A highly selective hydrogen‐deuterium exchange in indolium heptamethine cyanines

Malgorzata Lipowska, Steven Patterson, Gabor Patonay, Lucjan Strekowski

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Chemical shift assignments in 1H nmr spectra of four tricarbocyanines have been made. Studies by 1H nmr have shown a rapid acid‐catalyzed proton exchange at positions 1′,7′ and a much slower exchange at positions 3′,5′ of the heptamethine chain. Base catalysis results in a slow exchange at positions 1′,7′ only.

Original languageEnglish (US)
Pages (from-to)1177-1180
Number of pages4
JournalJournal of Heterocyclic Chemistry
Volume30
Issue number5
DOIs
StatePublished - Jan 1 1993

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