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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Metal-Free Iodine-Catalyzed Oxidation of Ynamides and Diaryl Acetylenes into 1,2-Diketo Compounds

등록일
2018년 8월 30일 17시 52분 33초
접수번호
2152
발표코드
ORGN.P-276 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Organic Chemistry
저자 및
공동저자
Tae-woong Um, Seunghoon Shin*
Department of Chemistry, Hanyang University, Korea

Molecular iodine has been widely used in organic synthesis, due to its easy handling and inexpensive price. Besides the stoichiometric iodofunctionalizations that incorporate iodine atom in the product, various of iodine-based catalysis have been developed, including dehydration, condensation, conjugate addition, esterification, acetalization and glycosylation. Some of these processes are suspected to be mediated by HI generated in-situ from the hydrolysis of I2, and few reports propose a I-I regeneration for a catalyst turnover, due to the unfavorable enthalpy. Herein, we demonstrate that molecular iodine can catalyze selective oxidation of ynamide into ketoamide compounds. Ynamides as well as diaryl acetylenes are appropriate substrates for this transformation.


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