Abstract: Organic arsenical compounds are useful to inhibit angiogenesis in a variety of disease conditions.

Abstract: The present invention provides organic arsenicals which may be used to treat numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia.

Abstract: The present invention provides methods of synthesizing organic arsenicals. Many of these compounds have potent in vitro cytotoxic activity against numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia.

Abstract: The composition for the alkylation according to the present invention is characterized in that the composition contains a cobalt complex. The method of detoxifying the harmful compound according to the present invention, is characterized in that a harmful compound containing at least one element selected from the groups comprising arsenic, antimony and selenium is detoxified by the alkylation of the harmful compound, in the presence of the composition according to the present invention.

Abstract: An organoantimony compound represented by the formula (1), processes for producing polymers with use of the compound, and polymers wherein R1 and R2 are C1-C8 alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R3 and R4 are each a hydrogen atom or C1-C8 alkyl, and R5 is aryl, substituted aryl, an aromatic heterocyclic group, oxycarbonyl or cyano.

Abstract: Arsenic trioxide, an inorganic compound, is commercially available anti-cancer agent but it carries significant toxicity. Organic arsenicals, on the other hand, are much less toxic, to the extent that the methylation of inorganic arsenic in vivo into organic arsenicals has been considered a detoxification reaction. New organic arsenic derivatives have been synthesized, including S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid and S-dimethylarsino-thiobenzoic acid, and established its potent in vitro cytotoxic activity against numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia. Results form a basis for the development of S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid, S-dimethylarsino-thiobenzoic acid, and other organic arsenicals as an anti-cancer therapy, combining high efficacy with very low, if any, toxicity.

Abstract: The present invention provides organic arsenicals which may be used to treat numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia.

Abstract: A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl- substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.

Abstract: The present invention provides organic arsenicals. Many of these compounds have potent in vitro cytotoxic activity against numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia.

Abstract: A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl-substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.

Abstract: Arsenic trioxide, an inorganic compound, is commercially available anti-cancer agent but it carries significant toxicity. Organic arsenicals, on the other hand, are much less toxic, to the extent that the methylation of inorganic arsenic in vivo into organic arsenicals has been considered a detoxification reaction. New organic arsenic derivatives have been synthesized, including S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid and S-dimethylarsino-thiobenzoic acid, and established its potent in vitro cytotoxic activity against numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia. Results form a basis for the development of S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid, S-dimethylarsino-thiobenzoic acid, and other organic arsenicals as an anti-cancer therapy, combining high efficacy with very low, if any, toxicity.

Abstract: Arsenic trioxide, an inorganic compound, is commercially available anti-cancer agent but it carries significant toxicity. Organic arsenicals, on the other hand, are much less toxic, to the extent that the methylation of inorganic arsenic in vivo into organic arsenicals has been considered a detoxification reaction. New organic arsenic derivatives have been synthesized, including S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid and S-dimethylarsino-thiobenzoic acid, and established its potent in vitro cytotoxic activity against numerous human tumor cell lines, both of solid and hematological origin, as well as against malignant blood cells from patients with leukemia. Results form a basis for the development of S-dimethylarsino-glutathione, S-dimethylarsino-thiosuccinic acid, S-dimethylarsino-thiobenzoic acid, and other organic arsenicals as an anti-cancer therapy, combining high efficacy with very low, if any, toxicity.

Abstract: Synthetic hydrotalcites of the general formula [M2+1-xM3+x(OH)2]x+[An?x/n·mH2O]x? where M2+ is a divalent cation, M3+ is a trivalent cation and An? is an organic anion selected from straight chain carboxylates of C16-C18 acids, carboxylates of aromatic acids, carboxylates of acrylic acid, unsaturated carboxylates of methacrylic acid, unsaturated carboxylates of vinylacetic acid and C2 and higher organic acids containing heteroatoms such as nitrogen, phosphorous, sulfur and halogens are disclosed, along with methods of synthesis and uses.

Abstract: The present invention features biarsenical molecules. Target sequences that specifically react with the biarsenical molecules are also included. The present invention also features kits that include biarsenical molecules and target sequences. Tetraarsenical molecules are also featured in the invention.

Abstract: The invention provides anti-thiol reagents which inhibit enzyme activity of cell-associated protein disulfide isomerase (PDI) by oxidizing or blocking PDI active site vicinal thiol groups which normally participate in disulfide bond rearrangement of PDI substrates. Inhibition of this PDI function is particularly useful in blocking PDI-mediated entry of HIV or other virions into a host cell, as well as inhibiting lymphocyte traffic through the lymph nodes. The invention further provides an assay for the identification of such PDI inhibitors based on the discovery that inhibitors of the invention also induce shedding of the leucocyte L-selectin adhesion molecule.

