131667-57-7Relevant articles and documents
A facile synthesis of cyclic enecarbamates using Dess-Martin periodinane
Yu, Chengzhi,Hu, Longqin
, p. 5167 - 5170 (2001)
A simple and efficient synthesis of cyclic enecarbamates from ω-hydroxycarbamates via tandem oxidative cyclization-dehydration was achieved in 84% to quantitative yield using Dess-Martin periodinane in methylene chloride.
Backbone-Modified C2-Symmetrical Chiral Bisphosphine TMS-QuinoxP*: Asymmetric Borylation of Racemic Allyl Electrophiles
Imamoto, Tsuneo,Ito, Hajime,Iwamoto, Hiroaki,Ozawa, Yu,Takenouchi, Yuta
supporting information, p. 6413 - 6422 (2021/05/31)
A new C2-symmetrical P-chirogenic bisphosphine ligand with silyl substituents on the ligand backbone, (R,R)-5,8-TMS-QuinoxP*, has been developed. This ligand showed higher reactivity and enantioselectivity for the direct enantioconvergent borylation of cy
Merging Halogen-Atom Transfer (XAT) and Cobalt Catalysis to Override E2-Selectivity in the Elimination of Alkyl Halides: A Mild Route towardcontra-Thermodynamic Olefins
Zhao, Huaibo,McMillan, Alastair J.,Constantin, Timothée,Mykura, Rory C.,Juliá, Fabio,Leonori, Daniele
supporting information, p. 14806 - 14813 (2021/09/18)
We report here a mechanistically distinct tactic to carry E2-type eliminations on alkyl halides. This strategy exploits the interplay of α-aminoalkyl radical-mediated halogen-atom transfer (XAT) with desaturative cobalt catalysis. The methodology is high-yielding, tolerates many functionalities, and was used to access industrially relevant materials. In contrast to thermal E2 eliminations where unsymmetrical substrates give regioisomeric mixtures, this approach enables, by fine-tuning of the electronic and steric properties of the cobalt catalyst, to obtain high olefin positional selectivity. This unprecedented mechanistic feature has allowed access tocontra-thermodynamic olefins, elusive by E2 eliminations.
?-C(sp2)-H alkylation of enamides using xanthate chemistry
Bertho, Sylvain,Dondasse, Isma?l,Retailleau, Pascal,Nicolas, Cyril,Gillaizeau, Isabelle
supporting information, p. 7129 - 7141 (2020/05/16)
Access to the ?-amino-?,?-unsaturated acyl scaffold was established by applying xanthate chemistry to enamides. This original ?-C(sp2)-H alkylation is regioselective and exhibits broad substrate scope and good functional group tolerance. The la