Composition for dyeing keratin fibers which contain at least one diaminopyrazole, dyeing process, novel diaminopyrazoles and process for their preparation
Composition for dyeing keratin fibers which contain at least one
申请人:L'Oreal
公开号:US06099592A1
公开(公告)日:2000-08-08
The invention relates to novel compositions for the oxidation dyeing of keratin fibers, comprising at least one specific diaminopyrazole derivative, to the dyeing process using this composition, to novel diaminopyrazole derivatives and to a process for their preparation.
Reactivity of pyrazolo[4,3-<i>c</i>][1,2,5]oxadiazin-3(5<i>H</i>)-ones toward<i>C</i>-nucleophiles: Synthesis of pyrazolo[3,4-<i>b</i>]pyrazines
作者:P. Giori、A. C. Veronese、T. Poli、C. B. Vicentini、M. Manfrini、M. Guarneri
DOI:10.1002/jhet.5570230255
日期:1986.3
The reaction of pyrazolo[4,3-c][1,2,5]oxadiazin-3(5H)-ones 1 with carbanions prepared in situ from compounds containing an activated methylene group afforded pyrazolo[3,4-b]pyrazines 4–13 in good yields. The possible reaction mechanism is proposed and discussed.
吡唑并[4,3- c ] [1,2,5]恶二嗪-3(5 H)-ones 1与由含活化亚甲基的化合物原位制备的碳负离子反应,得到吡唑并[3,4- b ]吡嗪4–13,丰产。提出并讨论了可能的反应机理。
Synthesis of a Novel Series of Imidazo[4,5-c]pyrazole Derivatives and Their Evaluation as Herbicidal Agents
作者:Chiara B. Vicentini、Maurizio Manfrini、Manuela Mazzanti、Angelo Scatturin、Carlo Romagnoli、Donatella Mares
control require periodic introduction of new herbicides. Imidazo[4,5‐c]pyrazoles, which were considered of interest as potential herbicides, were synthesized and examined for the pre‐emergence, post‐emergence, and post‐transplant control of weeds in rice against broadleaf and grass weed species. The data obtained suggest that some imidazo[4,5‐c]pyrazoles have potential herbicidal activity against a wide range