Development of a recyclable fluorous chiral phase-transfer catalyst: Application to the catalytic asymmetric synthesis of α-amino acids

Organic Letters

Volumn 6, Issue 9, 2004, Pages 1429-1431

  Shirakawa, Seiji ^a   Tanaka, Youhei ^a   Maruoka, Keiji ^a  

^a KYOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

AMINO ACID DERIVATIVE; FLUORINE DERIVATIVE; SOLVENT;

ALKYLATION; ARTICLE; CATALYSIS; CATALYST; CHIRALITY; PHASE TRANSITION; SYNTHESIS;

AMINO ACIDS; CATALYSIS; CYCLIZATION; HYDROCARBONS, FLUORINATED; MOLECULAR STRUCTURE; STEREOISOMERISM;

EID: 2442589733     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol049724w     Document Type: Article

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60. 2O, and perfluoro solvents and less soluble in toluene, benzene, hexane, etc.
61. The reaction in the toluene/50% aqueous KOH/FC-72 (as catalyst phase) triphase system caused a slight decrease of the enantioselectivity in the asymmetric alkylation of 2.
62. FC-72 = perfluorohexanes.
63. In each run, >95% of the catalyst 1 was recovered by the fluorous extraction.