Radical Alkylphosphanylation of Olefins with Stannylated or Silylated Phosphanes and Alkyl Iodides
作者:Marie-Céline Lamas、Armido Studer
DOI:10.1021/ol200483p
日期:2011.5.6
Intermolecularconjugateradicaladdition reactions of secondary and tertiary alkyl radicals derived from the corresponding alkyl iodides to activated olefins such as α,β-unsaturated esters, amides, imides, nitriles, and sulfones are described. The adduct radicals are trapped by either diphenyl(trimethylstannyl)phosphane or the commercially available diphenyl(trimethylsilyl)phosphane as chain transfer
Phase-Transfer-Catalyzed Asymmetric Synthesis of Axially Chiral Anilides
作者:Kun Liu、Xiangfei Wu、S. B. Jennifer Kan、Seiji Shirakawa、Keiji Maruoka
DOI:10.1002/asia.201301036
日期:2013.12
Catalytic asymmetricsynthesis of axiallychiral o‐iodoanilides and o‐tert‐butylanilides as useful chiral building blocks was achieved by means of binaphthyl‐modified chiral quaternary ammonium‐salt‐catalyzed N‐alkylations under phase‐transfer conditions. The synthetic utility of axiallychiral products was demonstrated in various transformations. For example, axiallychiral N‐allyl‐o‐iodoanilide was
Enantioselective N-Heterocyclic Carbene-Catalyzed Kinetic Resolution of Anilides
作者:Jianbo Bie、Ming Lang、Jian Wang
DOI:10.1021/acs.orglett.8b02538
日期:2018.9.21
The N-heterocyclic carbene (NHC)-catalyzed enantioselectivekineticresolution of anilides (a kind of hemiaminals) is reported. Upon exposure to the reaction in the presence of an NHC precatalyst and base, catalytic C–O bond formation occurs, providing axially chiral isoindolinones in high yields with excellent enantioselectivities.
Organosilicon and organotin phosphines and arsines as mono- and poly-dentate ligands to metal carbonyls
作者:E. W. Abel、J. P. Crow、S. M. Illingworth
DOI:10.1039/j19690001631
日期:——
The organometallic phosphines and arsines Me3SnPPh2, Me2Sn(PPh2)2, Me3SiAsMe2, Me2Si(AsMe2)2, MeSi(AsMe2)3, Me3SnAsMe2, and Me2Sn(AsMe2)2 react with nickel, chromium, and molybdenum carbonyls, behaving as mono-, bi-, and tri-dentateligands as appropriate. The i.r. and 1H n.m.r. spectra of the products are reported and discussed.