Protolysis of spironaphtho(aza)pyranoindoles

Christopher D. Gabbutt, John D. Hepworth, B. Mark Heron, Steven M. Partington

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

Some novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation results in ring opening to given stable, intensely coloured dyes. Recyclisation and decolouration result on basification.

LanguageEnglish
Pages323-328
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume345
DOIs
Publication statusPublished - 1 Dec 2000
Externally publishedYes
Event3rd International Symposium on Organic Photochromism - Fukuoka, Japan
Duration: 14 Nov 199918 Nov 1999
Conference number: 3

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Protonation
ambient temperature
Coloring Agents
Dyes
dyes
rings
Temperature

Cite this

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title = "Protolysis of spironaphtho(aza)pyranoindoles",
abstract = "Some novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation results in ring opening to given stable, intensely coloured dyes. Recyclisation and decolouration result on basification.",
keywords = "photochromism, (mero)cyanine dyes, nmr spectroscopy, protolysis, spiroindolinonaphthoxazine, spiroindolinonaph-thopyran",
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journal = "Molecular Crystals and Liquid Crystals",
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Protolysis of spironaphtho(aza)pyranoindoles. / Gabbutt, Christopher D.; Hepworth, John D.; Heron, B. Mark; Partington, Steven M.

In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 345, 01.12.2000, p. 323-328.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Protolysis of spironaphtho(aza)pyranoindoles

AU - Gabbutt, Christopher D.

AU - Hepworth, John D.

AU - Heron, B. Mark

AU - Partington, Steven M.

PY - 2000/12/1

Y1 - 2000/12/1

N2 - Some novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation results in ring opening to given stable, intensely coloured dyes. Recyclisation and decolouration result on basification.

AB - Some novel amino-substituted spiroindolinonaphthopyrans have been synthesised. Whilst these compounds exhibit no observable photochromic properties at ambient temperature, protonation results in ring opening to given stable, intensely coloured dyes. Recyclisation and decolouration result on basification.

KW - photochromism

KW - (mero)cyanine dyes

KW - nmr spectroscopy

KW - protolysis

KW - spiroindolinonaphthoxazine

KW - spiroindolinonaph-thopyran

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DO - 10.1080/10587250008023939

M3 - Conference article

VL - 345

SP - 323

EP - 328

JO - Molecular Crystals and Liquid Crystals

T2 - Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals

SN - 1542-1406

ER -