Results 171 to 180 of about 9,019 (233)

Sulfur-Mediated Ring-Opening Cyclization of Spirocyclopropanes for the Construction of Benzo[b]thiophene Skeleton. [PDF]

Chem Asian J
Nambu H, Seto Y, Onuki Y, Yamazaki K, Tomohara K, Yakura T.   +5 more
europepmc   +1 more source

Photocatalytic construction of <i>N</i>-acyl-<i>N</i>,<i>O</i>-acetal-linked pyridines <i>via</i> aminocyclopropane ring opening. [PDF]

Chem Sci
Kim D, Yang E, Cho Y, Hong S.
europepmc   +1 more source

Cu-Bpin-mediated dimerization of 4,4-dichloro-2-butenoic acid derivatives enables the synthesis of densely functionalized cyclopropanes. [PDF]

Beilstein J Org Chem
Gómez-Roibás P, Chaves-Pouso A, Fañanás-Mastral M.   +2 more
europepmc   +1 more source

Divergent and Enantioselective Synthesis of Three Types of Chiral Polycyclic N‑Heterocycles via Copper-Catalyzed Dearomative Cyclization. [PDF]

ACS Cent Sci
Luo WF, Liu LG, Zheng YX, Sun M, Lu X, Zhou B, Ye LW, Li L.   +7 more
europepmc   +1 more source

Towards <i>trans</i>-dual deuterated cyclopropanes <i>via</i> photoredox synergistic deuteration with D₂O. [PDF]

Chem Sci
Wu Y, Peng C, Zhan Q, Lou X, Liu S, Lin X, Han Y, Cao P, Cao T.   +8 more
europepmc   +1 more source

Strain-Release Induced 1,2-Metallate Rearrangement of Geminal Diborons: Multicomponent 1,5-Difunctionalization via Ring-Opening Coupling. [PDF]

Angew Chem Int Ed Engl
Gangani AJ, Vyas H, Mini A, Pathak D, Marian D, Sharma A.   +5 more
europepmc   +1 more source

Unlocking nucleophilic reactivity in Co-MHAT catalysis: Stereospecific backside-backside displacement by anion-activated organocobalt. [PDF]

Sci Adv
Zhao BS, Yin YN, Zhu R.
europepmc   +1 more source

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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 ...
Alexandre Langlois, Olivier Lebel
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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