Process for the preparation of pigment compositions
申请人:Ciba Specialty Chemicals Corporation
公开号:US06361595B1
公开(公告)日:2002-03-26
Preparation of stabilized pigment compositions, comprising mixing a water-miscible quaternary ammonium compound of formula III
wherein R1, R2, R3 and R4 independently of each other stand for C1-C22aklyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X− is an anion, a water-immiscible organic solvent and a pigment.
Sulfones of Potential Medicinal Value I: Diazonium Coupling Products of Ethyl p-Toluenesulfonylacetate
作者:B.Blackburn Thompson、P.G. Kulkarni
DOI:10.1002/jps.2600580526
日期:1969.5
A coupling of various aryldiazonium salt solutions with ethylp-toluenesulfonylacetate has been effected at pH 7.5–8.5. Experimental details and physical properties of the products of this reaction are given. In order to establish whether the coupled product exists as an azo or as the isomeric hydrazo, NMR and IR spectroscopic data were obtained. Both sets of data confirm that the azo form is the proper
Vinylsilylalkoxy arylbenzotriazole compounds and UV absorbing compositions made therefrom
申请人:IOLAB CORPORATION
公开号:EP0282294A2
公开(公告)日:1988-09-14
Vinylsilylalkoxy arylbenzotriazol monomers such as 2-[3ʹ-t-butyl-5ʹ-(3ʺ-dimethylvinylsilylpropoxy)-2ʹ-hydroxyphenyl]-5-methoxybenzotriazole are disclosed. These monomers can be incorporated in optically clear silicone polymers to form intraocular lenses, contact lenses, and the like, which have UV absorbing properties.
An easy operable method of detecting phosphatase which comprises a step for the production of a dye to obtain an azo dye by the reaction of phosphatase in a tissue or cell or on chromosome with a 2'-naphthol AS phosphate, e.g. 3-hydroxy- N-2-biphenyl-2-naphthalenecarboxamide phosphate ester, followed by the reaction between the 2'-naphthol AS phosphate with a diazonium salt; an excitation step for the irradiation of excited light to the azo dye; and a detection step for the detection of fluorescence which is emitted upon irradiation of the excited light. The fluorescence is intense and lasts for a long time.
一种易于操作的检测磷酸酶的方法,它包括一个生产染料的步骤,通过组织或细胞或 染色体上的磷酸酶与 2'-萘酚 AS 磷酸酯(如 3-羟基-N-2-联苯-2-萘甲酰胺磷酸酯)反 应,得到偶氮染料;一个激发步骤,用于激发组织或细胞或染色体上的磷酸酶。3-hydroxy- N-2-biphenyl-2-naphthalenecarboxamide phosphate ester,然后 2'-naphthol AS phosphate 与重氮盐反应;激发步骤,将激发光照射到偶氮染料上;检测步骤,检测激发光照射后发出的荧光。荧光强度高,持续时间长。
Synthesis of 12-hetaryl-9,9-dimethyl-7,8,9,10-tetrahydrobenzo[a]acridin-11(12H)-ones
作者:N. G. Kozlov、Yu. D. Zhikharko、R. Z. Lytvyn、Yu. I. Gorak、E. D. Skakovskii、A. V. Baranovskii、L. I. Basalaeva、M. D. Obushak
DOI:10.1134/s107042801406013x
日期:2014.6
Three-component condensation of naphthalen-2-amine with 5-arylfuran(thiophene, N-methylpyrrole)-2-carbaldehyde and 5,5-dimethylcyclohexane-1,3-dione, as well as condensation of N-[(5-arylfuran(thiophen)-2-ylmethylidene]naphthalen-2-amine with 5,5-dimethylcyclohexane-1,3-dione gave the corresponding 12-[5-arylfuran(thiophen, N-methylpyrrol)-2-yl]-7,8,9,10-tetradrobenzo[a]acridin-11(12H)-ones.