Coumarins containing N-alkylsulfonamide groups built into benzoxazolyl, ben
zothiazolyl, or benzimidazolyl systems were synthesized and then reacted wi
th NaCN to give fluorescent red compounds. Results from a determination of
the spectral properties and dyeing characteristics of these new dyes sugges
t that they are potential commercial solvent dyes. (C) 2001 Elsevier Scienc
e Ltd. All rights reserved.