323579-00-6, Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent£¬Which mentioned a new discovery about 323579-00-6
Photographic element, compound, and process
Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan “NB coupler” having the formula (I):wherein :the term “NB coupler” represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5nm less than that of the same dye in solution form;Y is H or a coupling-off group;each Z” and Z* is an independently selected substituent group where n is 1 to 4 and p is 0 to 2;W2represents the atoms necessary to complete a carbocyclic or heterocyclic ring group; andV is a sulfone or sulfoxide containing group;provided that the combined sum of the aliphatic carbon atoms in V, all Z” and all Z* is at least 8;provided further that there is one and only one Z” substituent ortho to the carbonamido group linking the W2ring to the rest of the coupler; andprovided still further that when W2forms a carbocyclic aromatic ring, at least one Z” is selected from the group consisting of alkyl, alkoxy, hydroxy, aryl, aryloxy, oxycarbonyl, oxysulfonyl, sulfoxide, sulfamoyl, thio, carbamoyl, carboxy, carbonamido, ureido, cyano, nitro, and halogen groups. The element exhibits improved cyan dye hue.
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Reference£º
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem