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  • 08월 28일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Palladium or nickel-catalyzed carbon-carbon bond formation reactions

등록일
2008년 8월 19일 15시 46분 04초
접수번호
1561
발표코드
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발표시간
목 14시 : 50분
발표형식
심포지엄
발표분야
유기화학 - Diversity in Organic Chemistry (Organic Synthesis and Synthetic Method)
저자 및
공동저자
이선우
전남대학교 화학과, Korea
Palladium catalyzed carbon-carbon bond formation reactions have been widely used in organic synthesis. In contrast to the well-developed phosphine ligands, phosphite ligands have received relatively little attention, despite the fact that phosphites have an advantage in terms of their stability toward air and moisture. Therefore, our attention was drawn to those of them, which have sterically hindered groups, so that they can be employed as ligands. Herein, we report on the subjects of Hiyama coupling, homocoupling, dehalogenation and aminocarbonylation using phosphites as ligands. In addition, decarboxylative coupling of sp-sp2 carbons is possible by palladium-catalyst. Employing propiolic acid (1) as a difunctional alkyne, and using the consecutive reactions of the Sonogashira reaction and the decarboxylative coupling, unsymmetrically substituted diaryl alkynes were obtained in moderate to good yield.

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