova, Daria-Maria V. Ratova, Konstantin V. Potapov, Anna V. Tarasova, Roman A. Novikov, Yury V. Tomilov   +5 more
openaire   +2 more sources

To Cyclopropanate or Not To Cyclopropanate? A Look at the Effect of Cyclopropanation on the Performance of Biofuels

Energy & Fuels, 2010
The cyclopropanated derivatives of three diesel-compatible biofuels—limonene, turpentine, and canola oil methyl ester—were prepared. Their heats of combustion were both calculated using theoretical methods and measured experimentally, and it was found that for all three compounds the specific energy (in kJ/g) was similar to that of the starting ...
Alexandre Langlois, Olivier Lebel
openaire   +1 more source

Thebaine Cyclopropanation.

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
E. E. Schultz, M. M. Shakirov, I. Yu. Bagryanskaya, Yu. V. Gatilov, G. A. Tolstikov, V. N. Kalinin, H. Schmidhammer   +6 more
openaire   +1 more source

The Protonation of Gaseous Cyclopropane

Chemistry - A European Journal, 2001
The protonation of cyclopropane by gaseous Brønsted acids of varying strength in radiolytic experiments at atmospheric pressure leads to two distinct C3H7- isomers that have been sampled by their reaction with benzene. The neutral end products, nC3H7-C6H5 and iC3H7-C6H5, arise from the electrophilic aromatic substitution reaction with the cC3H7+ and ...
CHIAVARINO, Barbara, CRESTONI, Maria Elisa, Andrey A. Fokin, FORNARINI, Simonetta   +3 more
openaire   +3 more sources

CYCLOPROPANE

Medical Journal of Australia, 1942
M, BURNELL, R H, ORTON
openaire   +3 more sources

Cyclopropan

AINS - Anästhesiologie · Intensivmedizin · Notfallmedizin · Schmerztherapie, 1995
H, Böhrer, M, Goerig
openaire   +2 more sources

Cyclopropanation

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

An experimental and kinetic study of the ignition delay characteristics of cyclopropane in air

Fuel, 2022
Xiang-Yuan Li
exaly  

Identification of Cyclopropane Formation in the Biosyntheses of Hormaomycins and Belactosins: Sequential Nitration and Cyclopropanation by Metalloenzymes

Angewandte Chemie - International Edition, 2022
Wei-Chen Chang, Yasushi Ogasawara, Tohru Dairi   +2 more
exaly  

A comparative study on the autoignition characteristics of cyclopropane and propane at high temperatures

Combustion and Flame, 2022
Xiaoyang Lei, Jingbo Wang, Xiang-Yuan Li   +2 more
exaly