1H and13C NMR signal assignments of some new spiro[7H-benzo[de]anthracene-naphthopyrans]

scientific article published on 01 March 2008

A closer look at the photochromism of vinylidene-naphthofurans

article published in 2017

A novel generation of hybrid photochromic vinylidene-naphthofuran silica nanoparticles through fine-tuning of surface chemistry

scientific article

Acid-catalyzed domino reactions of tetraarylbut-2-yne-1,4-diols. Synthesis of conjugated indenes and inden-2-ones.

scientific article published on 30 May 2014

Bichromophoric dye derived from benzo[1,3]oxazine system

Cationic 3H-indolium dyes by ring-opening of benzo[1,3]oxazine

Control of the Switching Speed of Photochromic Naphthopyrans through Restriction of Double Bond Isomerization.

scientific article

Diastereoselective Synthesis of 4-Sila-3,4,4a,5-tetrahydro-2H-isoquinolin-1-ones through Intramolecular Diels-Alder Reaction of Chiral Silatrienes

Enhancement of the photochromic switching speed of bithiophene azo dyes

Estudo do comportamento fotocrómico de um naftopirano: uma experiência simples ilustrativa do fotocromismo

Fast (hetero)aryl-benzothiazolium ethenes photoswitches activated by visible-light at room temperature

scholarly article by Paulo J. Coelho et al published June 2015 in Dyes and Pigments

Fast Color Change with Photochromic Fused Naphthopyrans

scientific article published on 18 November 2015

Fast and fully reversible photochromic performance of hybrid sol–gel films doped with a fused-naphthopyran

Fast photochromic sterically hindered benzo[1,3]oxazines

Fast thermal cis–trans isomerization of heterocyclic azo dyes in PMMA polymers

Fastest non-ionic azo dyes and transfer of their thermal isomerisation kinetics into liquid-crystalline materials

First report of a permanent open form of a naphthopyran

Grey colouring thermally reversible photochromic 1-vinylidene-naphthofurans

article by Céu M Sousa et al published June 2017 in Dyes and Pigments

NMR investigation of the dyes formed under UV irradiation of some photochromic indeno-fused naphthopyrans

Naphthopyran-Based Silica Nanoparticles as New High-Performance Photoresponsive Materials

article published in 2016

New benzopyranocarbazoles: synthesis and photochromic behaviour

New heterocyclic systems to afford microsecond green-light isomerisable azo dyes and their use as fast molecular photochromic switches

scientific article

Novel Photochromic Spiro[Thioxanthene-Naphthopyrans] with Faster Bleaching Kinetics

Novel photochromic 2,2′-bithiophene azo dyes

One pot synthesis of aryl substituted aurones

Photochemical and thermal behaviour of new photochromic indeno-fused naphthopyrans

Photochromic Fused-Naphthopyrans without Residual Color

scientific article published on 09 April 2012

Photochromic and photophysical properties of new benzo- and naphtho[1,3]oxazine switches

scientific article

Photochromic hybrid sol–gel films containing naphthopyrans

Photochromic properties of thienylpyrrole azo dyes in solution

Photoswitching in azo dyes bearing thienylpyrrole and benzothiazole heterocyclic systems

Preventing the formation of the long-lived colored transoid-trans photoisomer in photochromic benzopyrans

scientific article

REGIOSELECTIVE SYNTHESIS OF SILACYCLOALKANES

Remarkable thermally stable open forms of photochromic new N-substituted benzopyranocarbazoles

Reversible trans–cis photoisomerization of new pyrrolidene heterocyclic imines

Screen-Printed Photochromic Textiles through New Inks Based on SiO2@naphthopyran Nanoparticles

article by Tânia V Pinto et al published 12 October 2016 in ACS Applied Materials and Interfaces

Spectrokinetic studies on new bi-photochromic molecules containing two naphthopyran entities

Synthesis and characterization of novel diazenes bearing pyrrole, thiophene and thiazole heterocycles as efficient photochromic and nonlinear optical (NLO) materials

Synthesis and photochemical reactivity of new 4-substituted naphtho[1,2-b]pyran derivatives

Synthesis and photochromic behaviour of novel 2H-chromenes derived from fluorenone

article

Synthesis and photochromic properties of symmetrical aryl ether linked bi- and tri-naphthopyrans

Synthesis and spectrokinetic studies of spiro[thioxanthene-naphthopyrans]

Synthesis of 1-vinylidene-naphthofurans: a thermally reversible photochromic system that colors only when adsorbed on silica gel.

scientific article published on 5 July 2013

Synthesis of Polycyclic Spironaphthofuran Derivatives by Acid-Catalyzed Domino Reaction of 2-Naphthols with Tetraarylbut-2-yne-1,4-diols

Synthesis of a Photochromic Fused 2H-Chromene Capable of Generating a Single Coloured Species

article by Céu M. Sousa et al published 6 February 2012 in European Journal of Organic Chemistry

Synthesis of carbonyl dyes from 1-hydroxy-2-acetonaphthone and 2-fluorobenzophenone

The effect of a sulphur bridge on the photochromic properties of indeno-fused naphthopyrans

The unexpected formation of novel carbonyl dyes

Thermally reversible photochromic behaviour of new naphthopyrans involving an intramolecular [2+2] cyclization reaction

article published in 2009

Unexpected formation of new photochromic compounds derived from 3,3-diphenyl-3H-naphtho[2,1-b]pyran-1-one

article published in 2010

Unprecedented coexistence of a spirooxazine and its four transoid photomerocyanines

article published in 2006