Researcher ORCID Identifier

https://orcid.org/0009-0002-7581-2065

Graduation Year

2026

Document Type

Campus Only Senior Thesis

Degree Name

Bachelor of Arts

Department

Chemistry

Reader 1

Nicholas Ball

Reader 2

Roberto Garza

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Terms of Use for work posted in Scholarship@Claremont.

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© 2026 Joseph R Novicki & Nicholas Ball

Abstract

Sulfur(VI)-containing functional groups, particularly sulfonamides and sulfones, are widely represented in modern pharmaceuticals due to their metabolic stability, structural diversity, and favorable physicochemical properties. Sulfur fluoride exchange (SuFEx) has emerged as a powerful “click” reaction for constructing sulfur(VI) linkages through nucleophilic substitution at electrophilic sulfur centers. More recently, sulfur–phenolate exchange (SuPhenEx) has been developed as a complementary fluorine-free strategy that replaces fluoride with an activated phenolate leaving group, improving sustainability while maintaining efficiency.

Although SuFEx and SuPhenEx proceed through similar mechanisms, their tandem integration in small-molecule synthesis remains largely unexplored. This work proposes a telescoped one-pot SuFEx/SuPhenEx strategy for the synthesis of α-amidosulfonamides from bifunctional fluorosulfate substrates. In this approach, the sulfur–fluoride handle first undergoes SuFEx with a trimethylsilyl-protected amine under catalytic Lewis acid conditions. The activated phenolate handle then participates in SuPhenEx with a carbon-based pronucleophile, to afford an α-amidosulfonamide scaffold in a single operational method.

Available for download on Monday, April 23, 2029

This thesis is restricted to the Claremont Colleges current faculty, students, and staff.

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