Abstract:
A compound that exhibits excellent color tone stability and physical properties as well as excellent photopolymerization activity over a wide region from near-ultraviolet to visible region, permitting relaxed operation under ambient light, so that wide application can be found in the dental field and photopolymerization industry; and a relevant photopolymerization initiator and hardenable composition. In particular, there is provided a novel camphorquinone derivative having an acylphosphine oxide group [—(C═O)—(P═O)
Abstract:
The present invention encompasses compounds of Formula (I) as well as the pharmaceutically acceptable salts and hydrates thereof. The compounds are useful for treating immune mediated diseases and conditions, such as bone marrow, organ and tissue transplant rejection. Pharmaceutical compositions and methods of use are included.
Abstract:
The invention relates to acyl-(2'-hydroxydiphenyl-2-yl)-phosphinic acid salts of formula (I) ##STR1## in which each of the radicals R.sup.1, R.sup.2 and R.sup.3 may be included singly or multiply and in which R.sup.1 and R.sup.2 are mutually independently hydrogen, an alkyl or alkoxy radical with 1 to 6 carbon atoms or halogen with an atomic number of 9 to 35; R.sup.3 means the same as R.sup.1 or R.sup.2 ; Ar is an aromatic hydrocarbon radical with 6 to 10 carbon atoms; and Me is a cation of at least one alkaline metal or N(R.sup.4).sub.4 + in which the radicals R.sup.4 are the same or different and stand for an alkyl radical with 1 to 6 carbon atoms. The invention also relates to a process for producing these compounds (I) and their use as photoinitiators in photopolymerisable materials, preferably on an aqueous basis.
Abstract:
Compounds which are inhibitors of cholesterol biosynthesis (by inhibiting de novo squalene biosynthesis), and thus are useful as hypocholesterolemic agents and antiatherosclerotic agents, are provided which have the structure ##STR1## wherein R.sup.2 is a metal ion, lower alkyl or H;R.sup.3 is a metal ion or lower alkyl;R is R.sup.1 --(CH.sub.2).sub.n --, R.sup.1 --(CH.sub.2).sub.m --O-- orR.sup.1 --(CH.sub.2).sub.m --OCH.sub.2 --, wherein n is 1 to 4 and m is 0 to 3, andR.sup.1 is R.sup.5 --Q.sup.1 --Q.sup.2 --Q.sup.3 --wherein R.sup.5, Q.sup.1, Q.sup.2 and Q.sup.3 are as defined herein.New intermediates, new methods of preparation and a method for using such compounds to inhibit cholesterol biosynthesis are also provided.
Abstract:
Bisacylphosphine oxide or bisacylphosphine sulfide compounds of formula (I) or (II) wherein R1, R2, R3, R1a, R2a and R3a independently of each other are C1-C4alkoxy or halogen; X is O, NR5 or S; or, if R4 is Cl, F or Br, X is a direct bond; Y is O or S; n is 1 or 2; R4, if n is 1, for example is hydrogen, (CO)R6, (CO)OR6, (CO)NR5R6, (SO2)—R6, C1-C28alkyl, R4, if n=2, is for example C1-C18alkylene; R5 is for example hydrogen, or C1-C12alkyl; R6 is for example C1-C12alkyl; R7, R8 and R9 independently of each other for example are C1-C4alkyl; R10 is for example C2-C18alkylene; X, is O or S; m is 1, 2 or 3; Q represents one or two inorganic or organic cations with a charge of m+; are suitable photoinitiators, available by a claimed process.
Abstract:
Exemplary embodiments provide an intermediate transfer member that can include a plurality of carbon nanotubes dispersed in an ultraviolet (UV) curable polymer in an amount to allow a bulk curing of the UV curable polymer and to provide the cured polymer an electrical resistivity and/or a mechanical modulus useful for electrostatographic devices and processes.
Abstract:
Exemplary embodiments provide an intermediate transfer member that can include a plurality of carbon nanotubes dispersed in an ultraviolet (UV) curable polymer in an amount to allow a bulk curing of the UV curable polymer and to provide the cured polymer an electrical resistivity and/or a mechanical modulus useful for electrostatographic devices and processes.
Abstract:
Process for the preparation of aromatic acylphosphine oxides (II) in which aromatic carboxyphosphines (I) are converted to the acylphosphine oxides (II).
Abstract:
There are described pesticidal compositions comprising one or more compounds of the formula I, ##STR1## in which Ra is a group R.sup.2 or --OR.sup.2,E is oxygen or sulphur,Rm is --O.sup..crclbar. M.sup..sym. or --NRyRz,M.sup..sym. is one equivalent of an agriculturally acceptable cation,R.sup.1 and R.sup.2, which may be the same or different, each represent hydrogen, alkyl, alkenyl, alkynyl or aryl; the alkyl, alkenyl, alkynyl or aryl optionally being substituted by one or more halogen, alkoxy, nitro, alkyl, --CF.sub.3, nitrile, or carboxylic acid or a salt, ester, or amide thereof, andRy and Rz, which may be the same or different, each represent hydrogen or alkyl,or an agriculturally acceptable derivative thereof.There are also described methods for making and using compounds of formula I.
Abstract translation:描述了包含一种或多种式I,其中R a是基团R 2或-OR 2的化合物,E是氧或硫,R m是-O( - )M(+)或-NR y R z的农药组合物 ,M(+)是农业上可接受的阳离子的1当量,R 1和R 2可以相同或不同,各自代表氢,烷基,烯基,炔基或芳基; 任选被一个或多个卤素,烷氧基,硝基,烷基,-CF 3,腈或羧酸或其盐,酯或酰胺取代的烷基,烯基,炔基或芳基,以及R y和R z,其可以是 相同或不同,各自表示氢或烷基,或其农业上可接受的衍生物。 还描述了制备和使用式I化合物的方法。