An NMR investigation of the merocyanine dyes generated by protolysis of some novel spironaphthopyranoindoles

Christopher D. Gabbutt; John D. Hepworth; B. Mark Heron

doi:10.1016/S0143-7208(99)00007-8

An NMR investigation of the merocyanine dyes generated by protolysis of some novel spironaphthopyranoindoles

Christopher D. Gabbutt, John D. Hepworth, B. Mark Heron

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Two novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation gives stable, intensely coloured dyes. ¹H nmr spectroscopy has been used to establish the configuration of these dyes.

Original language	English
Pages (from-to)	35-43
Number of pages	9
Journal	Dyes and Pigments
Volume	42
Issue number	1
DOIs	https://doi.org/10.1016/S0143-7208(99)00007-8
Publication status	Published - 30 Apr 1999
Externally published	Yes

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title = "An NMR investigation of the merocyanine dyes generated by protolysis of some novel spironaphthopyranoindoles",

abstract = "Two novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation gives stable, intensely coloured dyes. 1H nmr spectroscopy has been used to establish the configuration of these dyes.",

keywords = "Merocyanine dyes, nmr spectroscopy, Photochromism, Protolysis, Spiroindolinonaphthopyran (NIPS), Synthesis",

author = "Gabbutt, {Christopher D.} and Hepworth, {John D.} and Heron, {B. Mark}",

year = "1999",

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AU - Gabbutt, Christopher D.

AU - Hepworth, John D.

AU - Heron, B. Mark

PY - 1999/4/30

Y1 - 1999/4/30

N2 - Two novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation gives stable, intensely coloured dyes. 1H nmr spectroscopy has been used to establish the configuration of these dyes.

AB - Two novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation gives stable, intensely coloured dyes. 1H nmr spectroscopy has been used to establish the configuration of these dyes.

KW - Merocyanine dyes

KW - nmr spectroscopy

KW - Photochromism

KW - Protolysis

KW - Spiroindolinonaphthopyran (NIPS)

KW - Synthesis

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ER -

An NMR investigation of the merocyanine dyes generated by protolysis of some novel spironaphthopyranoindoles

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