摘要:
Dye-donor element for use according to thermal dye transfer methods, said element comprising a support having thereon a dye-binder layer comprising a dye corresponding to the general formula: ##STR1## wherein A represents the atoms completing a (hetero)aromatic ring system, which may be substituted or not, Y is O, S, or NR.sup.1, X stands for N-Ar, N-Het, N-N=Het, or CR.sup.2 R.sup.3, R.sup.1 is H, (un)substituted alkyl, (un)substituted cycloalkyl, (un)substituted aryl, --SO.sub.2 R.sup.4, --COR.sup.4, --CSR.sup.4, or --POR.sup.4 R.sup.5, Ar is an aromatic nucleus, which is substituted in para-position with amino, alkyloxy, aryloxy, alkylthio, arylthio, which groups may be substituted, or with hydroxy and mercapto, and which aromatic nucleus may also be substituted in other positions with alkyl, aryl, or an acylamido group, Het represents a substituted or unsubstituted heterocyclic ring, R.sup.2 and R.sup.3 each independently represent H, alkyl, cycloalkyl, aryl, alkenyl, alkynyl, a heterocyclic ring, cyano, a halogen atom, --SO.sub.2 R.sup.4, --COR.sup.4, --CSR.sup.4, or --POR.sup.4 R.sup.5, or R.sup.2 and R.sup.3 together represent the atoms necessary to complete a substituted or unsubstituted ring system including a substituted or unsubstituted heterocyclic ring system, and R.sup.4 and R.sup.5 each independently represent alkyl, cycloalkyl, aryl, alkenyl, aralkyl, alkyloxy, aryloxy, alkylthio, arylthio, amino, or a heterocyclic ring, or R.sup.4 and R.sup.5 together represent the atoms completing a 5- or 6-membered ring system.
摘要:
Dye-donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer containing a dye which has high transfer densities.
摘要:
Dye-donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer containing a dye corresponding to the following formula ##STR1## wherein Z represents CN, COOR.sup.1 or CONR.sup.2 R.sup.3 ;R.sup.1, R.sup.2 and R.sup.3 each independently represent hydrogen, alkyl, cycloalkyl, aryl, or R.sup.2 and R.sup.3 together represent the necessary atoms to close a heterocyclic nucleus;Y represents OR.sup.4 or NR.sup.5 R.sup.6 ;R.sup.4 represents hydrogen, alkyl, cycloalkyl, aryl, SO.sub.2 R.sup.7, COR.sup.7, CSR.sup.7, POR.sup.7 R.sup.8 ;R.sup.5 and R.sup.6 each independently has one of the significances given to R.sup.4 or represent amino, or R.sup.5 and R.sup.6 together represent the necessary atoms to close a heterocyclic nucleus, including a heterocyclic nucleus with an aliphatic or aromatic ring fused-on;R.sup.7 and R.sup.8 each independently represent alkyl, cycloalkyl, alkenyl, aralkyl, aryl, alkyloxy, aryloxy, alkylthio, arylthio, amino or a heterocyclic group or R.sup.7 and R.sup.8 together represent the necessary atoms to close a 5- or 6-membered ring;V represents O, S, Se, Te, NR.sup.27 ;R.sup.23, R.sup.24, R.sup.25 and R.sup.26 each independently represent hydrogen, alkyl, alkenyl, cycloalkyl, aryl, alkyloxycarbonyl, aryloxycarbonyl, carbonamido, or R.sup.23 and R.sup.24 together and/or R.sup.25 and R.sup.26 together represent the necessary atoms to close (a) ring(s) fused-on the nucleus andR.sup.27 represents hydrogen, alkyl, cycloalkyl, aryl or amino, with the provision that Y is not a NH.sub.2 -group.
摘要:
Dye corresponding to the following formula - ##STR1## wherein Z represents CN, COOR.sup.1 or CONR.sup.2 R.sup.3 ;R.sup.1, R.sup.2 and R.sup.3 each independently represents hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or R.sup.2 and R.sup.3 together represent the necessary atoms to close a heterocyclic nucleus or substituted heterocyclic nucleus;Y represents OR.sup.4 or NR.sup.5 R.sup.6 or CN;R.sup.4 represents hydrogen, substituted or unsubstituted or unsubstituted aryl, SO.sub.2 R.sup.7, COR.sup.7, CSR.sup.7, POR.sup.7 R.sup.8 ;R.sup.5 and R.sup.6 each independently has one of the significances given to R.sup.4 or represents substituted or unsubstituted amino, or R.sup.5 and R.sup.6 together represent the necessary atoms to close a heterocyclic nucleus or substituted heterocyclic nucleus, including a heterocyclic nucleus with an aliphatic or aromatic ring fused-on;R.sup.7 and R.sup.8 each independently represents substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted aralkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkyloxy, substituted or unsubstituted arloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted arylthio, substituted or unsubstituted amino or a substituted or unsubstituted heterocyclic group or R.sup.7 and R.sup.8 together represent the necessary atoms to close a 5- or 6-membered ring;X represents N-Ar;Ar represents an aromatic nucleus substituted in para position by a substituent chosen from the group consisting of substituted or unsubstituted amino, substituted or unsubstituted alkyloxy, substituted or unsubstituted aryloxy, substituted or unsubstituted alkylthio, substituted or unsubstituted arylthio, hydroxy and mercapto.
