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Syntheses of 2,2'-bibenzo[7]annulenes by double Au-catalyzed sequential activation of propargylic carboxylates
- Authors
- Lee, Young Ju; Heo, Hoon Gu; Oh, Chang Ho
- Issue Date
- Oct-2016
- Publisher
- Pergamon Press Ltd.
- Keywords
- Cyclization; Gold catalyst; Benzo[7lannulene; Propargyl carboxylate; Bisbenzoannulene
- Citation
- Tetrahedron, v.72, no.40, pp 6113 - 6117
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Tetrahedron
- Volume
- 72
- Number
- 40
- Start Page
- 6113
- End Page
- 6117
- ISSN
- 0040-4020
- Abstract
- We previously reported a novel Au-catalyzed sequential activation of two different propargyl carboxylates to 6-methylene-6H-benzo[7]annulene-5,8-diyl dicarboxylates. This reaction has been extended to syntheses of highly functionalized 2,2'-bibenzo[7]annulenes with four biphenyls bearing two sets of different propargyl carboxylates.
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