21658-58-2Relevant academic research and scientific papers
Dyeing method using a specific cationic derivative and a compound selected among a specific aldehyde, a specific ketone, a quinone and a di-imino-isoindoline or 3-amino-isoindolone derivative
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, (2008/06/13)
Compositions, methods, and kits for dyeing at least one keratin fiber, comprising at least one specific cationic compound and at least one compound chosen from specific aldehydes, specific ketones, quinones, diiminoisoindoline derivatives, and 3-aminoisoindolone derivatives, with the proviso that the inventive compositions do not comprise an oxidizing agent.
Syntheses with Aliphatic Dialdehydes, XLIV. Chiral Pentamethine Cyanine Dyes and Heterocycles from Derivatives of (S)-(+)-2-sec-Butylmalonaldehyde
Reichardt, Christian,Budnik, Ulrich
, p. 2023 - 2030 (2007/10/02)
Syntheses and UV/Vis-spectroscopic properties of the chain-substituted, homochiral pentamethine cyanine dyes 16 and 17 are described. 16 and 17 as well as the homochiral five-, six-, and seven-membered heterocycles 11 - 15 are prepared from derivatives (5 and 6) of homochiral (S)-(+)-2-sec-Butylmalonaldehyde (8), the first known chiral malonaldehyde, which in turn is synthesized in a seven-step procedure from homochiral (S)-(-)-2-methyl-1-butanol (1).
