| abstract |
A photographic yellow dye-forming coupler having the general formula:n wherein R¹ is an alkyl group of 1-4 carbon atoms, ball is a ballast group of such size and configuration as to render the coupier non-diffusible in photographic layers, nY is CO, PO₃ or SO₂, nX is an aryloxy coupling-off group, and nn is 1 or, when Y is PO₃, n is 2. |