Fluorescence Sensing Properties of Thiazolobenzo-crown Ether Incorporating Coumarin

Lee, Sang Hoon; Helal, Aasif; Kim, Hong-Seok

doi:10.5012/bkcs.2010.31.03.615

Cited by 5 publications

(1 citation statement)

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“…The marked difference from the absorption maxima may be due to the intermolecular charge transfer (ICT) from the nitrogen donor to the carbonyl acceptor of the coumarin moiety. 52 Moreover, the observed difference of 3c from 3b and 3j was because of the presence of a donor group, i.e. halogen, at the para position of nitrogen, accumulating the charge, which might cause a little disturbance in aggregation.…”

Section: 51mentioning

confidence: 99%

A two component protocol for synthesis of 3-(2-(substituted phenylamino)thiazol-4-yl)-2H-chromen-2-ones

Jazideh¹,

Farhoomand²,

Daneshyar

et al. 2013

Turk J Chem

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An efficient 2-component synthesis of a series of 3-(2-(substituted phenylamino)thiazol-4-yl)-2 H -chromen-2ones (3a-j) was achieved by the reaction of 3-(2-thiocyanatoacetyl)-2 H -chromen-2-one (1) with a variety of suitably substituted anilines in 1:1 molar ratio in ethanol. The structures of the products were established by elemental analyses, and UV-vis, FTIR, 1 H and 13 C NMR, and mass spectroscopy. 3-(2-(4-Methylphenylamino)thiazol-4-yl)-2 H -chromen-2one (3j) was further characterized by single crystal X-ray diffraction study. This compound, C 19 H 14 N 2 OS, crystallizes in the orthorhombic space group Pna21, with Z = 4, and unit cell parameters a = 13.0785(11), b = 25.746(2), c = 4.7235(3)Å, α = β = γ = 90 • .

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Section: 51mentioning

confidence: 99%