The synthesis and electronic absorption spectra of 3-phenyl-3(4- pyrrolidino-2-substituted phenyl)-3H-naphtho[2,1-b]pyrans: Further exploration of the ortho substituent effect

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Abstract

Introduction of a substituent into a sterically demanding 2-position of a 3-(4-pyrrolidinophenyl) ring of a 3,3-diaryl-3H-naphtho[2,1-b]pyran results in the generation of an additional short wavelength absorption band leading to organic photochromes that appear as dull shades of orange and red.

LanguageEnglish
Pages737-745
Number of pages9
JournalTetrahedron
Volume62
Issue number4
Early online date28 Oct 2005
DOIs
Publication statusPublished - 23 Jan 2006
Externally publishedYes

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Absorption spectra
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naphtho(2,1-b)pyran

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title = "The synthesis and electronic absorption spectra of 3-phenyl-3(4- pyrrolidino-2-substituted phenyl)-3H-naphtho[2,1-b]pyrans: Further exploration of the ortho substituent effect",
abstract = "Introduction of a substituent into a sterically demanding 2-position of a 3-(4-pyrrolidinophenyl) ring of a 3,3-diaryl-3H-naphtho[2,1-b]pyran results in the generation of an additional short wavelength absorption band leading to organic photochromes that appear as dull shades of orange and red.",
keywords = "Dual absorption bands, Naphthopyrans, Photochromism, Steric effects, Synthesis",
author = "Gabbutt, {Christopher D.} and Heron, {B. Mark} and Instone, {Alicia C.}",
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T1 - The synthesis and electronic absorption spectra of 3-phenyl-3(4- pyrrolidino-2-substituted phenyl)-3H-naphtho[2,1-b]pyrans

T2 - Tetrahedron

AU - Gabbutt, Christopher D.

AU - Heron, B. Mark

AU - Instone, Alicia C.

PY - 2006/1/23

Y1 - 2006/1/23

N2 - Introduction of a substituent into a sterically demanding 2-position of a 3-(4-pyrrolidinophenyl) ring of a 3,3-diaryl-3H-naphtho[2,1-b]pyran results in the generation of an additional short wavelength absorption band leading to organic photochromes that appear as dull shades of orange and red.

AB - Introduction of a substituent into a sterically demanding 2-position of a 3-(4-pyrrolidinophenyl) ring of a 3,3-diaryl-3H-naphtho[2,1-b]pyran results in the generation of an additional short wavelength absorption band leading to organic photochromes that appear as dull shades of orange and red.

KW - Dual absorption bands

KW - Naphthopyrans

KW - Photochromism

KW - Steric effects

KW - Synthesis

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U2 - 10.1016/j.tet.2005.09.143

DO - 10.1016/j.tet.2005.09.143

M3 - Article

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EP - 745

JO - Tetrahedron

JF - Tetrahedron

SN - 0040-4020

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