Process for the production of 2-equivalent yellow couplers

Details Process for the production of 2-equivalent yellow couplers Process for the production of 2-equivalent yellow couplers

1979-09-12

1980-10-28

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544287, 544255, 548321, 548305, 548343, 260556B, 260562P, 260326A, 546271, C07D25304, C07D23988, C07D23364, C07D47308

Patent

active

042308518

ABSTRACT:
.alpha.-Acylacetamide 2-equivalent yellow couplers may be prepared by reacting .alpha.-halo-.alpha.-acyl-acetamides with phenols or NH-acidic organic compounds in the presence of a non-alkylatable bicyclic nitrogen-containing base, such as 1,5-diazabicyclo[4,3,0]non-5-ene or 1,8-diazabicyclo[5,4,0]-undec-7-ene.

REFERENCES:
patent: 4133955 (1979-01-01), Renner
patent: 4138557 (1979-02-01), Boie et al.

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