Abstract: A method for making diazo-compounds, diazonium salts thereof and other protected forms of these compounds. Diazo-compounds are prepared by reaction of a tertiary phosphine reagent carrying a reactive carbonyl group with an azide. The reaction can also generate an acyl triazene which can be converted thermally or by addition of base to form the diazo-compound or the acyl triazene can be isolated. The method is particularly useful for conversion of azides carrying one or more electron withdrawing groups to diazo-compounds. The method can be carried out in aqueous medium under mild conditions and is particularly useful for conversion of azido sugars to diazo-compounds and diazonium salts thereof under physiological conditions. Tertiary phosphine reagents, particularly those that are water-soluble, and precursors for preparation of the reagents are provided.

Abstract: The invention relates to carbon surfaces modified with one or more azide groups. The invention also relates to methods of modifying carbon surfaces with one or more azide groups.

Abstract: A method for making diazo-compounds, diazonium salts thereof and other protected forms of these compounds. Diaz-compounds are prepared by reaction of a tertiary phosphine reagent carrying a reactive carbonyl group with an azide. The reaction can also generate an acyl triazene which can be converted thermally or by addition of base to form the diazo-compound or the acyl triazene can be isolated. The method is particularly useful for conversion of azides carrying one or more electron withdrawing groups to diazo-compounds. The method can be carried out in aqueous medium under mild conditions and is particularly useful for conversion of azido sugars to diazo-compound and diazonium salts thereof under physiological conditions. Tertiary phosphine reagents, particularly those that are water-soluble, and precursors for preparation of the reagents are provided.

Abstract: The present invention refers to analogues of 1,3-bis(4-nitrophenyl)triazenes, their pharmaceutically acceptable salts and N-acyl derivatives for the treatment of different types of tumors. Said compounds show cytotoxicity at very low concentrations (IC50 0.22 to 12.8 ?M), and good solubility. These compounds can be used in the treatment of tumor patients as single drugs or in combination with other cytostatics.

Abstract: The present invention relates to fluorescent pyrene dyes in general. The present invention provides a wide range of fluorescent dyes and kits containing the same, which are applicable for labeling a variety of biomolecules, cells and microorganisms. The present invention also provides various methods of using the fluorescent dyes for research and development, forensic identification, environmental studies, diagnosis, prognosis, and/or treatment of disease conditions.

Abstract: A method for producing by electrochemical reduction a carbon-containing material with its surface modified by organic groups, in particular functionalized organic groups, contacting the carbon-containing material with an organic diazonium salt in solvent, optionally in the presence of an electrolyte; negative polarisation of the carbon-containing material relative to an anode also in contact with an electrolyte solution separate from the diazonium salt solution. The electrochemical reduction is carried out on an organic diazonium salt in protic solvent in an acid medium.

Abstract: The present invention is directed to bistriazene compounds, pharmaceutical compositions containing effective anti-cancer amounts of these compounds, a method for treating cancer comprising administering to affected subjects an anti-cancer effective amount of a bistriazene compound, and the use of bistriazene compounds as crosslinking reagents applicable to the synthesis and manipulation of polymeric macromolecules.

Abstract: The present invention is directed to bistriazene compounds, pharmaceutical compositions containing effective anti-cancer amounts of these compounds, a method for treating cancer comprising administering to affected subjects an anti-cancer effective amount of a bistriazene compound, and the use of bistriazene compounds as crosslinking reagents applicable to the synthesis and manipulation of polymeric macromolecules.

Abstract: The present invention is directed to bistriazene compounds, pharmaceutical compositions containing effective anti-cancer amounts of these compounds, a method for treating cancer comprising administering to affected subjects an anti-cancer effective amount of a bistriazene compound, and the use of bistriazene compounds as crosslinking reagents applicable to the synthesis and manipulation of polymeric macromolecules.

Abstract: Processes for preparing a carbon product having an organic group attached to a carbon material. The carbon material is selected from graphite powder, a graphite fiber, a carbon fiber, a carbon cloth, a vitreous carbon product, and an activated carbon product. In one process at least one diazonium salt reacts with a carbon material in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon material in a protic reaction medium.

Abstract: A substituted 1-(2-chloroethyl)-3-acyl-3-alkyltriazene of the formula: ##STR1## in which R.sub.1 is 1-oxoalkyl containing from two to eight carbon atoms, fluorinated 1-oxoalkyls containing from two to eight carbon atoms and substituted with up to three fluorine atoms, benzoyl, phenylacetyl, carboalkoxy containing from two to eight carbon atoms, fluorinated carboalkyl containing from two to eight carbon atoms and up to three fluorine atoms, carbophenoxy, N-phenyl aminocarbonyl, N-alkyl aminocarbonyl containing from two to eight carbon atoms, thiocarbamoyl, N-alkylthiocarbamoyls with from two to eight carbon atoms, N-phenylthiocarbamoyl, dialkylphosphonates in which the alkyl groups can be the same or different and each contains from one to seven carbon atoms, phenylsulfonyl, and meta or para-substituted phenylsulfonyl in which the meta or para substituent is methyl, ethyl, methoxy, ethoxy, fluoro and chloro; and R.sub.

Abstract: Triazine-substituted azobenzenesulfonamides useful as preemergent and postemergent herbicides, selected from compounds of Formulae I or II ##STR1## or agriculturally suitable salts thereof, wherein R, R.sub.1, R.sub.2, R.sub.3 and A are as defined herein.