C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
42/14, 42/3, 260
C07D 209/14 (2006.01) B41M 5/136 (2006.01) B41M 5/323 (2006.01) C07D 209/12 (2006.01)
Patent
CA 1151178
ABSTRACT OF THE DISCLOSURE 3-[(Alkoxy)(aryl or heteroaryl)methyl]-1H-indoles which are useful as color formers in pressure-sensitive carbonless duplicating systems and thermal marking systems are prepared by reacting 3-[(arylsulfonyl)(aryl or heteroaryl)methyl]-1H- indoles with alcohols in the presence of a base.
372365
Hung William M.
Schmidt Paul J.
Fetherstonhaugh & Co.
Sterling Drug Inc.
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