摘要翻译:染料对应于下式 - 其中Z表示CN,COOR1或CONR2R3; R 1,R 2和R 3各自独立地表示氢,取代或未取代的烷基,取代或未取代的环烷基,取代或未取代的芳基,或者R 2和R 3一起代表封闭杂环核或取代的杂环核的必要原子; Y表示OR4或NR5R6或CN; R4表示氢,取代或未取代或未取代的芳基,SO2R7,COR7,CSR7,POR7R8; R 5和R 6各自独立地具有给予R4的意义之一或表示取代或未取代的氨基,或者R 5和R 6一起代表关闭杂环核或取代的杂环核的必要原子,包括杂环核与脂族或芳香环稠合 -上; R 7和R 8各自独立地表示取代或未取代的烷基,取代或未取代的环烷基,取代或未取代的烯基,取代或未取代的芳烷基,取代或未取代的芳基,取代或未取代的烷氧基,取代或未取代的芳氧基,取代或未取代的烷硫基,取代或未取代的芳硫基 取代或未取代的氨基或取代或未取代的杂环基或R7和R8一起代表必要的原子以封闭5-或6-元环; X表示N-Ar; Ar表示通过选自取代或未取代的氨基,取代或未取代的烷氧基,取代或未取代的芳氧基,取代或未取代的烷硫基,取代或未取代的芳硫基,羟基和巯基的取代基取代在对位的芳香核。
摘要:
Intramolecular nucleophilic displacement compound or a precursor thereof wherefrom during photographic processing a photographically useful group can be split off, said intramolecular nucleophilic displacement compound or precursor thereof corresponding to the following general structure (I): ##STR1## wherein Nu.sup.1 represents a nucelophilic group e.g. HO, H.sub.2 N or Hs, or a precursor of such nucleophilic group e.g. an oxidized nucleophilic group e.g. O.dbd. or HN.dbd., or RO wherein R is an alkyl, an acyl, an aryl or a trialkylsilanyl group, which groups may be substituted, the said nucleophilic group or precursor thereof being located in adjacent position to C(R.sup.1 R.sup.2) so as to make possible elimination of PUG through a nucleophilic displacement reaction;Ar represents an aryl group or a heteroaryl group (e.g. pyridine), which groups may be substituted by one or more mono-atomic or poly-atomic groups, e.g. alkyl groups, nitro groups, cyano groups, carboxy groups, or by sibstituents which, when in adjacent positions on the ring, together form a ring fused with the (hetero)aryl group, e.g. a benzene ring, a cyclohexane ring, a heteroannulated ring; Ar may comprise as substituent e.g. another nucleophilic group Nu.sup.2 (same as or different from Nu.sup.1);each of R.sup.1 and R.sup.2 (same or different) represents hydrogen or an alkyl, an aryl or an aralkyl group which groups each may be substituted;R.sup.3 represents an alkyl, an aralkyl, an alkyloxy, an aryloxy, an alkylthio, an arylthio, an amino group which groups each may be substituted, an oxy (O.sup.-) or a hydroxy group;PUG is a group containing a hetero atom (selected from among N, S and O) through which it is attached to the phosphor atom and producing a photographically useful activity after cleavage of the bond between the hetero atom and the phosphor atom.
摘要:
Photographic silver halide emulsion element for dye image production comprising a support carrying at least one alkali-permeable silver halide hydrophilic colloid emulsion layer incorporating in operative association therewith a dye-releasing compound capable of releasing a diffusible dye moiety from a carrier moiety by a redox reaction, said compound corresponding to the general formula: ##STR1## wherein CAR is an organic carrier moiety capable of undergoing a redox reaction, L is a group cleavable or releasable from the carrier moiety by a redox reaction taking place in alkaline condiitons as a function of the development of a silver halide emulsion layer incorporating such compound, G is a bridging group, each of L.sup.1 and L.sup.2 is a linking member, PUG.sup.1 is a dye (precursor) group, PUG.sup.2 is a dye (precursor) group, an UV-absorber group, or a singlet oxygen scavenger group.
摘要:
The present invention provides a dye diffusion transfer imaging process comprising transferring image-wise by diffusion an acid dye to an image-receiving layer incorporating a non-polymeric phosphonium mordanting agent and a copolymer latex comprising free weak acid groups as a stabilizer for the mordanting agent, wherein the image-wise transfer of said acid dye is performed in the presence of a heterocyclic compound corresponding to one of the following general formulae I, II, and III: ##STR1## wherein: Y represents the non-metallic atoms needed to complete a saturated or unsaturated 5- or 6-membered heterocyclic nucleus, which may carry a fused-on aromatic ring system, and M represents hydrogen, an alkali metal atom, a quaternary ammonium group, or a negative charge forming an inner salt with a quaternized nitrogen atom of the heterocyclic compound. The invention also provides an image receptor element for dye diffusion transfer imaging processes comprising a support and such image-receiving layer.
摘要:
The invention relates to a method of preparing 1 .alpha.-hydroxyvitamin D or 1 .alpha.-hydroxy-previtamin D compounds by hydroxylating the 1 .alpha.-position of an adduct of a previtamin D compound with a suitable dienophile, in which adduct optionally present hydroxy group or hydroxy groups is or are protected, if desired, and after removal of the protecting group or groups, isolating the 1 .alpha.-hydroxyvitamin D or 1 .alpha.-hydroxy-previtamin D compound.The invention also relates to 1 .alpha.-hydroxy-previtamin D compounds.The invention further relates to an adduct of a previtamin D or tachysterol compound with a dienophile of the general formula ##STR1## in which A' and B' are equal and represent methoxy groups or ethoxy groups, or in which A' and B' together constitute a phenylimino or o-phenylene group.