Compositions, process and systems

Details Compositions, process and systems Compositions, process and systems

1981-01-19

1982-03-23

Demers, Arthur P.

Harness for working animal

26032612R, 260315, 26032615, 542416, 546273, C07D20912, C07D40112, C07D40312

Patent

active

043213693

ABSTRACT:
Aldehyde or ketone 0-[(3-indolyl)(aryl or heteroaryl)methyl]oximes 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 aldehyde or ketone oximes in the presence of a base.

REFERENCES:
patent: 3055912 (1962-09-01), Hoffmann et al.
patent: 3860609 (1975-01-01), Lundt
patent: 4072690 (1978-02-01), Garner et al.
patent: 4124227 (1978-11-01), Ruus

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