상세 보기
초록
A cascade reaction of 1-(2-(3-acetoxyprop-1-ynyl)phenyl)prop-2-ynyl acetate and its derivatives is catalyzed by gold to give the corresponding benzo[7]annulenes (see scheme) in excellent yields. A double activation of the gold catalyst toward two different propargylic carboxylates was proposed. Benzoannulenes were hydrolyzed to 8-hydroxybenzo[7]annulene-5-ones.
키워드
benzo[7]annulenes; cyclization; gold catalysis; propargyl carboxylates; sequential activation; PLATINUM-BOUND PYRYLIUM; C-C; ASYMMETRIC CYCLOADDITIONS; ORGANOGOLD COMPOUNDS; 3+2 CYCLIZATION; CYCLOISOMERIZATION; ALKYNE; INSERTION; ACCESS; BOND
- 제목
- Gold-Catalyzed Sequential Activation of Propargylic Carboxylates: A Facile Route to Benzoannulenes
- 저자
- Oh, Chang Ho; Kim, Ji Hee; Oh, Bu Keun; Park, Jong Ryul; Lee, Ji Ho
- 발행일
- 2013-02
- 유형
- Review
- 권
- 19
- 호
- 8
- 페이지
- 2592 ~ 2596