Results 241 to 250 of about 19,882 (280)

Enantioselective dearomative formal (3+3) cycloadditions of bicyclobutanes with aromatic azomethine imines: access to fused 2,3-diazabicyclo[3.1.1]heptanes. [PDF]

Chem Sci
Yang XC, Wu F, Wu WB, Zhang X, Feng JJ.
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Organocatalytic Asymmetric Synthesis of Azabicyclo[2.1.1]hexanes. [PDF]

ACS Catal
Alama L, Frank N, Brücher L, Nienhaus J, List B.   +4 more
europepmc   +1 more source

Silver-catalyzed direct conversion of epoxides into cyclopropanes using N-triftosylhydrazones. [PDF]

Nat Commun
Li L, Sivaguru P, Wei D, Liu M, Zhu Q, Dong S, Casali E, Li N, Zanoni G, Bi X.   +9 more
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Recent advances in catalytic asymmetric alkenyl C(sp²)-H bond functionalizations. [PDF]

Chem Sci
Si XJ, Wang TC, Loh TP, Lu MZ.
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High-Valent Copper Catalysis Enables Regioselective Fluoroarylation of Gem-Difluorinated Cyclopropanes. [PDF]

Adv Sci (Weinh)
Wu X, Song X, Xia Y.
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Transition-metal-free regioselective synthesis of spiro-oxazolidines through [3 + 2] annulation reactions of azadienes with haloalcohols. [PDF]

RSC Adv
Savekar AT, Vitnor SM, Karande VB, Waghmode SB.   +3 more
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Terminal Cyclopropylsilyl Alcohols as Useful Key Units to Access 2,3,4,6-Tetrasubstituted Tetrahydropyran Scaffolds by Stereocontrolled Prins Cyclization. [PDF]

Org Lett
Peña LF, Barbero A.
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“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
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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 ...
Olivier Lebel, Alexandre Langlois
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