Results 121 to 130 of about 5,806 (187)

Synthesis of <i>gem</i>-di(boryl)cyclopropanes from non-activated olefins <i>via</i> Mn-photocatalyzed atom transfer radical addition. [PDF]

Chem Sci
Hu J, Zhang K, Wang J, Huang M, Chen S, Shi Z, Marder TB.   +6 more
europepmc   +1 more source

Overcoming Challenges in Small-Ring Transfer: Direct Decarboxylative Hydroalkylation of Alkenes via Iron-Thiol Catalysis. [PDF]

Angew Chem Int Ed Engl
Giri R, Peng PK, Fernandes AJ, Yu S, West JG, Katayev D.   +5 more
europepmc   +1 more source

Vinyl cyclopropanes as a unifying platform for enantioselective remote difunctionalization of alkenes. [PDF]

Nat Commun
Du X, Lennon ME, Kriticou G, Nevado C.
europepmc   +1 more source

Photogenerated-radical cyclopropylation of <i>in situ</i> generated iminiums mediated by NaI/PPh₃: direct access to α-cyclopropyl tertiary alkylamines. [PDF]

Chem Sci
Zhou Y, Wang S, Liu YC, Liu Y, Tan F, Dong H, Wang J.   +6 more
europepmc   +1 more source

Vicinal Stereocenter Construction via α-Boryl Carbanions from Borylated Cyclopropanes. [PDF]

J Am Chem Soc
Pavlickova T, Orbach N, Kaushansky A, Marek I.   +3 more
europepmc   +1 more source

Pd-Catalyzed C─C Bond Borylation of Biphenylenes Leading to Tri-Ortho-Substituted Biaryls. [PDF]

Chemistry
Presland RV, Luzyanin KV, Wilkinson LA, Jacobs OL, Halcovitch NR, Sergeev AG.   +5 more
europepmc   +1 more source

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

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

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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
openaire   +2 more sources