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Synthesis and spectroscopic properties of 4-(4-carboxyphenyl)-3,3′,5′-trimethyl-2,2′-pyrromethen-1,1′-BF2 complex and its methyl ester

✍ Scribed by Lingjiang Cheng; David A. Lightner


Publisher
Journal of Heterocyclic Chemistry
Year
1998
Tongue
English
Weight
282 KB
Volume
35
Category
Article
ISSN
0022-152X

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✦ Synopsis


Abstract

A new, strongly absorbing red dipyrrole chromophore 1 suitable for exciton coupling studies has been synthesized and shown to exhibit an intense absorption (ϵ˜ 57,000) at λ (max) ˜520 nm and a strong fluorescence at λ (em) ˜555 nm.


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Synthesis of 2,5,8-trimethyl-3,4-dihydro
✍ E. J. Eisenbraun; B. Dewprashad; P. W. Geno; A. R. Taylor 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 French ⚖ 168 KB

## Abstract The synthesis of specifically labeled 2,5,8‐trimethyl‐3,4‐dihydro‐1(2H)‐naphthalenone‐2‐d and 3,5,8‐trimethyl‐3,4‐dihydro‐1(2H)‐naphthalenone‐2,2‐d~2~ through α‐proton exchange using neat trifluoroacetic acid‐d is described.