• 제목/요약/키워드: Hydroxy unsaturated carbonyl compounds

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A Convenient Allylation of 1,n-Dicarbonyl Compounds Using Organoindium Reagents

  • 이필호;동서문;이구연
    • Bulletin of the Korean Chemical Society
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    • 제22권12호
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    • pp.1380-1384
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    • 2001
  • The chemoselective reactions of 1,n-dicarbonyl compounds with allyl halides using indium metal were investigated. $\alpha-Ketoesters$ such as ethyl pyruvate, ethyl 3-methyl-2-oxobutyrate and ethyl benzoylformate reacted with a variety of allyl halides i n the presence of indium to afford hydroxy unsaturated carbonyl compounds in good to excellent yields in MeOH/HCl at $25^{\circ}C.$ For the allyl bromide, the presence of various substituents at the $\alpha$ or $\gamma$ position exhibited little effects on both the reaction rates and yields. Ethyl acetoacetate or ethyl levulinate was treated with allylindium reagent to give hydroxy unsaturated carbonyl compounds in good yield. These results mean that both reactivity and selectivity are independent of the distance between carbonyl groups. 2,3-Butanedione or 1-phenyl-1,2-propanedione reacted with allylindium to produce monoallylation product as major compound.

수소화붕소리튬에 의한 선택환원. 수소화붕소리튬과 대표적 유기화합물과의 반응 (Selective Reduction with Lithium Borohydride. Reaction of Lithium Borohydride with Selected Organic Compounds Containing Representative Functional Groups)

  • 윤능민;차진순
    • 대한화학회지
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    • 제21권2호
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    • pp.108-120
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    • 1977
  • 수소화붕소리튬-테트라히드로푸란용액의 환원특성에 대한 계통적인 연구가 52가지의 대표적인 작용기를 가진 유기화합물을 가지고 표준조건($0^{\circ}$, 테트라히드로 푸란)에서 대략의 반응속도 및 정량 관계를 알아봄으로서 이루어 졌다.

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