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Chiral enamines derived from 2-(2'-pyrido)acetophenone and 2-(2'-quinolino)acetophenone as ligands in copper(I) catalyzed enantioselective cyclopropanations


Kirin, Srećko I.; Vinković, Vladimir; Šunjić, Vitomir
Chiral enamines derived from 2-(2'-pyrido)acetophenone and 2-(2'-quinolino)acetophenone as ligands in copper(I) catalyzed enantioselective cyclopropanations // Chirality, 7 (1995), 3; 115-120 (međunarodna recenzija, članak, znanstveni)


Naslov
Chiral enamines derived from 2-(2'-pyrido)acetophenone and 2-(2'-quinolino)acetophenone as ligands in copper(I) catalyzed enantioselective cyclopropanations

Autori
Kirin, Srećko I. ; Vinković, Vladimir ; Šunjić, Vitomir

Izvornik
Chirality (0899-0042) 7 (1995), 3; 115-120

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Chiral 1; 5-bisnitrogen ligands; Homogeneous asymmetric cyclopropanation; Copper(I) complexes; Enantioselectivity; Chiral gas chromatography

Sažetak
Optically active enamines of 2-(2-pyrido)acetophenone or 2-(2-quinolino)acetophenone with (R)-1-phenylethylamine, (R)-1-(1-naphthyl)ethylamine, (R)-cyclohexylethylamine, and (R)-phenylglycinol were prepared and their copper(I) complexes used in the enantioselective cyclopropanation of styrene with ethyl- and menthyldiazoacetate. Enantioselectivities of up to 42% enantiomeric excess were obtained for cis/trans 2-phenylcyclopropan-1-carboxylic acid ethyl esters, as determined by gas-liquid chromatography (GLC) on chiral chromatographic columns.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE