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Efficient Synthesis of Pyranochromenes by Ethylenediamine Diacetate-Catalyzed Reactions of Substituted Trihydroxybenzenes. Concise Synthesis of Octandrenolone, O-Methyloctandrenolone, Flemiculosin, Laxichalcone, and Racemic Deoxy-Ms-II

등록일
2007년 2월 13일 11시 47분 25초
접수번호
1019
발표코드
29P154포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅳ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
Xin Li, 이용록, 정은미
영남대학교 디스플레이화학공학부,
Pyranochromenes (Pyranobenzopyrans) are one of important classes of heterocycles that have attracted much interest in organic and natural product syntheses. The molecules with pyranochromene moiety are widely found in nature. They have shown a range of biological and pharmacological properties including antioxidant, anticancer, anti-inflammatory, and antiviral activities. Recently, we have developed a new methodology for the preparation of a variety of benzopyrans by ethylenediamine diacetate-catalyzed reactions of substituted resorcinols to enals. While continuing our studies in demonstration of synthetic efficacy of this methodology, we investigated ethylenediamine diacetate-catalyzed double condensation of 1,3,5-trihydroxybenzenes with enals to yield pyranochromenes. By using this methodology, we also describe herein an efficient synthesis of natural products containing pyranochromenes such as octandrenolone, O-methyloctandrenolone, flemiculosin, laxichalcone, racemic deoxy-Ms-II.

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