• 제목/요약/키워드: anti-Aminoalcohol

검색결과 3건 처리시간 0.015초

1, 1'-bi-2-naphthol 환상의 인산에스테르 화합물(化合物)을 이용(利用)한 아미노알코올의 광학분할(光學分割) (Optical resolution of Aminoalcohol with Active Cyclic 1,1'-bi-2-naphthol Phosphoric Acid)

  • 박흥조;이경원
    • 한국응용과학기술학회지
    • /
    • 제7권1호
    • /
    • pp.107-114
    • /
    • 1990
  • Optical resolution of aminoalcohols had been achived efficiently by use of (R)-2,2'-dihydroxy-l,1'-binaphtholphosphoric acid as the resolving agent in various organic solvents. Racemic aminoalcohols were resolved very easily and high enantiomer yield (about 70% e,e) in THF. On the other hand, absolute configuration of resolved aminoalcohol was (R)-configuration but one of the Valinnol and Phhenylglycinol was anti-type because of sterichindrance.Optical resolution of aminoalcohols had been achived efficiently by use of (R)-2,2'-dihydroxy-1,1'-binaphtholphosphoric acid as the resolving agent in various organic solvents. Racemic aminoalcohols were resolved very easily and high enantiomer yield (about 70% e,e) in THF. On the other hand, absolute configuration of resolved aminoalcohol was (R)-configuration but one of the Valinnol and Phhenylglycinol was anti-type because of sterichindrance.

Diastereoselective Synthesis of anti-1,2-Aminoalcohol by Palladium(II) Catalyzed Aza-Claisen Rearrangement

  • Yoon, Youn-Jung;Chan, Myung-Hee;Joo, Jae-Eun;Kim, Yong-Hyun;Oh, Chang-Young;Lee, Kee-Young;Lee, Yiu-Suk;Ham, Won-Hun
    • Archives of Pharmacal Research
    • /
    • 제27권2호
    • /
    • pp.136-142
    • /
    • 2004
  • In this study, a highly diastereoselective synthesis of anti-1 ,2-aminoalcohol was explored starting from L-amino acids as chiral sources. The higher yield and diastereoselectivity was shown when the aza-Claisen rearranqement was performed with allylic trichloroacetimidate 6a in the presence of palldium(II) catalyst.

Diastereoselective Synthesis of 1,6-Diepicastanospermine from D-Glucono-δ-lactone

  • Jang, Ki-Chang;Choi, Sung-Jun;Kim, Jin-Hyo;Lee, Jin-Hwan;Lee, Byong-Won;Park, Ki-Hun
    • Bulletin of the Korean Chemical Society
    • /
    • 제24권7호
    • /
    • pp.921-924
    • /
    • 2003
  • Homochiral (-)-pipecolaldehyde 6 from D-glucono- δ-lactone underwent a highly diastereoselective addition upon treatment with vinylmagnesium bromide. Treatment with vinylmagnesium bromide produced antiaminoalcohol 7a which was easily converted into the synthesis of 1,6-diepicastanospermine 2.