Azo (Hydrazone) pigments: general principles
نویسندگان
چکیده
منابع مشابه
Azo pigments and quinacridones induce delayed hypersensitivity in red tattoos.
BACKGROUND Induction of delayed hypersensitivity reactions by red tattoos has been occasionally reported. Little is known about the inks used. Azo pigments have been implicated in some instances, but there is only one reported case involving quinacridones. OBJECTIVES To describe the clinical and pathological features and outcome of skin reactions induced by red tattoo pigments. PATIENTS, MA...
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The unprecedented diaza-ene reaction of formaldehyde N-tert-butyl hydrazone with nitroalkenes can be efficiently catalyzed by an axially chiral bis-thiourea to afford the corresponding diazenes in good to excellent yields (60-96%) and moderate enantioselectivities, up to 84 : 16 er; additional transformation of diazenes into their tautomeric hydrazones proved to be operationally simple and high...
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ژورنال
عنوان ژورنال: Physical Sciences Reviews
سال: 2021
ISSN: 2365-659X,2365-6581
DOI: 10.1515/psr-2020-0148