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Multicomponent type II anion relay chemistry (ARC): one-pot syntheses of 2,3-disubstituted furans and thiophenes.


ABSTRACT: Effective, one-pot syntheses of 2,3-disubstituted furans and thiophenes, exploiting 2-tert-butyldimethylsilyl-3-formylfuran and -thiophene as the respective bifunctional linchpins, have been developed. The synthetic protocol involves multicomponent type II Anion Relay Chemistry (ARC) mediated by a solvent-controlled C(sp(2))-->O 1,4-Brook rearrangement. Simple organolithiums and alpha-disubstituted ester enolates prove effective as the initiating nucleophiles.

SUBMITTER: Devarie-Baez NO 

PROVIDER: S-EPMC2777545 | biostudies-other | 2009 Apr

REPOSITORIES: biostudies-other

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Multicomponent type II anion relay chemistry (ARC): one-pot syntheses of 2,3-disubstituted furans and thiophenes.

Devarie-Baez Nelmi O NO   Kim Won-Suk WS   Smith Amos B AB   Xian Ming M  

Organic letters 20090401 8


Effective, one-pot syntheses of 2,3-disubstituted furans and thiophenes, exploiting 2-tert-butyldimethylsilyl-3-formylfuran and -thiophene as the respective bifunctional linchpins, have been developed. The synthetic protocol involves multicomponent type II Anion Relay Chemistry (ARC) mediated by a solvent-controlled C(sp(2))-->O 1,4-Brook rearrangement. Simple organolithiums and alpha-disubstituted ester enolates prove effective as the initiating nucleophiles. ...[more]

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