Abstract: An antimony/Lewis base adduct of the formula SbR.sub.3.L, wherein each R is independently selected from C.sub.1 -C.sub.8 alkyl, C.sub.1 -C.sub.8 perfluoroalkyl, C.sub.1 -C.sub.8 haloalkyl, C.sub.6 -C.sub.10 aryl, C.sub.6 -C.sub.10 perfluoroaryl, C.sub.6 -C.sub.10 haloaryl, C.sub.6 -C.sub.10 cycloalkyl, substituted C.sub.6 -C.sub.10 aryl and halo; and L is a Lewis base ligand coordinating with SbR.sub.3. The adducts of the invention are useful as metal source compositions for chemical vapor deposition, assisted chemical vapor deposition (e.g., laser-assisted chemical vapor deposition, light-assisted chemical vapor deposition, plasma-assisted chemical vapor deposition and ion-assisted chemical vapor deposition), ion implantation, molecular beam epitaxy, and rapid thermal processing, to form antimony or antimony-containing films.

Abstract: Preparation of methylene-bridged compounds of the formula I ##STR1## where R.sup.1 to R.sup.4 are identical or different and are each saturated C.sub.1 -C.sub.30 -hydrocarbyl, unsubstituted phenyl, phenyl substituted by substituents inert under the reaction conditions, or hydrogen, E.sup.1 and E.sup.2 are identical or different and are each phosphorus, arsenic or antimony, and X is a chemical bond or oxygen by reacting a tin compound of the general formula IIR.sub.3.sup.5 Sn--CH.sub.2 M, IIwhere R.sup.5 is C.sub.1 --C.sub.20 -hydrocarbyl and M is an alkali metal, with a compound of the general formula III ##STR2## where Y is halogen, metallating the thus-obtained tin compound of the general formula IV ##STR3## with an alkali organometallic, and reacting the product with a compound of the general formula V ##STR4## to give a methylene-bridged compound of the formula I. And novel bis(diorganophosphino)methanes.

Abstract: Disclosed is an improved method of preparation of trifluoromethylthiocopper n a very highly purified state and its application to the synthesis of organic and inorganic compounds containing the trifluoromethylthio moiety. Biological testing has shown that dimethyl(trifluoromethylthio)arsine is one of the most potent lung irritants known.

Abstract: A solid composition of matter comprising heteropolyoxo vanadium oxide compounds of the general formula: (R'.sub.4 N).sub.x H.sub.y (VO.sub.b).sub.a (RQO.sub.3).sub.-- nH.sub.2 O) wherein (VO.sub.b).sub.a (RQO.sub.3) is a molecular anion; R' is a substituted or unsubstituted monovalent organic group covalently bound to nitrogen to form a tetraorgano ammonium cation (R'.sub.4 N); R is a substituted or unsubstituted monovalent organic group covalently bound to Q to form an organophosphorus or organoarsenous group; R and R' are selected from the group consisting of C.sub.1 -C.sub.20 alkyl, aryl, hetero alkyl, hetero aryl or mixtures thereof; Q is a phosphorus or arsenic atom; a is about 1.0 to about 3.0; b is about 1.0 to about 2.0; (x+y) are determined by the vanadium oxidation state (m) where (x+y) equals (2ab+2)-ma and where (x+y) and x can not equal zero; and n is zero or a positive number.

Abstract: A process is disclosed for preparing biaryl, bidentate ligands comprising:(1) contacting a biaryl compound having the structural formula: ##STR1## with a proton abstracting agent under conditions suitable to form a biaryl dianion, which is then(2) contacted with a Group V compound of the formula: ##STR2## where X' is halogen or a suitable leaving group.

Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralyky, alkaryl, alkoxyalky, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 where Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatieves thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.

Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each AR is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.

Abstract: A method is provided for highly pure mono- and dialkylarsines, particularly removing substantially all silicon-containing impurities. A mono- or dialkylarsine is reacted with either an alkali metal or an alkali metal hydrocarbyl, thereby producing an alkali metal alkylarsenide. Silicon, germanium, zinc and other metallic impurities are removed from the alkali alkylarsenide. Mono- and dialkylarsine is then regenerated by reaction of the alkali metal alkylarsenide with a proton donor.

Abstract: The process for preparing a bidentate ligand comprising the steps,(1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate,(2) contacting said ozonated intermediate with a reducing agent under conditions appropriate to form the corresponding diol,(3) contacting said diol with a latent displaceable functional group under conditions appropriate to convert the diol to the corresponding difunctional biaryl compound, and(4) contacting said difunctional biaryl compound, with an anion of N, P, As, Sb or Bi under conditions appropriate to form the desired bidentate ligand.

Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and y bonds are attached to adjacent carbon atoms on the ring structure;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.