Patent GB-970585-A (GB)
Title: New reactive dyestuffs
Inventor: ARBUCKLE ALEXANDER WEIR
IPC: C09B62/02
Filed: 1961-07-31
Abstract: 2, 4 - Dichloro - 6 - (dimethoxyphosphinyl)-1,3,5-triazine is prepared by refluxing a mixture of cyanuric chloride and trimethylphosphite in toluene; 2-chloro-4, 6-bis (dimethoxyphosphinyl)-1,3,5-triazine, 2,4-dichloro-6-(diethoxyphosphynil)-1,3,5-triazine and 2,4-dichloro-6-(di-n-butoxyphosphinyl)-1,3,5-triazine are similarly prepared.  5-Cyano-2, 4-dichloro-6-(dimethoxyphosphinyl)-pyrimidine is prepared by reacting 5-cyano-2,4,6-trichloro-pyrimidine with trimethylphosphite.  2, 4-Dichloro-6-(P-butoxy-P-phenylphosphinyl)-1,3,5-triazine is prepared by reacting cyanuric chloride with benzenedibutyl-phosphonite. 2-Chloro-4-methoxy-6-(diethylphosphinyl)-1,3,5-triazine is prepared by reacting 2,6-dichloro-4-methoxy-1,3,5-triazine with P:P:O-triethylphosphinite.  Specification 885,547 is referred to.ALSO:The invention comprises dyes which contain at least one group of formula <FORM:0970585/C4-C5/1> wherein Y is a hydrogen atom, a cycloalkyl radical or a substituted or unsubstituted alkyl radical and Z is a heterocyclic ring which contains at least one <FORM:0970585/C4-C5/2> group and which is attached to N through a carbon atom of the heterocyclic ring and which carries, attached to a carbon atom of the heterocyclic ring at least one group of formula <FORM:0970585/C4-C5/3> wherein T1 and T2 each represent an oxygen atom or a direct link and X1 and X2 each independentl represent an alkyl, cycloalkyl or aralkyl radical.  The dyes may be prepared by reacting a dye containing at least one -NHY group, with a heterocyclic compound containing at least one <FORM:0970585/C4-C5/4> group and which contains, attached to carbon atoms of the heterocyclic ring, at least one halogen atom and at least one group of formula <FORM:0970585/C4-C5/5> The heterocyclic compounds are derivatives of quinazoline, phthalazine, pyridine, quinoline and preferably pyrimidine and 1,3,5-triazine. In a modification of the process, dyes wherein the heterocyclic ring Z contains at least one halogen atom, may be reacted with a compound which replaces the halogen atom by a "labile" group (i.e. a group which can react with textile materials so that the dye becomes attached to the textile by a covalent bond) or with a substituted or unsubstituted mercapto, hydroxy or amino compound.  Specified "labile" groups are sulphonic acid, thiocyano, sulphonated aryloxy or arylthio, quaternary ammonium and dithiocarbamate groups.  Azo dyes containing the said groups may be prepared by the usual diazotization and coupling procedures using suitably substituted components.  The dyes specified are of the mono- and dis-azo, metallized azo, stilbene-azo, nitro, phthalocyarine and anthraquinone series.  The dyes may be used to colour natural and regenerated cellulose, wool, silk, polyamide, polyacrylonitrile and polyester fibres but are preferably used to colour cellulose materials in the presence or an acid-binding agent.  The dyes may be applied together with a resin-forming composition to give a dyed and crease-resistant material. In an example a solution of 2,4-dichloro-6-(dimethoxy - phosphenyl) - 1,3,5 - triazine (see Division C2) in acetone is added to an aqueous solution of the disodium salt of 2-(41-amino-21-methylphenylazo) - naphthalene - 4,8 - disulphonic acid.  The mixture is stirred at 20-30 DEG C. with the addition of aqueous sodium carbonate to maintain a pH of 7 and the dye is precipitated with potassium chloride.  Many further examples are specified.  Specification 885,547 is referred to.