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Synthesis and applications of highly functionalized 1-halo-3-substituted bicyclo[1.1.1]pentanes

Abstract:
Bicyclo[1.1.1]pentanes (BCPs) are important bioisosteres of 1,4-disubstituted arenes, tert-butyl and acetylenic groups that can impart physicochemical benefits on drug candidates. Here we describe the synthesis of BCPs bearing carbon and halogen substituents under exceptionally mild reaction conditions, via triethylborane-initiated atom-transfer radical addition ring-opening of tricyclo[1.1.1.01,3]pentane (TCP) with alkyl halides. This chemistry displays broad substrate scope and functional group tolerance, enabling application to BCP analogues of biologically-relevant targets such as peptides, nucleosides, and pharmaceuticals. The BCP halide products can be converted to the parent phenyl/tert-butyl surrogates through triethylborane-promoted dehalogenation, or to other derivatives including carbonyls, alcohols, and heterocycles.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1039/C8SC01355A

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Chemistry; Organic Chemistry
Role:
Author
ORCID:
0000-0002-5821-1965
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Chemistry; Organic Chemistry
Role:
Author
ORCID:
0000-0002-3513-8267
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Chemistry; Organic Chemistry
Role:
Author


More from this funder
Funding agency for:
Arroniz, C
Caputo, D
Mansfield, S
Anderson, E
Grant:
EP/M019195/1
EP/L015838/1
EP/L015838/1
EP/M019195/1


Publisher:
Royal Society of Chemistry
Journal:
Chemical Science More from this journal
Volume:
9
Issue:
23
Pages:
5295-5300
Publication date:
2018-05-21
Acceptance date:
2018-05-20
DOI:
EISSN:
2041-6539
ISSN:
2041-6520


Pubs id:
pubs:858456
UUID:
uuid:22098225-945d-4121-9683-5c44f6df7334
Local pid:
pubs:858456
Source identifiers:
858456
Deposit date:
2018-06-20

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