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Volumn 4, Issue 8, 2012, Pages 1115-1121

Electrogenerated Polymers as Efficient and Robust Heterogeneous Catalysts for the Hydrolytic Kinetic Resolution of Terminal Epoxides

Author keywords

Asymmetric catalysis; Electrochemistry; Epoxides; Heterogeneous catalysis; Kinetic resolution

Indexed keywords

ASYMMETRIC CATALYSIS; DIRECT OXIDATION; ENANTIOSELECTIVE; EPOXIDES; HETEROGENEOUS CATALYST; HOMOGENEOUS CATALYST; HYDROLYTIC KINETIC RESOLUTION; KINETIC RESOLUTION; POLYMERIZATION CONDITIONS; RECOVERY PROCEDURE; TERMINAL EPOXIDE;

EID: 84864373263     PISSN: 18673880     EISSN: 18673899     Source Type: Journal    
DOI: 10.1002/cctc.201200085     Document Type: Article
Times cited : (15)

References (41)
  • 30
    • 84864374081 scopus 로고    scopus 로고
    • For experimental details, see the Supporting Information.
    • For experimental details, see the Supporting Information.
  • 33
    • 84864374083 scopus 로고    scopus 로고
    • In reference[9], the existence of a monometallic mechanism was also suggested in some HKR transformations under specific conditions (for instance, with oligomeric catalysts in dilute conditions).
    • In reference[9], the existence of a monometallic mechanism was also suggested in some HKR transformations under specific conditions (for instance, with oligomeric catalysts in dilute conditions).
  • 35
    • 84864372738 scopus 로고    scopus 로고
    • III-OH sites during the polymerization.
    • III-OH sites during the polymerization.
  • 39
    • 84864342211 scopus 로고    scopus 로고
    • Note
    • A control experiment was performed to check if catalyst-leaching occurred during the recycling procedure. After 5h in the dynamic HKR of epibromohydrin, an aliquot was removed to check the conversion (30%). The mixture was diluted with THF and stirred for an additional 12h to reach 42% conversion (and 80%ee). The polymer was then removed by filtration and the recovered filtrate was stirred for a further 24h. No further modification in the composition of the solution was detected, thus confirming that the catalyst had been entirely suppressed.
  • 40
    • 84864374080 scopus 로고    scopus 로고
    • Note
    • The cobalt content of polymer 5 before and after 11cycles were 6.04% and 6.26%, respectively, as determined by elemental analysis. The slight increase in cobalt content might have originated from the hydrolysis of the Co-OAc units during the reaction or elimination of impurities from the original polymer.
  • 41
    • 84864342213 scopus 로고    scopus 로고
    • Note
    • The Co/F ratio was determined by elemental analysis in the fresh polymer and after reuse (after the 11th and 12thcycles) to be 1:0.64, 1:0.67, and 1:0.60.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.