Process for producing 3,5-di(.alpha.-methylbenzyl)salicyclic aci

Details Process for producing 3,5-di(.alpha.-methylbenzyl)salicyclic aci Process for producing 3,5-di(.alpha.-methylbenzyl)salicyclic aci

1991-08-05

1993-12-28

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 27, 556106, 556115, 556147, 560 57, 562468, C07F 306, C07C 6510

Patent

active

052741508

ABSTRACT:
A color-developing sheet using, as a color developer, polyvalent-metal-modified products of salicylic acid compounds composed mainly of a 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative obtained by reacting a salicylic acid ester with an .alpha.-methylbenzyl halide in the presence of an acid catalyst and hydrolyzing the reaction product.
Said color-developing sheet has excellent color developability at low temperatures and gives a color of excellent water resistance.

REFERENCES:
patent: 4745203 (1988-05-01), Nachbur
patent: 4748259 (1988-05-01), Nachbur
patent: 4754063 (1988-06-01), Nachbur
patent: 4879368 (1989-11-01), Botta et al.
patent: 4952648 (1990-08-01), Yamaguchi et al.
Chem. Abstracts, vol. 93, Aug. 18, 1980, 93:71304h.
Chem. Abstracts, vol. 79, No. 3, Jul. 23, 1973, 79:18310s.
English Abstract of JP-A-2091042 (1990).

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