期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 73, 期 5, 页码 1963-1970出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo702463f
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资金
- NIGMS NIH HHS [GM72041] Funding Source: Medline
[GRAPHICS] The objective of this work was to form water-soluble 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) derivatives. Sulfonation conditions were developed for several BODIPY dyes to give the monosulfonated products 1a-3a and the disulfonated products 1b-3b. Compounds 1 are functionalized with an aryl iodide for organometallic couplings. Similarly, 2 has an aromatic bromide but also two chlorine atoms that could be replaced via S(N)Ar reactions. The amine 3 is amenable to couple to biomolecules via acylation reactions. A diazotization/azide reaction sequence was used to convert the amines 3 into azides 4; the latter may be functionalized via click reactions as illustrated by conversion of 4b into 5. Compound 5 was designed to have an acid-functional group to facilitate activation and coupling to amines. Spectral data for these materials indicate they are highly fluorescent probes in aqueous environments.
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