Asymmetric induction in oxygenation of styrene catalyzed by cobalt schiff base complex

Nishinaga, Akira; Yamato, Hitoshi; Abe, Toshio; Maruyama, K.; Matsuura, Teruo

doi:10.1016/s0040-4039(00)82333-3

Cited by 55 publications

(19 citation statements)

References 12 publications

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“…This radical process was supported by radical trap experiments, reaction monitoring by EPR, and stochiometric EPR experimentation that established the initial activation process, as well as strong literature support for the latter steps in the process [77][78][79][80]. Accepted ManuscriptThis article is protected by copyright.…”

mentioning

confidence: 69%

Fluorine-Retentive Strategies for the Functionalization of gem-Difluoroalkenes

Sorrentino

Altman

2021

Synthesis

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gem-Difluoroalkenes are readily available fluorinated building blocks, and the fluorine-induced electronic perturbations of the alkenes enables a wide array of selective functionalization reactions. However, many reactions of gem-difluoroalkenes result in a net C–F functionalization to generate monofluorovinyl products or addition of F to generate trifluoromethyl-containing products. In contrast, fluorine-retentive strategies for the functionalization of gem-difluoroalkenes remain less generally developed, and is now becoming a rapidly developing area. This review will present the development of fluorine-retentive strategies including electrophilic, nucleophilic, radical, and transition metal catalytic strategies with an emphasis on key physical organic and mechanistic aspects that enable reactivities.

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mentioning

confidence: 69%

Fluorine-Retentive Strategies for the Functionalization of gem-Difluoroalkenes

Sorrentino

Altman

2021

Synthesis

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“…For related literature see: Chen et al (1995); Dang et al (1971); Grubbs et al (1977); Horner et al (1968); Miyashita et al (1980); Nishinaga et al (1988); Pertici et al (1996); Rosini et al (1992); Suda et al (1983); Spassky et al (1996); Suga et al (2003). Mo K radiation = 0.08 mm À1 T = 293 (2) K 0.23 Â 0.15 Â 0.12 mm…”

Section: Related Literaturementioning

confidence: 99%

“…Axially chiral ligands were first reported in a hydrogenation reaction in 1977 and have gained ground ever since (Grubbs et al, 1977).In addition to the biaryl backbone bisphosphanes (2,2′-bis (diphenylphosphino)-1,1′-binaphthyl) (Miyashita et al, 1980), derivatives of the corresponding diamines (biphenyldiamine and binaphthyldiamine) have performed successfully in many asymmetric catalytic reactions (Rosini et al, 1992). These include stereoselective polymerizations of methacrylate (Suda et al, 1983) and lactate (Spassky et al, 1996) and numerous enantioselective modifications of olefins such as epoxidation (Nishinaga et al, 1988), aziridination (Suga et al, 2003), cyclopropanation (Chen et al, 1995) and hydrogenation (Pertici et al, 1996). With a structurally rigid binaphthyl ligand backbone, the configuration of the ligand is fixed and its axial chirality can efficiently be transmitted to the active site catalyst.…”

Section: Nn′-bis(2-furylmethylene)-11′-binaphthyl-22′-diaminementioning

confidence: 99%

N,N′-Bis(2-furylmethylene)-1,1′-binaphthyl-2,2′-diamine

Elmkacher

Rzaigui²,

Bouachir

2007

Acta Cryst E

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“…This latter complex exhibited the highest enantiomeric excesses, up to 38%. 37 Katsuki substituents in ortho position of the -OH function. [38][39][40][41] These manganese complexes (Scheme 3), bearing four chiral centers, have been used for the epoxidation of non-functionalized olefins, with iodosylbenzene as oxidant.…”

Section: First Enantioselective Oxidations Catalyzed By Chiral Schiffmentioning

confidence: 99%