Correction to N,O π-Conjugated 4-Substituted 1,3-Thiazole BF₂ Complexes: Synthesis and Photophysical Properties

Abstract

P age 1096, Scheme 1. The substituent definitions and the reaction conditions were missed. The corrected version of Scheme 1 is presented here. This error does not affect the discussion of the results or the conclusions.

Organolithium-Mediated Postfunctionalization of Thiazolo[3,2-c][1,3,5,2]oxadiazaborinine Fluorescent Dyes

“…Nota bene : compound 2d (Me-group at position 5 of the thiazole ring) is a regioisomer of analogue 1b (Me-group at position 4 of thiazole ring), which exhibits the characteristic singlet for the H-5 atom at 6.05 ppm. 25 …”

“…It should be noted that the influence of the substituents at position 5 of the thiazole ring on the location of absorption and emission maxima of the thiazolo[3,2- c ][1,3,5,2]oxadiazaborinines is definitely much higher than the corresponding influence of the substituents at position 4. 25 …”

“…Thus, all 1 H NMR spectra of compounds 2a–l displayed the presence of a characteristic singlet signal for the H-4 atom in the range from 7.14 ppm for complex 2a to 8.06 ppm for aldehyde 2g . Nota bene : compound 2d (Me-group at position 5 of the thiazole ring) is a regioisomer of analogue 1b (Me-group at position 4 of thiazole ring), which exhibits the characteristic singlet for the H-5 atom at 6.05 ppm …”

“… 24 Our conception is based on the incorporation of an electron-rich heterocyclic building block into the oxadiazaborinine structure to increase the chemical stability of these complexes. Recently, we have described a simple synthetic route to highly fluorescent oxadiazaborinine dyes 1 based on electron-rich 1,3-thiazole building blocks ( Figure 1 a), 25 as well as to their benzo[ d ]thiazole analogues. 19b , 26 …”

Iodine‐mediated expedient synthesis of sulfur–nitrogen‐containing heteroaminals under acidic condition

“…Commercially available reagents and solvents were purchased from Aldrich, Spectrochem, Research Lab Chemical, and used without further purification. The starting materials 1a, 1e, 1h, 1j, 1k, 1l, 2a-d, and 2f were prepared according to a reported method in the literature [18,19].…”