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Journal ArticleDOI

Radical cyclisation of 4-(o-bromophenoxy)-2H-1-benzopyrans; an efficient synthesis of pterocarpans

01 Jan 1988-Journal of The Chemical Society, Chemical Communications (The Royal Society of Chemistry)-Iss: 1, pp 28-29
Abstract: The preparation of 4-(o-bromophenoxy)-2H-1-benzopyrans and their conversion into the pterocarpan skeleton via radical cylisation are reported.

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Topics: Benzopyrans (63%), Pterocarpan (55%)
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Journal ArticleDOI
Abstract: A variety of mono- and disubstituted phenols are alkylated with propargyl bromide to give phenyl 2-propynyl ethers, which were further coupled with aryl iodides under Sonogashira reaction conditions to give 3-phenoxy-1-aryl-1-propyne derivatives. The latter compounds underwent an initial Claisen rearrangement followed by ring closure to give functionalized benzo[ b ]furans in moderate to good yields.

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34 citations


Journal ArticleDOI
Hyung Kyoo Kwon1, Young Eun Lee1, Eun Lee1Institutions (1)
13 Jun 2008-Organic Letters
TL;DR: Stereoselective synthesis of (+)-monocerin was accomplished via radical cyclization of a vinylic ether intermediate.

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Abstract: Stereoselective synthesis of (+)-monocerin was accomplished via radical cyclization of a vinylic ether intermediate.

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22 citations


Journal ArticleDOI
Abstract: Silicon-centred radicals, derived from alkoxy dialkyl silanes by intramolecular hydrogen transfer, undergo 5-endo-trigonal closure.

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19 citations


Book ChapterDOI
Harry Heaney1, Jeong Soo Ahn2Institutions (2)
01 Jan 1996-

19 citations


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No. of citations received by the Paper in previous years
YearCitations
20171
20131
20112
20091
20082
20051