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Alkali‐promoted yellowing of wool. Yellow degradation products from a model for protein‐bound cystine
Author(s) -
Hill R R,
Ghadimi M.
Publication year - 1996
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1996.tb01806.x
Subject(s) - cystine , wool , chemistry , alkali metal , pigment , diacetyl , degradation (telecommunications) , organic chemistry , cysteine , materials science , telecommunications , computer science , composite material , enzyme
NN“ ‐Diacetyl‐L‐cystine bismethylamide reproduces faithfully the known alkali‐promoted chemistry of cystine in wool and becomes bright yellow in the process. It is suggested that two minor, labile, but intensely yellow components of the product mixture, N ‐methylthiopyruvamide and one or more polysulphides, are analogues of the elusive pigments in the yellowing of wool under similar conditions.