Compositions, process and systems

Details Compositions, process and systems Compositions, process and systems

1985-01-17

1987-01-13

Bond, Robert T.

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344124, 344143, 344144, 546201, 546273, 548444, 548455, 548468, 427151, B41M 516, B41M 518, B41M 522

Patent

active

046368205

ABSTRACT:
3-[(Substituted-amino)(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 amines or precursors thereof in the presence of a base.

REFERENCES:
M. Scholtz, Chem. Ber. 46, 2138-2146 (1913).
R. W. Huffman et al., J. Amer. Chem. Soc. 89, 6243-6251 (1967).
C. W. Rees et al., J. Chem. Soc., 687-691 (1965).
V. N. Rusinova et al., Tr. Mosk. Khim-Tekknol. Inst. No. 66, 125-128 (1970); Chem. Abstracts 75, 88430x (1971).

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