Colorants contenant une pyrrolo(2,1-a)isoquinoline

Pyrrolo(2,1-a)isoquinoline dyes

Pyrrolo(2,1-a)isochinolinfarbstoffe

Abstract

A series of novel pyrrolo[2,1-a]isoquinoline dyes has been prepared using readily available starting materials via a simple synthetic pathway. These dyes have narrow absorption bands in the range of 500-900 nm. Those that absorb in the near-infrared region (700-1400 nm) lack significant absorption in the 300-400 nm ultraviolet region of the spectrum; this is an advantage for use in an applications such as imaging setting film. In addition, the greater thermal and chemical stability of these dyes in comparison to their indolizine analogues should be valuable in many applications.

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    EP-0962923-A1December 08, 1999Fuji Photo Film Co., Ltd.Information recording medium and novel oxonol compound
    US-6225024-B1May 01, 2001Fuji Photo Film Co., Ltd.Information recording medium
    US-6646132-B2November 11, 2003Fuji Photo Film Co., Ltd.Information recording medium and novel oxonol compound