摘要:
Monoazo dyes exhibiting excellent wash- and lightfastness and being essentially insensitive to acid having the formula ##SPC1##Wherein X, X.sub.1 and X.sub.2 are chlorine or bromine, and M is an alkali metal or hydrogen.
摘要:
A compound, useful as an anti-cancer drug or agent, having the formulaR.sub.1 --X--R.sub.2where X represents a polynuclear aromatic or heteroaromatic hydrocarbon having between two and four fused rings which may be substituted by hydroxyl, amino, alkylamino, alkoxy or halogeno, R.sub.1 represents: ##STR1## where y represents one member selected from: ##STR2## or alkylated derivatives thereof, and R.sub.2 represents hydrogen or R.sub.1, an acid addition salt of said compound, a nitrogen oxide derivative of said compound in the case where it contains a ring nitrogen atom or atoms, and a quaternary salt of said compound in the case where it contains a ring nitrogen atom or atoms.
摘要:
Aromatic azoamines are prepared by diazotizing an aromatic amine, coupling the diazonium salt with the aromatic amine, and rearranging the resulting aromatic diazoamine. The several reactions are effected in single stage by introducing vaporous nitrogen oxides to a reaction medium essentially consisting of the aromatic amine [.alpha.], a salt of the aromatic amine [.beta.], and water [.gamma.], with the percentage weight relationship existing among the components .alpha., .beta. and .gamma. being such that:10
摘要:
3-Diazonium salts of pyrazole, useful as intermediates in the preparation of azo dyes are obtained by an oxidative diazotization of 3-amino-pyrazolines with nitrous acid or with nitrosyl-sulphuric acid. The 3-diazonium salts of pyrazole have the following structure: ##STR1## wherein: X is a radical --CO-- or --COO--,n is 0 or 1,R is hydrogen (in such case n is always 0), a normal or ramified alkyl C.sub.1 --C.sub.4, an aromatic or heterocyclic, optionally substituted, radical, in particular a phenyl radical having the structure: ##STR2## in which m may vary from 0 to 3 and substituents R.sub.3, either like or unlike one another for m>1, are alkyls C.sub.1 --C.sub.4 with linear or ramified chain, halogens, a cyano, nitro, sulphonic or carboxylic group, carboxyesters having a linear or ramified chain C.sub.1 --C.sub.4, alkoxyls having a linear or ramified chain C.sub.1 --C.sub.4, trifluoro-methyl groups, acylamino groups having a linear or ramified aliphatic chain C.sub.1 --C.sub.4, or sulphonamide groups of the type ##STR3## wherein substituents R.sub.4 and R.sub.5, like or unlike each other, are hydrogen, or linear or ramified aliphatic chains C.sub.1 --C.sub.4, andR.sub.1 and R.sub.2, either like or unlike each other, are hydrogen, linear or ramified aliphatic chains C.sub.1 --C.sub.4, or non-substituted or substituted benzene residues.
ARE PRODUCED FOR USE AS PIGMENT DYESTUFFS, ADAPTED FOR INCORPORATION IN LACQUERS AND VARNISHES, SYNTHETIC MATERIALS, SPINNING MASSES AND IN THE FIELD OF PAPER AND TEXTILE PRINTING. THE LAKES EXHIBIT PARTICULARLY GOOD LIGHT FASTNESS PROPERTIES. CALCIUM OR MANGANESE LAKES OF THE AXO DYESTUFF OF THE FORMULA
摘要:
A drop-in shifter for a manual transmission includes an elongated base, a shift stick mounted on the base for multi-axis movement and a depending gear actuating lever. An elongated rail is supported on the base by spaced bearings for rotational and lateral shifting movement. The shift stick has a lower end pivoted to the rail. The gear actuating lever is fixed to the rail at a point spaced from the shift stick. The lever extends through the base which is bolted to the transmission. Multi-axis movement of the shift stick is translated into multi-axis movement of the gear actuating lever through the bearings and rail.