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Twofold radical-based synthesis of N,C-difunctionalized bicyclo[1.1.1]pentanes

Abstract:

Bicyclo[1.1.1]pentylamines (BCPAs) are of growing importance to the pharmaceutical industry as sp3-rich bioisosteres of anilines and N-tert-butyl groups. Here we report a facile synthesis of 1,3-disubstituted BCPAs using a twofold radical functionalization strategy. Sulfonamidyl radicals, generated through fragmentation of α-iodoaziridines, undergo initial addition to [1.1.1]propellane to afford iodo-BCPAs; the newly formed C–I bond in these products is then functionalized via a silyl-mediated Giese reaction. This chemistry also translates smoothly to 1,3-disubstituted iodo-BCPs. A wide variety of radical acceptors and iodo-BCPAs are accommodated, providing straightforward access to an array of valuable aniline-like isosteres.

Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1021/jacs.1c04180

Authors



Publisher:
American Chemical Society
Journal:
Journal of the American Chemical Society More from this journal
Volume:
143
Issue:
26
Pages:
9729-9736
Publication date:
2021-06-23
Acceptance date:
2021-06-23
DOI:
EISSN:
1520-5126
ISSN:
0002-7863
Pmid:
34161076


Language:
English
Keywords:
Pubs id:
1183945
Local pid:
pubs:1183945
Deposit date:
2021-07-13

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